17th APS Topical Conference on Shock Compression of Condensed Matter

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Nov 29, 2013 (3 years and 4 months ago)


17th APS Topical Conference on
Shock Compression of Condensed Matter
Ta b l e o f C o n t e n t s
Conference Sponsors ...................................................................................2
General Information .....................................................................................3
Onsite Registration .......................................................................................3
Electronic Conference Tools ........................................................................3
Scientific Program ........................................................................................4
Plenary Papers ..............................................................................................4
Special Sessions ...........................................................................................5
Presentation Guidelines ...............................................................................5
Session Chair Guidelines .............................................................................6
Advanced Photon Source Tour ....................................................................7
Business Meeting .........................................................................................7
Proceedings ..................................................................................................7
Company Showcase .....................................................................................7
Social Program ............................................................................................7
Companion Program ....................................................................................8
Conference Organizers .................................................................................9
Technical Program Committee ....................................................................9
GSCCM Officers for 2011 ...........................................................................9
Summary of Events ....................................................................................10
Social Program Summary ..........................................................................10
Companion Program Summary ..................................................................10
Registration Hours .....................................................................................10
Speaker-Ready Room Hours ......................................................................10
Conference Overview ................................................................................11
C o n f e r e n C e S p o n S o r S
We would like to thank the 17th American Physical Society
Shock Compression of Condensed Matter Topical Group
Meeting Sponsors.
Defense Threat Reduction Agency
Lawrence Livermore National Laboratory
Los Alamos National Laboratory
Sandia National Laboratories
C o r p o r a t e S p o n S o r S
We would like to thank these companies for sponsoring the
conference bags, coffee mugs, and water bottles.
Hadland Imaging • Specialised Imaging • Vision Research
G e n e r a l I n f o r m a t I o n
Welcome to the 17th APS Topical Conference on
Shock Compression of Condensed Matter.
The Renaissance Chicago Downtown is the site of
all technical sessions, and provides lodging accom-
modations to participants. The conference hotel is lo-
cated at the end of Chicago’s Magnificent Mile, with
convenient access to Chicago public transportation.
The full conference registration fee includes the Sun-
day and poster session receptions, Thursday banquet,
continental breakfast each morning, two drink tick-
ets, and eight coffee breaks. Student registration in-
cludes all the above except for the Thursday banquet.
However, tickets for the banquet are available for
students who wish to attend. Companion registration
includes the Sunday reception and companion break-
fast. Additional companion activities and the banquet
must be registered for separately.
To be identified as a registered attendee, please wear
your name badge for all conference events. Specific
dietary arrangements may be made with advance no-
tice. No part of the registration fee will be refunded
for unused conference-provided meals.
All participants will receive copies of the abstract
book (the present volume) and hardbound proceed-
ings (published by AIP) along with a CD of the pro-
17th APS Topical Conference on
Shock Compression of Condensed Matter
J une 2 6 –J ul y 1, 2 0 1 1
C h i c a g o, I l l i n o i s
o n S I t e r e G I S t r a t I o n
Burnham Office (adjacent to the Grand Ballroom)
Hours are as follows:
Sunday, June 26 .................2:00 pm – 8:00 pm
Monday, June 27 ................7:00 am – 5:00 pm
Tuesday, June 28 ................7:30 am – 11:00 am
Wednesday, June 29 ...........7:30 am – 5:00 pm
Thursday, June 30 ..............7:30 am – 3:30 pm
Friday, July 1 .....................Closed
A poster board in the registration area will be avail-
able for various communications (e.g. babysitting
needed or offered, coordinating rides, messages,etc.).
Please check this board occasionally.
e l e C t r o n I C C o n f e r e n C e t o o l S
For up-to-date information (including any updates
to this Preamble), please check our website at:
Bringing your iPhone, iPad, iTouch, or Droid to the
Meeting? We’ve got an app for you! The APS Meet-
ings Department has an app for your iPhone, iPad,
iTouch, or Droid. The SHOCK11 Meeting app con-
tains the scientific program of abstracts. You can sort
the talks by session. You can to read the abstracts, view
the speaker index and see floor plans of the Renais-
sance Chicago Downtown. To get the app, you can:
• Download the app from iTunes.
• Search for APS SHOCK 2011 in the App Store
or Market
• See the information on the conference website
on getting the app.
4 S H O C K M E E T I N G 2 0 1 1
S C I e n t I f I C p r o G r a m
The scientific focus of the Conference is on funda-
mental and applied research topics related to dy-
namic compression of condensed matter. This mul-
tidisciplinary field of research encompasses areas
of physics, chemistry, materials science, mechanics,
geophysics and planetary physics, and applied math-
ematics. Experimental, computational and theoretical
studies all play important roles.
Plenary, oral and poster sessions will be featured
during the five days of the Conference. The program
contains 688 papers. These papers have been dis-
tributed over five plenary sessions, 90 oral sessions,
and a poster session. The parallel and poster sessions
have been planned around Topical Areas, each over-
seen by a member of the Technical Program Commit-
tee. Following a technical review, papers presented at
the conference will be published by the American In-
stitute of Physics, both as a bound volume and a CD-
ROM. For the first time, the conference proceedings
will also be made available as open-access papers.
Thus, anyone will be able to download the papers at
no charge, making your research more readily avail-
able to the scientific community.
Each day of the Conference begins with a plenary lec-
ture. Additional highlights during the week include
two special sessions and 40 invited talks embedded in
the parallel sessions. The program has been arranged
so it is possible to attend all of the invited talks.
A simplified meeting time-plan and hotel floor plan
are provided at the end of the Bulletin. The time-plan
includes plenary, parallel and poster sessions, special
events and the GSCCM Business Meeting. Times
and alphanumeric codes for the plenary talks are giv-
en below.
p l e n a r y p a p e r S
M o n d a y, J u n e 2 7
Material Response to Shock/Dynamic Loading:
Windows into Shock-Induced Processes in
8:00 am
Grand Ballroom
George T. Gray, III, Los Alamos National Laboratory
T u e s d a y, J u n e 2 8
New Frontiers at the Intersection of Shock
Physics and Planetary Sciences
8:00 am
Grand Ballroom
Sarah T. Stewart, Harvard University
W e d n e s d a y, J u n e 2 9
Metallized Heterogeneous Detonation and
Dense Reactive Particle Flow
8:00 am
Grand Ballroom
Fan Zhang, DRDC Suffield, Canada
T h u r s d a y, J u n e 3 0
George E. Duvall Shock Compression Science
Award Talk: The Role of Gibbs Function in
the Solid-Solid Phase Transformations under
Nonhydrostatic Stress Conditions
8:00 am
Grand Ballroom
James N. Johnson, Los Alamos National Laboratory
F r i d a y, J u l y 1
Megaamps, Megagauss, and Megabars: Using
the Sandia Z Machine to Perform Extreme
Materials Dynamics Experiments
8:00 am
Grand Ballroom
Marcus Knudson, Sandia National Laboratories
S H O C K M E E T I N G 2 0 1 1 5
S p e C I a l S e S S I o n S
W e d n e s d a y, J u n e 2 9
Post Shock Turbulence I
9:15 am Ren Ballroom C
Post Shock Turbulence II
11:00 am Ren Ballroom C
Post Shock Turbulence III
2:00 pm Ren Ballroom C
W e d n e s d a y, J u n e 2 9
High Pressure Strength I
2:00 pm Ren Ballroom AB
High Pressure Strength II
4:00 pm Ren Ballroom AB
T h u r s d a y, J u n e 3 0
High Pressure Strength III
9:00 am Ren Ballroom AB
High Pressure Strength IV
11:00 am Ren Ballroom AB
High Pressure Strength V
4:00 pm Grand Ballroom IV-V
F r i d a y, J u l y 1
High Pressure Strength VI
9:00 am Grand Ballroom I-III
High Pressure Strength V
11:00 am Grand Ballroom I-III
p r e S e n t a t I o n G u I d e l I n e S
Oral Presentations
All oral sessions will be equipped with an LCD pro-
jector with switched input, laptop computer, overhead
projector, screen, lavaliere microphone, and pointer.
The laptop computer will open Microsoft Windows-
compatible PowerPoint presentations, Windows Me-
dia movies, and PDF files. If you plan to use your
own laptop, please ensure the screen resolution is set
at a maximum of 1024 x 768. Macintosh users must
bring the necessary converters/cords to connect your
laptop to the projector. If your presentation is on a
thumb drive or CD, please visit the Speaker-Ready
Room (Bridgeport) the day before your talk to load it
into the correct session.
Speaker-Ready Room: Bridgeport
The speaker ready room will be open:
Sunday, June 26 .......................4:00 pm – 6:00 pm
Monday, June 27 ......................7:30 pm – 9:00 pm
Tuesday, June 28 ......................5:30 pm – 7:30 pm
Wednesday, June 29 .................5:30 pm – 7:30 pm
Thursday, June 30 ....................5:30 pm – 7:30 pm
Friday, July 1 ............................Closed
Plenary talks will be 50 minutes plus 10 minutes for
discussion and questions. Invited talks will be 25 min-
utes plus five minutes for discussion and questions.
Contributed talks will be 12 minutes plus three min-
utes for discussion and questions. Session chairs have
been asked to keep strictly to the schedule to maintain
synchronization between the parallel sessions.
Please remember that this is a time to communicate
the science of your work to your audience. The per-
son in the last row came to hear what you have to
say and see what you have to show. Slides should be
designed to be readable from anywhere in the room;
print smaller than 14 point may be difficult to see.
Proper use of the microphone is important as well.
Comprehensive presentations of data should be left
to publications. As well, please rehearse the presen-
tation ahead of time. For an interesting discussion of
what makes a successful scientific talk, see Stephen
Benka’s article, Who is listening? What do they hear?
(Physics Today, 61, 49-53, 2008).
6 S H O C K M E E T I N G 2 0 1 1
Poster Presentations
Poster sessions will be held in the Grand Ballroom IV-
VI. Each poster will be allowed a poster board space of
47” x 47” (120 cm x 120 cm), and it may extend down
from the bottom of the poster board (maximum length
6’). The boards allow fastening by thumbtack or Vel-
cro fastening strips. Thumbtacks will be available. The
boards will be assigned numbers corresponding to the
presentation numbers, i.e. F1.0002 – F1.00209. Au-
thors may display their posters beginning at 3:30 pm
on Monday, June 27. Posters must be removed at the
end of the poster session or they will be discarded.
The poster session is Monday evening 5:30-7:30 pm.
During this time, the authors will be required to stand
by their posters. Light hors d’oeuvres and beverages
will be available during the poster sessions.
As with the oral presentations, this is a time to com-
municate the science of your work to your audience.
During preparation, time spent devising a sensible
flow of thoughts is well spent, including a clear sum-
mary. Posters should be readable from a distance of
at least five feet.
S e S S I o n C h a I r G u I d e l I n e S
The session chairs play the vital role of ensuring that
the technical sessions are quality venues for scien-
tific communication. Authors should be able to pres-
ent their work in an orderly manner and others able
to ask relevant questions or make suggestions for im-
provement of the work discussed. You hold the keys
to a successful conference.
Prior to your session, please check both the Corri-
genda distributed with the Bulletin and the on-site
program changes board located near meeting reg-
istration to see if there are any last minute changes
or withdrawals affecting your session. Arrive at the
meeting room about 15 minutes prior to the start of
the session. Familiarize yourself with the controls for
lights, microphones, A-V equipment and the timer.
If you encounter problems, you should immediately
alert the Registration Desk.
Start the session on time. Briefly introduce yourself,
announce the first paper and author, and start the timer.
Please adhere to the time schedule listed in the Bul-
letin so that simultaneous sessions are as closely syn-
chronized as possible. Many attendees move from
session to session in order to hear specific papers.
Note: Any time used by the speaker and/or techni-
cians to set up laptops for Power Point presentations
is deducted from the time allocated for that talk.
The allotted time for contributed papers is 15 min-
utes; for invited papers, 30 minutes. If you are chair-
ing a session that includes both contributed and in-
vited papers please be aware of the respective time
allocations, and time as follows:
Contributed papers: Give initial warning at 10 min-
utes and the final warning at 12 minutes. When this
time is up, allow 3 additional minutes for questions
relating to the paper, thank the speaker, and promptly
introduce the next paper and speaker. If the speaker
uses more than 12 minutes of speaking time, reduce
questions accordingly.
Invited papers: Give initial warning at 20 minutes
and the final warning at 25 minutes. When this time is
up, allow 5 additional minutes for questions relating
to the paper, thank the speaker, and promptly intro-
duce the next paper and speaker. If the speaker uses
more than 25 minutes of speaking time, reduce ques-
tions accordingly.
Explain the timing system to the audience prior to the
start of the session and as often during the session as
you think necessary.
Session chairs should courteously, but firmly, ask
speakers to stop when their allotted time is up. The
session must end on time and that the last speaker has
just as much right to an audience as the first speaker.
Should a speaker fail to appear, you may allow the
preceding discussion to continue, or recess the session
until it is time for the next scheduled paper. It is im-
portant NOT to call the next scheduled paper before its
scheduled time. At the end of the session, call again for
the regularly scheduled paper, if time allows.
If any problems arise that you are unable to handle
relative to successfully chairing the session, go im-
mediately to the registration desk to alert the staff.
You will likely be asked by editors of the proceedings
to review manuscripts. Thank you for working with
them to make possible the quick publication of a high
quality proceedings.
S H O C K M E E T I N G 2 0 1 1 7
a d v a n C e d p h o t o n S o u r C e
t o u r
During the free afternoon on Tuesday, a tour of the
Advanced Photon Source (APS) at Argonne National
Laboratory has been arranged. This will provide an
opportunity for the shock physics community to learn
about the closely related field of static high-pressure
measurements using X-ray diffraction. Buses will
transport participants to APS and return them to the
hotel following the tour. Pre-registration is required.
B u S I n e S S m e e t I n G
Please plan to attend the GSCCM Business Meet-
ing where issues affecting the future course of the
Topical Group will be discussed. This meeting will
be held at 12:30 pm on Wednesday, June 29 in the
Renaissance D Ballroom.
This meeting is to discuss items relevant to the topi-
cal group operation, policy and direction of the topi-
cal group. It is the place to make suggestions on what
you think the topical group should be addressing, to
formulate new ideas for promoting the group, and to
discuss how the topical group can effectively repre-
sent the shock physics community. It is open to all
conference attendees and needs your input. Please
come along and help set the future direction of our
topical group.
p r o C e e d I n G S
As with recent SCCM Conferences, all manuscripts
for the 17th APS Topical Conference on Shock Com-
pression of Condensed Matter will be submitted
electronically. You are strongly encouraged to sub-
mit a manuscript of your presentation. The Proceed-
ings will be published by the American Institute of
Physics (AIP) as a bound volume, as a CD-ROM,
and freely available on-line as open access papers.
The open access model will allow for the broad-
est possible dissemination of your work. Details on
manuscript submission can be found through the con-
ference website. Manuscripts need to be submitted
through the Proceedings website by August 3, 2011.
C o m p a n y S h o wC a S e
The shock community is heavily dependent on state
of the art high-speed data capture systems, and com-
plex analysis programs, with expertise and consul-
tancy playing a major role. To assist in generating
contacts between suppliers and the research commu-
nity we have organized the company showcase.
We have reserved booths and meeting spaces Mon-
day – Thursday for a number of interested companies
who will be present at the Conference. A document
giving details of the companies attending is avail-
able in your registration packet. We encourage you to
speak to the companies and see what new and excit-
ing products they have available.
S o C I a l p r o G r a m
Events for conference attendees and their companions:
S u n d a y, J u n e 2 6
Welcome Reception
6:00 - 8:00 pm
Chicago Skyline Terrace
After registering, SCCM11 attendees and compan-
ions are cordially invited to a Welcome Reception to
be held on the Chicago Skyline Terrace from 6:00 to
8:00 pm to make new acquaintances and renew old
ones. Hors d’oeuvres and drinks will be served. The
terrace entrance is adjacent to the Gold Coast room
on the third floor.
T u e s d a y, J u n e 2 8
Thomas J. Ahrens Memorial Reception
6:00 pm
Bucktown Room
Friends, colleagues, and former students of Thomas
J. Ahrens are invited to a reception in his honor at
6:00 pm in the Bucktown room. Please see Paul
Asimow, Sarah Stewart, or Bill Nellis if you are in-
terested in attending.
8 S H O C K M E E T I N G 2 0 1 1
W e d n e s d a y, J u n e 2 9
Conference Social Event
6:30 pm
Boat Dock
Our conference social on Wednesday evening will
take us on a magical tour of the architecture along
the Chicago River. While we enjoy our box salad or
sandwich dinners, the captain will give a running nar-
ration of all of the fascinating sites we are passing.
Our evening will culminate out on the Lake with a
front-row view of the fireworks at Navy Pier.
Meet at the dock by 6:30 pm so you don’t miss the
boat! The dock is 3 blocks east of the hotel – just
past Michigan Avenue – on the north side of Wacker
Drive. See http://www.cruisechicago.com/directions.
php for a map.
Tickets for this event are available for conference
attendees, companions, and families, but should be
purchased prior to the conference.
T h u r s d a y, J u n e 3 0
Conference Banquet
6:30 pm
Grand Ballroom Foyer
Conference attendees and companions are invited
to enjoy the Conference Banquet, scheduled to take
place beginning with a cocktail hour at 6: 30 pm
Thursday evening in the Grand Ballroom Foyer.
Tickets are included in the full Conference registra-
tion. Additional tickets for students and companions
are available for purchase until Monday morning.
C o m p a n I o n p r o G r a m
A varied and reasonably-priced set of trips and activi-
ties is planned for SCCM11 companions. Compan-
ions interested in these activities should have already
signed up for these activities. There may be limited
space available on these tours at the conference reg-
istration on Sunday, June 26th. Although participa-
tion in these activities is not limited to companions
who register, registration provides 1) the Registration
Social, 2) Companions’ Kick-off Breakfast, 3) name
badge on lanyard, and 4) a conference bag. Questions
or concerns may be emailed to apscompanions@com-
cast.net prior to the Conference.
M o n d a y, J u n e 2 7
Companions’ Kick-off Breakfast
8:00 am
Gold Coast
Registered companions are cordially invited to gather
in the Michigan at 08:00 for a light breakfast, conver-
sation and an information session. The Companions’
Kick-off Breakfast is an excellent chance to get ac-
quainted/ reacquainted with your fellow companions
attending this meeting.
Chicago Trolley and Double Decker
We’re purchasing three day group tickets for the
Chicago Trolley and Double Decker Co. tours. The
tickets are good for three days of Chicago sightsee-
ing and transportation. Meet up at the Companion
breakfast to get your tickets and find a group to travel
with. Additional information about the Chicago Trol-
ley and Double Decker can be found at https://www.
T u e s d a y, J u n e 2 8
Companion Tour
(capacity: 56 people)
On Tuesday morning, we will head off early to the
Chicago Botanic Garden. This all-day tour includes
transportation, beverages, entrance fee and lunch.
The Chicago Botanic Garden is world-renowned for
its beauty and variety. It is an amazing gem to visit so
close to Chicago.
S H O C K M E E T I N G 2 0 1 1 9
C o n f e r e n C e o r G a n I z e r S
John Borg, Marquette University
Jennifer Jordan, Air Force Research Laboratory
Tracy Vogler, Sandia National Laboratories
Sunil Dwivedi, University of Florida
Poster Session Chairs:
Nicola Bonora, Univesity of Cassino, Italy
Eric Herbold, Lawrence Livermore National
Publications Chairs:
Mark Elert, United States Naval Academy
(Proceedings) William Buttler, Los Alamos
National Laboratory
International Advisor:
Tony Zocher, Los Alamos National Laboratory
Student Outreach:
Dana Dattelbaum, Los Alamos National Lab
Mike Hopson, NSWC - Dahlgren
Companion Program Chair:
Linn Furnish
t e C h n I C a l p r o G r a m
C o m m I t t e e
BG: Biological Materials
Horacio Espinosa, Northwestern University
BL: Ballistic Studies
David Lambert, Air Force Research Laboratory
Clive Siviour, Oxford University
CP: Polymers and Composites
Joel Carney, NSWC – Indian Head
DC: Detonations and Shock-Induced Chemistry
Elizabeth Glascoe, Lawrence Livermore National
ED: Experimental Developments
Tom Ao, Sandia National Laboratories
Fabrice Llorca, CEA
Kathy Prestridge, Los Alamos National
Gilles Roy, CEA
EM: Energetic Materials
Dan Hooks, Los Alamos National Laboratory
Richard Lee, NSWC – Indian Head
EOS: Equation of State
Lorin Benedict, Lawrence Livermore National
GS: Geophysics and Planetary Science
Kanani Lee, Yale University
Seiji Sugita, University of Tokyo
HD: High Energy Density Physics & Warm
Dense Matter
Michael Dejarlais, Sandia National Laboratories
ID: Inelastic Deformation, Fracture and Spall
Daniel Casem, Army Research Laboratory
Thibaut de Resseguier, Futuroscope
MD: First-Principles and Molecular Dynamics
Ivan Oleynik, University of South Florida
MS: Materials Science
Ellen Cerreta, Los Alamos National Laboratory
PC: Physics and Chemistry at High Pressure
Choong-Shik Yoo, Washington State University
PM: Particulate and Porous Materials
William Cooper, Air Force Research Laboratory
PS: Phase Transitions
Geoff Cox, AWE
SO: Spectroscopy and Optical Studies
Evan Reed, Stanford University
TUR: Special Session on Turbulence at the Meso
and Macro Scales
Su Peiris, Defense Threat Reduction Agency
D. Scott Stewart, University of Illinois
HPS: Focus Session on High Pressure Strength
James Asay, Sandia National Laboratories
G.T. Rusty Gray, Los Alamos National Laboratory
Adam Schwartz, Lawrence Livermore National
Russ Hemley, Carnegie Institute of Washington
It is not possible to acknowledge here all of the others
who have contributed to SCCM11, but the Confer-
ence would not be possible without them.
G S C C m o f f I C e r S f o r 2 0 1 1
Neil Bourne, AWE
Dana Dattelbaum, Los Alamos National Laboratory
Vice Chair:
Tracy Vogler, Sandia National Laboratories
David Moore, Los Alamos National Laboratory
Secretary / Treasurer:
Michael Furnish, Sandia National Laboratories
E. Ray Lemar, Naval Surface Warfare Center
Executive Committee:
Ellen Cerreta, Los Alamos National Laboratory
Daniel Eakins, Imperial College London
Elizabeth Glascoe, Lawrence Livermore National
Su Peiris, Defense Threat Reduction Agency
Award Committee Chair:
Su Peiris, Defense Threat Reduction Agency APS
1 0 S H O C K M E E T I N G 2 0 1 1
S u m m a r y o f e v e n t S
SCCM Business Meeting
We dne s day, J une 29 12:30 pm
Renaissance D
A light lunch will be provided for business meeting
Advanced Photon Source Tour
Tue s day, J une 28
Meet in the Hotel Lobby. Buses will begin loading at
12:45 and depart at 1:15. They will return between 5
and 6 pm.
S o C I a l p r o G r a m S u m m a r y
Welcome Reception
Sunday, J une 26 6:00 pm – 8:00 pm
Chicago Skyline Terrace
Continental Breakfast
Monday – Fr i day 7:15 am – 8:00 am
Grand Ballroom Foyer
First Lady of Chicago Cruise and Dinner
Wednes day, June 29 6:30 pm – 10:00 pm
Conference Banquet
Thur s day, J une 30 6:30 pm – 10:00 pm
Grand Ballroom and Foyer
C o m p a n I o n p r o G r a m S u m m a r y
Companions’ Kick-off Breakfast
Monday, J une 27 8:00 am – 9:00 am
Gold Coast
Chicago Trolley and Double Decker Tour
Monday, J une 27 9:00 am
r e G I S t r a t I o n h o u r S
Burnham Office
Sunday, June 26 .......................4:00 pm – 8:00 pm
Monday, June 27 .....................7:00 am – 5:00 pm
Tuesday, June 28 .....................7:30 am – 11:00 am
Wednesday, June 29 ................7:30 am – 5:00 pm
Thursday, June 30 ...................7:30 am – 3:30 pm
S p e a k e r - r e a d y r o o m h o u r S
Sunday, June 26 ......................4:00 pm – 6:00 pm
Monday, June 27 .....................7:30 pm – 9:00 pm
Tuesday, June 28 .....................5:30 pm – 7:30 pm
Wednesday, June 29 ................5:30 pm – 7:30 pm
Thursday, June 30 ...................5:30 pm – 7:30 pm
S H O C K M E E T I N G 2 0 1 1 1 1
BG: Biological Materials Bl: Ballistic Studies Cp: Polymers and Composites dC: Detonations and Shock-Induced Chemistry ed: Experimental Developments
em: Energetic Materials eoS: Equation of State GS: Geophysics and Planetary Science hd: High Energy Density Physics and Warm Dense Matter Id: Inelastic Deformation, Fracture and
Spall md: First-Principles and Molecular Dynamics mS: Materials Science pC: Physics and Chemistry at High Pressure pm: Particulate and Porous Materials pS: Phase Transitions So:
Spectroscopy and Optical Studies tur: Turbulence at the Meso and Macro Scales dSm: High Pressure Strength of Materials
Sunday Monday Tuesday Wednesday Thursday Friday
June 26 June 27 June 28 June 29 June 30 July 1
7:15-8:00 am Cont. Breakfast Cont. Breakfast Cont. Breakfast Cont. Breakfast Cont. Breakfast
GBR Foyer GBR Foyer GBR Foyer GBR Foyer GBR Foyer
8:00-9:00 am Plenary Session A1 Plenary Session G1 Plenary Session K1 Plenary Session R1 Plenary Session X1

Companion Breakfast
Gold Coast
9:00-9:15 am Coffee Break Coffee Break Coffee Break Coffee Break Coffee Break
9:15-10:45 am Session B1-B5 Session H1-H6 Session L1-L6 Session S1-S6 Session Y1-Y5
ID1, DC1, MD1, ID3, EM3, MD5, ID5, DC3, MD7 ID9, DC5, HPS3, HPS4, EM9, PM3,
ED1, SO1 GS3, PS3, PM1 TUR1, SO3, BL1 ED3, MS1, EOS1 ED7, CP2
10:45-11:00 am Break Break Break Break Break
11:00 am-12:30 pm Session C1-5 Session J1-J6 Session M1-M6 Session T1-T6 Session Z1-Z5
ID2, DC2, MD2, ID4, EM4, MD6, ID6, DC4, MD8, EM7, DC6, HPS4, HPS7, EM10, PM4,
ED2, SO2 GS4, BG1, PM2 TUR2, HD1, BL2 ED4, MS2, EOS2 EOS5, CP3
12:30-2:00 pm Lunch
(on own)
Free Afternoon Lunch
(on own)
(on own)
SCCM Business Mtg
12:45-6:00 pm Advanced Photon
Source Tour
2:00-3:30 pm Session D2-5 Session P1-P6 Session U1-U6
EM1, MD3, GS1, PS1 ID7, EM5, HPS1, EM8, DC7, MD9,
TUR3, HD2, BL3 ED5, MS3, EOS3
3:30-4:00 pm Snack Break Snack Break Snack Break
4:00-5:30 pm Session E2-E5 Session Q1-Q6 Session V1-V6
EM2, MD4, GS2, PS2 ID8, EM6, HPS2, CP1, HPS5, MD10,
PC1, HD3, BL4 ED6, MS4, EOS4
Evening 6:00-8:00 5:30-7:30 6:00-8:00 6:30-9:00 6:30-7:30
Welcome Reception Poster Session F T. Ahrens Memorial Conference Social Cocktail Hour
Chicago Skyline GBR IV-VI
First Lady of Chicago GBR Foyer
Terrace Bucktown Boat Tour


Conference Banquet
C o n f e r e n C e o v e r v I e w
GBr: Grand Ballroom
12 SHOCK2011
Epitome of SHOCK 2011
27 JUNE 2011
A1 Plenary Session I:Material
Response to Shock/Dynamic
Loading:Windows into
Shock-Induced Processes in
George Gray
Room:Grand Ballroom
27 JUNE 2011
B1 Inelastic Deformation,Fracture,
and Spall I
Gennady I.Kanel
Room:Grand BallroomI-III
B2 Detonations and Shock-Induced
Chemistry I
Room:Grand BallroomIV-VI
B3 First-Principles and Molecular
Dynamics Calculations I:
Metals I
Room:Renaissance BallroomAB
B4 Experimental Developments I
Ryan McBride
Room:Renaissance BallroomC
B5 Spectroscopy and Optical
Studies I
Room:Renaissance BallroomD
27 JUNE 2011
C1 Inelastic Deformation,Fracture,
and Spall II
Room:Grand BallroomI-III
C2 Detonations and Shock-Induced
Chemistry II
Mario Fajardo
Room:Grand BallroomIV-VI
C3 First-Principles and Molecular
Dynamics Calculations II:
Phase Transitions
Room:Renaissance BallroomAB
C4 Experimental Developments II
Room:Renaissance BallroomC
C5 Spectroscopy and Optical
Studies II
Damian Swift
Room:Renaissance BallroomD
27 JUNE 2011
D2 Energetic Materials I
Caroline Handley
Room:Grand BallroomIV-VI
D3 First-Principles and Molecular
Dynamics Calculations III:
Energetic Materials I
Room:Renaissance BallroomAB
D4 Geophysics and Planetary
Science I:Vaporization and
Room:Renaissance BallroomC
D5 Phase Transitions I
Gilles Roy
Room:Renaissance BallroomD
27 JUNE 2011
E2 Energetic Materials II
Vitali Nesterenko
Room:Grand BallroomIV-VI
SHOCK2011 13
E3 First-Principles and Molecular
Dynamics Calculations IV:
Equations of State
Room:Renaissance BallroomAB
E4 Geophysics and Planetary
Science II:Giant and
Super-Earth Planets
Dylan Spaulding
Room:Renaissance BallroomC
E5 Phase Transitions II
Joshua Wittenberg
Room:Renaissance BallroomD
27 JUNE 2011
F1 Poster Session (5:30 - 7:30pm)
Room:Grand BallroomI-III
28 JUNE 2011
G1 Plenary Session II:New
Frontiers at the Intersection of
Shock Physics and Planetary
Sarah T.Stewart
Room:Grand Ballroom
28 JUNE 2011
H1 Inelastic Deformation,Fracture,
and Spall III
Vladimir Skripnyak
Room:Grand BallroomII-III
H2 Energetic Materials III
Room:Grand BallroomIV-V
H3 First-Principles and Molecular
Dynamics Calculations V:
Energetic Materials II
Room:Renaissance BallroomAB
H4 Geophysics and Planetary
Science III:Impact Phenomena
Room:Renaissance BallroomC
H5 Phase Transitions III
Eugene Zaretsky
Room:Renaissance BallroomD
H6 Particulate/Porous Materials I:
James M.McNaney
Room:Grand BallroomVI
28 JUNE 2011
J1 Inelastic Deformation,Fracture,
and Spall IV
Mukul Kumar
Room:Grand BallroomII-III
J2 Energetic Materials IV
Room:Grand BallroomIV-V
J3 First-Principles and Molecular
Dynamics Calculations VI:
Metals II
Vasily Zhakhovsky
Room:Renaissance BallroomAB
J4 Geophysics and Planetary
Science IV:TomAhrens
Room:Renaissance BallroomC
J5 Biological Materials
Adrian Lew
Room:Renaissance BallroomD
J6 Particulate/Porous Materials II:
Mesoscale Effects
Room:Grand BallroomVI
29 JUNE 2011
K1 Plenary Session III:Metalized
Heterogeneous Detonation and
Dense Reactive Particle Flow
Fan Zhang
Room:Grand Ballroom
14 SHOCK2011
29 JUNE 2011
L1 Inelastic Deformation,Fracture,
and Spall V
Room:Grand BallroomII-III
L2 Detonations and Shock-Induced
Chemistry III
Room:Grand BallroomIV-V
L3 First-Principles and Molecular
Dynamics Calculations VII:
Multiscale Modeling
Betsy Rice
Room:Renaissance BallroomAB
L4 Post Shock Turbulence I
Room:Renaissance BallroomC
L5 Spectroscopy and Optical
Studies III
Room:Renaissance BallroomD
L6 Ballistics I:Heterogeneous
Rebecca M.Brannon
Room:Grand BallroomVI
29 JUNE 2011
M1 Inelastic Deformation,Fracture,
and Spall VI
Room:Grand BallroomII-III
M2 Detonations and Shock-Induced
Chemistry IV
Evan Reed
Room:Grand BallroomIV-V
M3 First-Principles and Molecular
Dynamics Calculations VIII:
Metals III
Room:Renaissance BallroomAB
M4 Post Shock Turbulence II
Min Zhou
Room:Renaissance BallroomC
M5 High Energy Density
Physics/WarmDense Matter I
Frank Graziani
Room:Renaissance BallroomD
M6 Ballistics II:Experiments and
Room:Grand BallroomVI
29 JUNE 2011
P1 Inelastic Deformation,Fracture,
and Spall VII
John Clayton
Room:Grand BallroomII-III
P2 Energetic Materials V
Room:Grand BallroomIV-V
P3 High Pressure Strength I
Lalit Chhabildas
Room:Renaissance BallroomAB
P4 Post Shock Turbulence III
Room:Renaissance BallroomC
P5 High Energy Density
Physics/WarmDense Matter II
Vladimir Fortov
Room:Renaissance BallroomD
P6 Ballistics III:Strength and
Damage Models
Room:Grand BallroomVI
29 JUNE 2011
Q1 Inelastic Deformation,Fracture,
and Spall VIII
Room:Grand BallroomII-III
Q2 Energetic Materials VI
Room:Grand BallroomIV-V
Q3 High Pressure Strength II
Sebastien Merkel
Room:Renaissance BallroomAB
SHOCK2011 15
Q4 Physics and Chemistry at High
Pressure:Static and Low Rate
William Evans
Room:Renaissance BallroomC
Q5 High Energy Density
Physics/WarmDense Matter III
Alessandra Benuzzi Mounaix
Room:Renaissance BallroomD
Q6 Ballistics IV:Armors and
Room:Grand BallroomVI
30 JUNE 2011
R1 Plenary Session IV:The Role of
Gibbs Function in the Solid-Solid
Phase Transformations Under
Nonhydrostatic Stress
James N.Johnson
Room:Grand Ballroom
30 JUNE 2011
S1 Inelastic Deformation,Fracture,
and Spall IX
Room:Grand BallroomII-III
S2 Detonations and Shock-Induced
Chemistry V
Room:Grand BallroomIV-V
S3 High Pressure Strength III
Athanasios Arsenlis
Room:Renaissance BallroomAB
S4 Experimental Developments III
Paulius Grivickas
Room:Renaissance BallroomC
S5 Materials Science I
Darcie Dennis-Koller
Room:Renaissance BallroomD
S6 Equation of State I
Room:Grand BallroomVI
30 JUNE 2011
T1 Energetic Materials VII
Dana Dattelbaum
Room:Grand BallroomII-III
T2 Detonations and Shock-Induced
Chemistry VI
Shawn McGrane
Room:Grand BallroomIV-V
T3 High Pressure Strength IV
William Reinhart
Room:Renaissance BallroomAB
T4 Experimental Developments IV
Room:Renaissance BallroomC
T5 Materials Science II
Room:Renaissance BallroomD
T6 Equation of State II
Room:Grand BallroomVI
30 JUNE 2011
U1 Energetic Materials VIII
Room:Grand BallroomII-III
U2 Detonations and Shock-Induced
Chemistry VII
Joe Hooper
Room:Grand BallroomIV-V
U3 First-Principles and Molecular
Dynamics Calculations IX:
Energetic Materials III
Room:Renaissance BallroomAB
U4 Experimental Developments V
Michael Furlanetto
Room:Renaissance BallroomC
U5 Materials Science III
Room:Renaissance BallroomD
16 SHOCK2011
U6 Equation of State III
Room:Grand BallroomVI
30 JUNE 2011
V1 Composites and Polymers I:
Mechanics of PBXs
Room:Grand BallroomII-III
V2 High Pressure Strength V
Room:Grand BallroomIV-V
V3 First-Principles and Molecular
Dynamics Calculations X:
Metals IV
Room:Renaissance BallroomAB
V4 Experimental Developments VI
Room:Renaissance BallroomC
V5 Materials Science IV
Room:Renaissance BallroomD
V6 Equation of State IV
John H.Carpenter
Room:Grand BallroomVI
01 JULY 2011
X1 Plenary Session V:Megaamps,
Megagauss,and Megabars:
Using the Sandia Z Machine to
PerformExtreme Material
Dynamics Experiments
Marcus Knudson
Room:Grand Ballroom
01 JULY 2011
Y1 High Pressure Strength VI
Room:Grand BallroomI-III
Y2 Energetic Materials IX
Jun Chen
Room:Grand BallroomIV-VI
Y3 Particulate/Porous Materials III:
Theoretical and Computational
Room:Renaissance BallroomAB
Y4 Experimental Developments VII
Room:Renaissance BallroomC
Y5 Composites and Polymers II:
John Harrigan
Room:Renaissance BallroomD
01 JULY 2011
Z1 High Pressure Strength VII
Room:Grand BallroomI-III
Z2 Energetic Materials X
Room:Grand BallroomIV-VI
Z3 Particulate/Porous Materials IV:
Room:Renaissance BallroomAB
Z4 Equation of State V
Room:Renaissance BallroomC
Z5 Composites and Polymers III:
Room:Renaissance BallroomD
SHOCK2011:Session B1 17
Monday Morning,27 June 2011;Room:Grand Ballroomat 8:00;John Borg,Marquette University,presiding
Invited Papers
A1 1 Material Response to Shock/Dynamic Loading:Windows into Shock-Induced Processes in Materials
GEORGE GRAY,Los Alamos National Laboratory
While the field of shock-wave physics has provided significant insights into many of the processes related to wave
propagation in materials,the exact operative micromechanisms of defect generation occurring during the shock and
thereafter those controlling defect storage and damage evolution remain incompletely understood and poorly modeled.
Attainment of a truly predictive capability to enable accurate simulations of dynamic impact,shock,and high-rate loading
phenomena applications requires a linked experimental,modeling,and validation research program.Accordingly,the
derivation of physically-based materials models is only achieved via close collaboration between experimentalists and
modelers.In this talk an overview of the microstructural mechanisms affecting the strength of materials at high pressure
and strain rates as well as the processes controlling damage evolution during shock loading will be reviewed.I shall discuss
the challenges and opportunities for the development of physically-based models of shock-wave effects on materials.The
need for models across multiple length scales and using both “real-time” and post-mortem materials characterization
techniques will be discussed.The spectrum of physical phenomena and the potential nation-wide experimental facilities
poised to study them is discussed.In addition,the limitations and caveats involved in using only velocimetry,single-
pass radiography,and/or shock recovery alone to elucidate the 3-D aspects of defect generation,storage,and recovery
will be examined in detail.Examples of how both “real-time” and post-mortem experimental approaches are needed to
quantify dislocation/defect generation,shock-induced phase transitions,and damage evolution and spallation will be
Monday Morning,27 June 2011
Room:Grand BallroomI-III at 9:15
Andy Tonge,Johns Hopkins University,presiding
Contributed Papers
B1 1 Plastic Behavior of Polycrystalline Tantalum in
the 5×10
COLLINS,JEFF FLORANDO,Lawrence Livermore National Lab
The goal of this experiment is to investigate the plastic response
of Tantalum to dynamic loading at high strain rates.The samples
used were derived from high purity rolled plate,polished down to
thicknesses in the range 25 – 100 microns.Dynamic loading was
applied by direct laser ablation of the sample,with pulses up to
10 ns long,at the Jupiter Laser Facility.The elastic-plastic wave
structure was measured using two line VISAR systems of differ-
ent sensitivity,and strain rates were inferred from the rise time of
the waves.The elastic wave amplitudes indicated flow stresses be-
tween 2 and 3 GPa,depending on the sample thickness.Samples
were recovered for post-shot metallographic analysis.This work
was performed under the auspices of the U.S.Department of En-
ergy by Lawrence Livermore National Laboratory under Contract
B1 2 Investigating strain rate effect on damage evolution in
NICOLABONORA,University of Cassino,Italy In ductile metals
subjected to dynamic loading and shock compression damage pro-
cesses kinetics depends onstrainrate,pressure (i.e.stress triaxiality)
and temperature.Understanding the complex implications of these
effects on damage evolution requires experiments in which these
effects can be separated.Several experimental techniques to mea-
sure ductile damage,based on the quantification of the detrimental
effects on the macroscopic materials properties,are available.At
lowstrain rate,isothermal tests on constant stress triaxiality sample
geometries can be designed and performed.At high strain rates,
as a result of quasi-adiabatic loading conditions,strain rate and
temperature effects cannot be controlled separately.In this work,
the Zener-Hollomon parameter is used to design equivalent high
strain rate testing conditions for ductile damage measurement in
high purity copper.The proposed approach is validated predicting
material behavior and ductile failure conditions in split Hopkinson
pressure bar tests.The effect of the initial material grain size has
been also investigated.
B1 3 Shear stress relaxation in silver over 300 - 1233 K tem-
perature range EUGENE ZARETSKY,Ben-Gurion University
of the Negev GUENNADY KANEL,United IVTAN Evolution of
the elastic-plastic shock waves in 99.9-% purity silver samples of
0.127 to 2.0-mm thickness,having initial temperature varied from
300 to 1233 K have been recorded with VISAR.The free surface
velocity histories at roomtemperature and at 773 Kdo not showany
distinct step at the front of the elastic precursor wave which looks
like gradual velocity increase fromzero value.Starting from933 K
the waveforms clearly exhibit finite HEL whose value grows with
temperature and decreases with sample thickness.The decay of the
elastic precursor wave at 933,1173,and 1233 Kis nearly inversely
proportional to the square root fromthe propagation distance.This
corresponds to the cubic dependence of the initial plastic strain rate
on the shear stress at HEL.The flowstresses at the fixed strain rates
display non linear temperature dependences while the plastic strain
rates estimated from the plastic wave rise times are of an order
of magnitude higher than those at HEL.Such behavior cannot be
18 SHOCK2011:Session B2
explained only by dislocation drag controlled by the phonon fric-
tion.The results are discussed in terms of motion and multiplica-
tions of dislocations.
B1 4 The Resistance to Deformation and Facture of Magne-
sium MA2-1 Under Shock-Wave Loading at 293 K and 823
K of the Temperature GENNADY GARKUSHIN,Institute of
Problems of Chemical Physics RAS,Chernogolovka,142432 Rus-
sia GENNADY KANEL,Joint Institute for High Temperatures
RAS,Moscow,125412 Russia SERGEY RAZORENOV,Institute
of Problems of Chemical Physics RAS,Chernogolovka,142432
Russia The spall strength and elastic-plastic response have been
measured with the VISARfor MA2-1 (94.2%Mg,0.4 %Mn,4.4%
Al,1%Zn) alloy at temperatures from293 Kto 823 K.The decay of
elastic precursor wave at 293 Kis approximately in reverse propor-
tionality with the cubic root from the distance that corresponds to
decrease of plastic strain rate from5×10
at 0.25 mm(213 MPa
of the shear stress) down to 5×10
at 10 mm (63 MPa shear
stress).An analysis of the rise times of plastic shock waves shows
by order of magnitude faster plastic strain rates at corresponding
shear stresses than that at the HEL.The decay of elastic precursor
wave is weaker and the dependence of initial plastic strain rate on
the shear stress at HEL is stronger than that was observed for alu-
minum.Unlike to aluminum,the magnesiumalloy does not exhibit
anomalous thermal hardening:the HEL values at 823 K are close
to the values at roomtemperatures.The temperature increase from
293 Kto 823 Khas led to significant decrease of the spall strength.
Invited Papers
B1 5 Rate and temperature effects on the flow stress and tensile strength of metals
GENNADY I.KANEL,Joint Institute for High Temperatures of Russian Academy of Sciences
Some new and obtained earlier experimental data on the elastic precursor decay and rise times of plastic shock waves
in several metals and alloys at normal and elevated temperatures are systematized.The data on precursor decay include
last measurements at micron and submicron distances where realized shear stresses are comparable with their ultimate
(“ideal”) values.Results of measurements have been transformed into dependences of plastic strain rate on the shear
stress.It has been found the precursor decay may occur in several regimes which are characterized by different decay
rates.Anomalous growth of the Hugoniot elastic limit with heating correlates with a fast decay regime and is not observed
when the decay is relatively slow.An analysis of the rise times of plastic shock waves shows by order of magnitude
faster plastic strain rates at corresponding shear stresses than that at the HEL.Results of measurements of the resistance
to high-rate fracture (“spall strength”) show gradual increase of the later with increasing rate of tension and approaching
the “ideal” strength in a picosecond time range.The spall strength usually decreases with heating although in less degree
than the strength at low strain rates does.In general,the temperature dependences of the spall strength do not correlate
with dependences of the yield stress that points on larger contribution of the fracture nucleation processes as compared to
the void growth.Requirements to constitutive models for high-rate plastic deformation and fracture are formulated on the
base of experimental observations.
Monday Morning,27 June 2011
Room:Grand BallroomIV-VI at 9:15
Larry Hill,Los Alamos National Laboratory,presiding
Contributed Papers
B2 1 Experimental and Numerical Investigation of a Pyrotech-
nic Mixture Under aCylindricallyConvergingShockCondition
C.BUTLER,USAF- Wright Labs This research builds on Forbes
et al.(1997) study of inducing a rapid solid state reaction in a highly
porous core using a converging cylindrical shock driven by a high
explosive in the annular space.Using high speed photography and
photon doppler velocimetry (PDV),the expansion velocity of the
cylinder outer wall provides a comparison to the baseline high ex-
plosive core and the pyrotechnic cores.The CTHhydrocode model
analysis of the case expansion and fluid velocities indicated that the
outer case expansion velocity differs according to the formulation
in the core and that the core materials are responding similarly to
the baseline high explosive core.
B2 2 Shock Compression of Formic Acid VIRGINIA MAN-
ENGELKE,DAVID STAHL,Los Alamos National Labora-
molecules such as formic acid,HCOOH,have been suggested to
play important roles in the origin of life due to their high pressure
and temperature chemistry.The hydrogen bonding characteristics
and polymerization of HCOOH under high pressure have been re-
cently investigated using both molecular dynamics calculations and
experimental work.These works suggest that symmetric hydrogen
bonding of HCOOH(forming a linear chain polymer where all C-O
bonds are equivalent) occurs at 16 - 21 GPa at room temperature.
In order to examine the shock compression behavior of this simple
carboxylic acid,we present a series of gas gun-driven plate im-
pact experiments on formic acid with shock inputs in the range of
10 - 20 GPa,overlapping in pressure with the earlier static exper-
imental results.Using in-situ electromagnetic gauges,shock wave
profiles (particle velocities) were measured at multiple Lagrangian
positions as a function of shock input pressure,providing valuable
information about its unreacted equation of state and shock-induced
chemical reactions.The results are discussed in the context of the
Hugoniot conditions,phase diagram and static high-pressure be-
havior,and related chemistry of other simple hydroxyl-/carboxyl-
containing molecules.
SHOCK2011:Session B3 19
B2 3 Experimental determination of detonation parameters of
explosives based on ammoniumnitrate ALEXANDER UTKIN,
problems of chemical physics RAS Laser interferometer VISAR
was used for investigation of the reaction zone structure and de-
termination of detonation parameters in two different kinds of ex-
plosives based on ammonium nitrate:emulsion explosives (EE)
and composite explosives with plastic binder (CE).The influence
of ammonium particle size,structure and diameter size of explo-
sive charge on the detonation velocity and distribution of parame-
ters inside the reaction zone has been investigated.It was found
that detonation front of EE and CE is not smooth and a typi-
cal size of oscillations is determined by initial heterogeneity of
explosives.Averaged profile of particle velocity fits with clas-
sic model of detonation and strongly pronounced Von Neumann
spike is observed.Spike parameters are approximately 1.2 times
greater than C-J parameters.The reaction time is order of mi-
crosecond.The detonation velocity of investigated explosives with
initial density 1.1 g/cm
was changed from 4.5 to 5.0 km/s for
EE and from 4.0 to 4.5 km/s for CE.The influence of aluminium
and iron oxide additions on the detonation properties of CE was
B2 4 Chemistry Resolved Kinetic Flow Modeling of TATB
LLNL Detonation waves in insensitive,TATB based explosives
are believed to have multi-time scale regimes.The initial burn
rate of such explosives has a sub-microsecond time scale.How-
ever,significant late-time slow release in energy is believed to
occur due to diffusion limited growth of carbon.In the interme-
diate time scale concentrations of product species likely change
from being in equilibrium to being kinetic rate controlled.We
use the thermo-chemical code CHEETAH linked to ALE hydro-
dynamics codes to model detonations.We term our model chem-
istry resolved kinetic flowas CHEETAHtracks the time dependent
concentrations of individual species in the detonation wave and
calculate EOS values based on the concentrations.A validation
suite of model simulations compared to recent high fidelity metal
push experiments at ambient and cold temperatures has been de-
veloped.We present here a study of multi-time scale kinetic rate
effects for these experiments.Prepared by LLNL under Contract
B2 5 Experimental Measurements of the Chemical Reaction
Zone of TATBand HMXbased explosives VIVIANE BOUYER,
TERZULLI,CEA,DAM,Le Ripault,F-37260,Monts,France In
order to have an insight into the chemical reaction zone of explo-
sives,experimental measurement of the detonation wave profile of
solid explosives using laser velocimetry techniques are performed.
The experiments consist in initiating a detonation wave in a cylin-
der of explosive using an explosive wire detonator and an explosive
booster and measuring the particle velocity of an explosive-window
interface or free surface velocity of an accelerated foil.Two ex-
plosives (TATB based and TATB-HMX based) have been studied
through several configurations where the cylinder diameter and
windowor plate material could vary.Particle velocity profiles have
been measured by VISAR and Heterodyne Velocimetry (HV).The
results on the behavior of the explosives have been analyzed and
compared with those of Photon Doppler Velocimetry of expand-
ing species experiments.These experiments also enabled to carry
on the comparison of the efficiency of VISAR and HV in such
B2 6 Modeling Detonation in Ultrafine TATB Hemispherical
dermaston Hemispherical ultrafine TATB boosters are often used
to initiate detonation in the TATB-based explosive LX-17.For ac-
curate hydrocode predictions of experiments using this combina-
tion of explosives,it is important to accurately model the deto-
nation wave emerging from the booster material since this may
influence the detonation behaviour in the main charge.Since ul-
trafine TATBexhibits non-ideal detonation behaviour,it’s response
should be modeled using reactive flow.In this paper,the CREST
reactive burn model,which uses entropy-dependent reaction rates
to simulate explosive behaviour,is applied to experimental data
obtained from ultrafine TATB hemispherical boosters initiated by
slapper detonators at three initial temperatures (ambient,−20 degC
and −54 degC).The ambient temperature data is used to develop
an initial CREST model for ultrafine TATB which is then sub-
sequently applied to the cold data.A comparison of the experi-
mental and modeling results is presented showing that the model
gives good agreement to experiment at both ambient and cold
Monday Morning,27 June 2011
Room:Renaissance BallroomAB at 9:15
Timothy Germann,Los Alamos National Laboratory,
Contributed Papers
B3 1 MD simulations of laser-induced ultrashort shock
ZHAKHOVSKY,University of South Florida NAILINOGAMOV,
Landau Institute for Theoretical Physics CARTER WHITE,Naval
Research Laboratory The dynamics of ultrashort shock waves in-
duced by femtosecond laser pulses were explored in micron-sized
nickel films by molecular dynamics simulations.Ultrafast laser
heating causes stress-confinement,which is characterized by for-
mation of a strongly pressurized 100-nm-thick zone just below the
surface of the film.For lowintensity laser pulses,only a single elas-
tic shock wave was formed despite pressures several times greater
than the experimental Hugoniot elastic limit.Since the material
remains uniaxially compressed for less than 50 ps,comparatively
slow processes of dislocation formation are not activated by the
elastic shock wave.For high intensity laser pulses,the process of
double wave breaking was observed with formation of a leading
elastic shock preceding that of the plastic shock wave.Presence of
a trailing rarefaction wave acts to attenuate the plastic shock until it
disappears completely.The mechanisms of plastic deformation in
the plastic front will be discussed.Agreement between the experi-
mental and simulated plastic branch of the Hugoniot was facilitated
20 SHOCK2011:Session B3
by a newEAMpotential designed to simulate nickel in a wide range
of pressures.
B3 2 Atomistic simulation of laser ablation of gold:the ef-
fects of electronic pressure VLADIMIRSTEGAILOV,SERGEY
STARIKOV,GENRI NORMAN,Joint Institute for High Temper-
atures Russian Academy of Sciences In this work we study the
ablation of gold foils irradiated by femtosecond laser pulses.We
build an atomistic model of gold that capture electron heat conduc-
tivity,electron-ion energy transfer and the raise of the electronic
pressure after energy deposition.The latter is done by means of
the EAM potential for gold that parametrically depends on the
electron temperature.The electronic pressure effects are shown
to play an important role in the ablation processes and result
in a new ablation mechanism observed in our simulations.The
thickness of the ablation layer as a function of the irradiation flu-
ence is calculated and compared with the experimental data.It is
argued that the new ablation mechanism observed in this work
can explain the known experimental discrepancies on the ablation
Invited Papers
B3 3 Spallation in metallic systems:Effects of microstructure,and loading pulse shape,rate and orientation

S.N.LUO,Los Alamos National Laboratory
The dynamic nature of spallation and the ubiquitous presence of microstructure may give rise to significant dependences
on microstructure and loading,as indicated by indirect experimental observations.We present systematic,direct molecular
dynamics (MD) simulations of spallation in metallic systems represented by Cu and a CuZr glass.The “microstructure”
includes various defects in Cu,porous Cu,atomic-level inhomogeneities in the CuZr glass,and the Cu crystal−CuZr glass
interfaces.We explore supported and decaying shock loading pulses,as well as different loading orientations.Tensile
loading rates are changed via varying the flyer and target thicknesses in shock simulations,and more significantly (down to
),with accelerated MDsimulations of single-void growth in Cu (mimicking shock).Our direct simulations reveal
strong dependences of spallation on microstructure and loading,and quantitative dynamics of void nucleation/growth as
well as mechanisms for plasticity,void nucleation and their interactions in the absence or presence of defects or interfaces.
The future task of incorporating statistically the microstructure effects and their rate dependences into analytic models is
of great interest to shock physics but a challenge.

Work done in collaboration with T.C.Germann,D.Perez,Q.An,B.Arman,W.Z.Han,D.L.Tonks,J.E.Hammerberg,
A.F.Voter,Los Alamos National Laboratory;W.A.Goddard III,Caltech;and T.Cagin,Texas A&MUniversity.
Contributed Papers
B3 4 Investigation of laser shock induced ductile damage at
ultra-high strain rate by using large scale MD simulations
BOUSTIE,Institut Pprime - UPR CNRS 3346 LAURENT
Metiers JO
DERESSEGUIER,Institut Pprime - UPRCNRS3346 Laser driven
shocks allow to investigate materials behavior at very high strain
rate (10
) and presents a great interest for research applications.
Microscopic simulations of ultra-short laser driven shock on mi-
crometric Tantalum single-crystals have been performed by using
the CEA-DAMClassical Molecular Dynamics code.This method,
complementary to continuummodels,provides an analysis the mi-
croscopic processes related to damage (ductile pore nucleation and
growth) which occurs during spallation.This results are compared
to spallation experiments data (VISARsignals,micro-tomography)
obtained with the LULI100TWfemtosecond laser in order to vali-
date the MDbehavior.Moreover,in the framework of a multi-scale
approach,we show the possibility to use MD simulation to fit
macroscopic damage models.This method is illustrated with an
application to the parameters determination of the Kanel criterion.
This also shows the high strain rates involved during damage pro-
cess,around 10
,allow to approach the inter-atomic theoretical
cohesion stress threshold.
B3 5 Ab initio study of mechanic,thermodynamic and trans-
port properties of gold after electronic excitation SERGEY
Temperatures of Russian Academy of Sciences The electronic ex-
citation after the femtosecond laser irradiation drastically changes
mechanical and electronic properties of metals.In this work we
calculate,on the example of gold,the effective interatomic poten-
tial in the EAM form that parametrically depends on the electron
temperature.This potential is created by the force matching proce-
dure based on the ab initio data calculated with the VASP package
for the representative sets of atomic structures.The potential is
verified by the recent experimental data.The electronic heat capac-
ity,electronic conductivity and electron-phonon coupling constant
are calculated at the DFT level using plane-wave pseudopoten-
tial approach.The dependence of these properties on the elec-
tron temperature and their deployment together with the newEAM
potential in the two-temperature atomistic model of ablation are
SHOCK2011:Session B4 21
Monday Morning,27 June 2011;Room:Renaissance BallroomC at 9:15;Raymond Smith,Lawrence Livermore National
Invited Papers
B4 1 Radiography of magnetically-driven implosions of initially solid beryllium cylindrical shells for equation-of-
state studies at the Z pulsed-power facility

RYAN MCBRIDE,Sandia National Laboratories
The Z accelerator delivers approximately 4-MV,26-MAelectrical pulses with adjustable current rise times of 100–600 ns,
as well as adjustable pulse waveforms.The magnetic pressure produced is used for various applications,including
magnetically-driven implosions.The Z-Beamlet Laser (ZBL) is a pulsed (0.3–1.5 ns),multi-kJ,TW-class Nd:glass laser
system that provides x-ray radiography capabilities for Z experiments.This talk focuses primarily on the radiography
diagnostic used to study the magnetically-driven implosions of initially solid cylindrical shells (also referred to as “liners”).
Specifically,we discuss the 6.151-keV monochromatic backlighting system and its use in obtaining radiographs of
imploding beryllium (Be) liners.The high transmission efficiency of 6.151-keV photons in Be allowed us to obtain
radiographs with finite transmission throughout the radial extent of the imploding liners.Abel inverting these data,we
have obtained time-resolved measurements of the imploding liner’s density as a function of both axial and radial location
throughout the field of view.These data are allowing us to study magneto-Rayleigh-Taylor (MRT) growth for inertial-
confinement-fusion applications,as well as compression-wave propagation for equation-of-state studies (see talks by R.L.
Lemke and M.R.Martin).Additionally,Z’s pulse-shaping capabilities have enabled us to obtain data for both shock-
and quasi-isentropically-compressed Be.Example data fromMRT,shock-compression,and quasi-isentropic-compression
experiments will be shown.We will also discuss planned upgrades to 25-keV radiography that will allow us to study
materials with opacities beyond that of beryllium.This work was done in collaboration with R.W.Lemke,M.R.Martin,
J.-P.Davis,M.D.Knudson,D.B.Sinars,S.A.Slutz,C.A.Jennings,M.E.Cuneo,D.G.Flicker,and M.C.Herrmann.

Sandia is a multi-programlaboratoryoperatedbySandia Corporation,a Lockheed-Martincompany,for the USDepartment
of Energy’s National Nuclear Security Administration under Contract No.DE-AC04-94AL85000.
Contributed Papers
B4 2 Determination of pressure and density of shocklessly com-
pressed beryllium through x-ray radiography of a magneti-
cally driven cylindrical liner implosion

dia National Laboratory High current,pulsed-power driven liner
implosions can be used to produce extreme pressure states in con-
densed matter for equation of state (EOS) studies.The Zaccelerator
can deliver a current pulse to a cylindrical liner (tubular shell) that
rises to a peak current of ∼20 MA in ∼100 ns;at peak current the
magnetic pressure is ∼28 Mbar on the surface of a liner with radius
0.15 cm.We discuss a semi-empirical technique for obtaining EOS
data for a metallic solid,quasi-isentropically (shocklessly) com-
pressed to multi-megabar pressure,through x-ray radiography of a
high current,magnetically driven,cylindrical liner implosion.Re-
sults are presentedfromexperiments onZinwhicha solidberyllium
(Be) liner is quasi-isentropically compressed by magnetic pressure.
Radiographs of the liner are used in conjunction with hydrody-
namic equations to determine density and pressure on the principal
quasi-isentrope of solid Be to a peak pressure of 2.4 Mbar.

Sandia is a multiprogramlaboratorymanagedandoperatedbySan-
dia Corporation,a wholly owned subsidiary of Lockheed Martin
Company,for the USDepartment of Energy’s National Nuclear Se-
curity Administration under Contract No.DE-ACO4-94AL85000.
B4 3 Determination of Pressure Response From Multi-Frame
Monochromatic X-ray Backlighting

MARCUS KNUDSON,Sandia National Laboratories The shock-
less compression of a cylindrical liner Z-pinch is explored as a
method to obtain high pressure (10’s of Mbar) states while mini-
mizing the entropy production in the target material.Experiments
with beryllium liners on the Z-machine resulted in radiographic
profiles at four different times in the liner’s trajectory.From these
results,we infer the longitudinally and azimuthally averaged ma-
terial density,material pressure,and magnetic pressure along with
their uncertainties.By combining these results with magnetohydro-
dynamic simulation,we obtain a pressure versus density response
in solid berylliumup to 2.4 Mbar.Through the use of synthetic diag-
nostics and simulation we conclude that the pressure versus density
response for material samples in the 10 Mbar range is achievable
on the Z-machine with improved radiographic capability.

Sandia is a multiprogramlaboratorymanagedandoperatedbySan-
dia Corporation,a wholly owned subsidiary of Lockheed Martin
Company,for the USDepartment of Energy’s National Nuclear Se-
curity Administration under Contract No.DE-ACO4-94AL85000.
B4 4 Multiple-shock compression and optical/x-ray diagnos-
tics of diamond in TPa pressure regime

Osaka University GIANLUCA GREGORI,University of Ox-
ford TSUTOMU MASHIMO,Kumamoto University TATSUYA
versity of Oxford MIKAKO MAKITA,DAVID RILEY,Queens
22 SHOCK2011:Session B5
University Belfast We have performed multiple-shock compres-
sion experiments for diamond to TPa pressures.Optical diagnos-
tics observed shock coalescence in the diamond layer and well-
characterized the shocked diamond conditions (P,V,T ).Noncol-
lective x-ray scattering measurements for the shock compressed
diamond have been performed for the first time.The ionized states
of carbon in HED regime is indicated from the inelastic scattering

This work was partially supported by grants for the Core-to-Core
Pro- gramfromthe JSPS,for the GCOEProgramfromthe MEXT,
and the CREST fromthe JST.
B4 5 Shot H3837:Darht’s First Dual-Axis Explosive Exper-
HARSH,LAWRENCE HULL,Los Alamos National Laboratory
Test H3837 was the first explosive shot performed in front of both
flash x-ray axes at the Los Alamos Dual Axis Radiographic Hy-
droTest (DARHT) facility.Executed in November 2009,the shot
was an explosively-driven metal flyer plate in a series of experi-
ments designed to explore equation-of-state properties of shocked
materials.Imaging the initial shock wave traveling through the flyer
plate,DARHT Axis II captured the range of motion fromthe shock
front emergence in the flyer to breakout at the free surface;the Axis
I pulse provided a perpendicular perspective of the shot at a time
coinciding with the third pulse of Axis II.Since the days of the
Manhattan Project,penetrating radiography with multiple frames
from different viewing angles has remained a high-profile goal at
the Laboratory.H3837 is merely the beginning of a bright future
for two-axis penetrating radiography.
Monday Morning,27 June 2011
Room:Renaissance BallroomD at 9:15
Cindy Bolme,Los Alamos National Laboratory,presiding
Contributed Papers
B51Free carrier lifetime reductioninshock-compressedGaAs

DRA GUPTA,Washington State University INSTITUTE FOR
SHOCK PHYSICS TEAM Understanding the changes in dy-
namic carrier properties,including lifetime,are important for op-
eration of gallium arsenide (GaAs) based optoelectronic devices.
Significant carrier lifetime reductions were determined in GaAs:Te,
shock-compressed along [100] to 4 GPa,using time- and spectrally-
resolved photoluminescence (PL) measurements.Lifetime changes
were extracted fromPLsignals extending over five orders of magni-
tude following a short excitation pulse in single event shock exper-
iments.Several time-resolved recombination mechanisms showed
a linear lifetime reduction in marked contrast to earlier hydrostatic
pressure results.The present results suggest that the lifetime reaches
a minimumat the direct-to-indirect band gap transition.

Work supported by DOE/NNSA
B5 2 Self-emission spectroscopy of single crystal quartz MINTA
self-emission spectra of single crystal quartz from200-800 nmun-
der stress up to about 1 Mbar.These spectra show the presence of
several narrow peaks,in contrast to the broad luminescent peaks
more often observed.We hope to use these spectra to elucidate the
phenomena,such as defect formation,occurring during shock.
B5 3 Anisotropic direct-to-indirect band gap transition in
shock- andramp-wave compressedGaAs

P.GRIVICKAS,Y.M.GUPTA,Washington State University Gal-
lium arsenide (GaAs) is an important material for laser diodes,
light emitting devices,and high-speed electronics.Strain-induced
electronic band structure changes affect the performance of multi-
layered GaAs-based devices.In the present work,effects of uniax-
ial strain on the low-temperature photoluminescence of GaAs were
investigated using shock and ramp wave compression along the
[100],[111],and [100] orientations.Uniaxial strain transformed
GaAs from a direct-gap to an indirect-gap semiconductor,dramat-
ically altering its optical properties.Unlike hydrostatic pressure,
uniaxial strain along [111] produces a large splitting of the Lband.
This causes the L-band minimumto plunge downward,resulting in
a novel “L-gap” semiconductor.

Work supported by DOE/NNSA.
B5 4 The elastic-plastic response of metal films subjected to ul-
trafast laser-generated shocks VON WHITLEY,SHAWN MC-
tional Laboratory We have measured the free-surface response of
metal films with nominal thicknesses ranging from500 nmto 8 μm
to shocks generated fromchirped ultrafast lasers.We launch a sin-
gle laser generated stress wave into the metal film,but measure two
stress waves on the free surface separated in time.The two waves
correspond to the elastic and plastic response of the thin metal
films.Using ultrafast dynamic ellipsometry,we have measured the
separation of the elastic and plastic waves to times as short as 20
picoseconds and measured peak elastic free surface velocities as
high as 1.4 km/s in aluminum.We will discuss the experimental
results we have measured for aluminum,copper and other metals.
B5 5 Nitro Stretch Probing of a Single Molecular Layer to Mon-
itor Shock Compression with Picosecond Time-Resolution

DANADLOTT To obtain maximumpossible temporal resolution,
laser-driven shock compression of a molecular monolayer was stud-
ied using vibrational spectroscopy.The stretching transitions of ni-
tro groups bound to aromatic rings was monitored using a nonlinear
coherent infrared spectroscopy termed sum-frequency generation,
which produced high-quality signals from this very thin layer.To
overcome the shock opacity problem,a novel polymer overcoat
method allowed us to make the observation window(witness plate)
a few micrometers thick.The high signal-to-noise ratios (>100:1)
obtained via this spectroscopy allowed us to study detailed behav-
ior of the shocked molecules.To help interpret these vibrational
spectra,additional spectra were obtained under conditions of static
pressures up to 10 GPa and static temperatures up to 1000 C.Con-
sequently,this experiment represents a significant step in resolving
molecular dynamics during shock compression and unloading with
both high spatial and temporal resolution.

Supported by the Stewardship Sciences Academic Alliance Pro-
gramfromthe Carnegie-DOEAlliance Center under grant number
DOE CIW 4-3253-13 and the US Air Force Office of Scientific
Research under award number FAA9550-09-1-0163.
SHOCK2011:Session C1 23
B5 6 Surface chemical reaction of laser ablated aluminumsam-
ple for detonation initiation

ARDIANGOJANI,Seoul National University We explore the evo-
lution of metal plasma generated by high laser irradiances and its
effect on the surrounding air by using shadowgraph images af-
ter laser pulse termination;hence the formation of laser supported
detonation and combustion processes has been investigated.The
essence of the paper is in observing initiation of chemical reac-
tion between ablated aluminum plasma and oxygen from air by
inducing high power laser pulse (>1000 mJ/pulse) and conduct a
quantitative comparison of chemically reactive laser initiated waves
with the classical detonation of exploding aluminum (dust) cloud
in air.Findings in this work may lead to a newmethod of initiating
detonation from metal sample in its bulk form without the need of
mixing nano-particles with oxygen for initiation.

Authors thank the financial support from the National Research
Foundation of Korea (2009,2010).
Monday Morning,27 June 2011
Room:Grand BallroomI-III at 11:00
Geremy Kleiser,Air Force Research Laboratory,presiding
Contributed Papers
C1 1 2D- and 3D-explosive experiments for verification of
spall and shear strengths models for some steels EVGENYKO-
ZLOV,RFNC-VNIITF Presented are new results on the kinetics
of stress relaxation on the elastic and phase precursors in hardened
30KhGSA steel (HRC 35...40),as well as results how parame-
ters of the main plastic wave and spall signals change throughout
wedge samples and semispherical shells.Comparative study of
specificities in the fracture of wedge samples and semispherical
shells of 12Kh18N10T and 30KhGSA steels (HRC 35...40) was
made using optical lever method,multi-channel laser interferom-
etry,mild recovery and calorimetric measurement of converged
shells,their multi-angleshot gamma-tomography;the high-rate and
heavily deformed material was investigated using optical,scan-
ning,and transmission electron microscopy.Mechanisms of the
high-rate developed deformation including issues on localization
of deformation and nocrystallographic flow of crystals are briefly
discussed.I’d like to express gratitude and appreciation to my
co-workers V.I.Tarzhanov,I.V.Telichko,D.G.Pankratov,S.A.
Brichikov,D.S.Boyarnikov,L.P.Brezgina,V.N.Povyshev and
collaborators A.V.Dobromyslov,N.I.Taluts for their contribution
to experimental research.
C1 2 Comparison of Spall Pullback Signals and X-ray Tomog-
raphy Analysis in Copper MARCIE GARD,ROD RUSSELL,
Institute for Advanced Technology ROMY HANNA,Dept of Geo-
logical Sciences - UT Austin STEPHAN BLESS,Institute for Ad-
were conducted on electrolytic tough pitch C110 copper plates.
Flyer plates half the target-plate thickness were launched with a
single-stage compressed-gas gun.Pullback signals were measured
with a photonic Doppler velocimeter (PDV).Spall stresses were
determined and found to be about 1 GPa.In addition,damage on
the spall plane for samples that failed to separate a spall plate was
characterized by x-ray tomography.The paper will include a de-
scription of threshold damage.The threshold for appearance of a
pullback signal corresponded to the initiation of tensile damage,
not formation of a spall separation plane.
C1 3 Spall Response of 1100-O Aluminum CYRIL WILL-
LIAMS,Army Research Laboratory/The Johns Hopkins Univer-
sity DATTA DANDEKAR,Army Research Laboratory KALIAT
RAMESH,The Johns Hopkins University ARL/JHU COLLABO-
RATION Plate impact experiments were conducted to study the
effects of peak shock stress,pulse duration,and loading rate on
the pullback velocity of fully annealed 1100 aluminum.The results
obtained fromthis work showa sharp increase in pullback velocity
with increase in peak shock stress between 4.0 GPa and 8.5 GPa,
followed by a sharp decrease up to 11.5 GPa.However,when the
pulse duration was varied from0.61 μs to 1.55 μs the pullback ve-
locity was observed to decrease and tend towards saturation.This
result is in agreement with the open literature.The key conclusion
fromthis work is that recovery experiments are required to further
probe the deformation mechanisms involved during the increasing
and decreasing portion of the pullback velocity as the peak shock
stress is increased.
C1 4 Expanding cylinder experiments in Cu-2wt%Be STEW-
ARTSTIRK,RONWINTER,AWE Expanding cylinder techniques
are useful methods of investigating dynamic fracture properties
since uniformradial strains are achieved at high strain-rates.Agas-
gun technique to achieve uniform radial expansion of a cylinder is
explored in which the motion of the cylinder is driven by impact
of a plastic projectile upon silastomer rubber that partially fills the
specimen cylinder.Cylinders of age-hardened copper-berylliumal-
loy Cu-2wt%Be (TF00 treatment) have been expanded to failure
at radial strain-rates in the range 1.2 - 5.7 ×10
.The temporal
history of fracture activation is captured using high speed photog-
raphy and modelled using a combined statistics and energy based
fragmentation theory [1].The model is shown to reproduce the
crack dynamics and strain-rate dependence reasonably well.
D.E.Grady,and M.L.Olsen,Int.J.Impact Engng.29,293 (2003).
C1 5 The Effect of Case Fracture on Blast Impulse MICHAEL
HUTCHINSON,AWE,Imperial College The initial velocity of cas-
ing fragments frombombs,shells etc.was first calculated by R.W.
Gurney in 1943.This derivation was based on a reasonable sim-
plification of the casing and gas dynamics.Subsequently,Gurney’s
wartime co-worker,U.Fano,issued a further report on the blast
equivalence of cased explosive charges,i.e.the blast impulse they
deliver as a fraction of the impulse from the same charge uncased.
Fano claimed to have calculated the proportion of kinetic energy
remaining with the explosive gases following energy partition with
the casing.This presentation will show that Fano’s equation for
cased charge blast equivalence is inconsistent with Gurney’s rea-
sonable physical model,as is a further equation by Fisher.The pre-
senter will drawattention to an equation recently published,which
gives similar predictions to that of Fisher,while being consistent
with Gurney’s original derivation.Furthermore,it will be shown
that Gurney’s kinetic energy equation can be combined with G.I.
Taylor’s equation for case fracture strain to provide a casing-gas
energy balance at fracture.This provides for the first time a widely
applicable equation for the blast equivalence of cased charges,de-
24 SHOCK2011:Session C2
pendent only on the relative masses of the casing and explosive
charge and their respective material or energetic properties.Bear-
ing in mind possible experimental shortcomings,predictions are
reasonably in accordance with blast impulse data so far available.
C1 6 Spall strength of sapphire ANDREYSAVINYKH,Institute
of Problems of Chemical Physics RAS,Chernogolovka,142432
Russia GENNADYKANEL,Joint Institute for High Temperatures
of RAS,Moscow,125412 Russia SERGEY RAZORENOV,Insti-
tute of Problems of Chemical Physics RAS,Chernogolovka,142432
Russia The spall strength of c-cut sapphire has been measured as
a function of the load duration and peak stress.In experiments,
the VISAR particle velocity histories at the interface between the
sapphire samples and a water window were recorded.The peak
shock stress varied from 17.3 GPa up to 21.4 GPa that is be-
low the Hugoniot elastic limit but close to it,the load duration
varied from 100-150 ns to 250-300 ns.Within this range mea-
sured values of the spall strength varies from 4.2 to 10.6 GPa.
Results of measurements demonstrate much higher sensitivity of
the spall strength to the strain rate than that for metals and a trend
to its decrease with the increasing peak stress.Development of
any inelastic deformation leads to complete loss of the resistance
to tension in the domain of a sapphire sample where these pro-
cesses occurred.The complex of experimental observations leads
to conclusion that the damage nuclei may appear in sapphire under
both uniaxial compression and following tension and the expecta-
tion time decreases with increasing both compressive and tensile
Monday Morning,27 June 2011;Room:Grand BallroomIV-VI at 11:00;Alex Tappan,Sandia National Laboratories,presiding
Invited Papers
C2 1 Benchtop Energetics Progress

MARIO FAJARDO,US Air Force Research Lab
We have constructed an apparatus for investigating the reactive chemical dynamics of mg-scale energetic materials samples.
We seek to advance the understanding of the reaction kinetics of energetic materials,and of the chemical influences on
energetic materials sensitivity.We employ direct laser irradiation,and indirect laser-driven shock,techniques to initiate
thin-film explosive samples contained in a high-vacuum chamber.Expansion of the reacting flow into vacuum quenches
the chemistry and preserves reaction intermediates for interrogation via time-of-flight mass spectrometry (TOFMS).By
rastering the sample coupon through the fixed laser beamfocus,we generate hundreds of repetitive energetic events in a few
minutes.Adetonation wave passing through an organic explosive,such as pentaerythritol tetranitrate (PETN,C