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Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
1

of
8

INSTRUCTOR:

Ron Rooks
, P.E.



CONTACT:

(509) 527
-
3655




ronald.rooks@wwcc.edu


OFFICE:

1110 (Technology Center)



Hours
:
9
:30 am to
10
:20
am

MWF


________________________________
________________________________
_______________


TYPE OF COURSE:

The
course consists of
lectures, assignments, examinations, and
problem solving

activities
.

CREDIT HOURS:

5

(
5
1

lecture

hours
)

PREREQUISITES:

ENGR& 214 Statics

COURSE DESCRIPTION:

This course is designed to instruct the fundamental

principles of
internal stress, deflections, and deformation of structural
members
.


This course is intended for baccalaureate transfer. One cannot
simultaneously earn credit for CET 222 Engineering Mechanics
-

Strength of Materials.

COURSE OBJECTIVES:

Up
on completion of this course, the student will

be able to use
and understand the basic concepts of the following
:



B
ending stress



S
hear stress



C
ompressive and tensile stresses



S
tress
-
strain relationships




Mohr's circle



S
hear and moment diagrams


REFERENCE

TEXT:

Statics and Mechanics of Materials
,
Current

Edition by
Beer,
Johnston, DeWolf, and Mazurek

OTHER

MATERIALS:



The following materials are required
for th
is

course
:



Engineering
computation
paper, straight edge,
engineer scale,
protractor, pencil
, and

eraser



Scientific
Calculator (
with
trigo
no
metric
, radian, and root
f
unction

capability

at minimum
)

Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
2

of
8

PORTFOLIOS
:

Assignments
should

be organized in a portfolio

as a professional
practice. Recommendations for doing so are provided in
“PORT
FOLIO GUIDELINES”
that follow.

EVALUATION SUMMARY:

Evaluation of the student’s final grade will be based upon the
following components and their assigned proportion. See “FINAL
GRADE” below for final grade.

Component

Total Points

Homework:


3
50

Chapter Examinations:


5
00

Final Examination:


1
50

TOTAL:

1000



Attendance Bonus:


30




Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
3

of
8

WEEK

DATE

CHAPTER

LECTURE SCHEDULE **

HOMEWORK

No.

Exercises Due

1

2
-
Jan

8

INTRODUCTION; STRESS CONCEPTS





3
-
Jan



axial loading; normal, shear, & bearing stress





4
-
Jan



analysis application, design

8.1

8.1, 8.4, 8.6, 8.10

2

7
-
Jan



oblique planes, components, safety factors

8.2

8.13, 8.16, 8.17, 8.20

8
-
Jan



(continued)

8.3

8.25, 8.29, 8.34

9
-
Jan

9

STRESS/STRAIN
-

AXIAL LOADING

8.4

8.37, 8.40, 8.45

10
-
Jan



normal strain, Hooke's Law





11
-
Jan



elastic/plastic behavior, deformation

9.1

9.1 to 9.5

3

14
-
Jan



statically indeterminate; temperature change

9.2

9.11, 9.14, 9.20, 9.23

15
-
Jan



Poisson's Ratio, multi
-
axial loading, shear strain





16
-
Jan



(continued)

9.3

9.25, 9.27, 9.30, 9.33

17
-
Jan



REVIEW

9.4

9.49, 9.51, 9.58

18
-
Jan



EXAMINATION 1





4

21
-
Jan



HOLIDAY
-

MARTIN LUTHER KING DAY





22
-
Jan

10

TORSION





23
-
Jan



stresses & deformations in circular shafts

10.1

10.1,
10.3, 10.5

24
-
Jan



stress/strain relationship

10.2

10.7, 10.13, 10.19

25
-
Jan



angle of twist; statically indeterminate

10.3

10.25, 10.29, 10.35

5

28
-
Jan

11

PURE BENDING





29
-
Jan



symmetric member, deformations & stresses

11.2

11.1, 11.3, 11.7,
11.9

30
-
Jan



composite materials

11.3

11.13, 11.15, 11.20

31
-
Jan



eccentric loading, unsymmetric bending

11.4

11.25, 11.27, 11.35, 11.37

1
-
Feb



REVIEW

11.5

11.50, 11.75

6

4
-
Feb



EXAMINATION 2





5
-
Feb

12

BEAM ANALYSIS/DESIGN
*





6
-
Feb



shear and bending moment diagrams

12.1

12.1*
, 12.3, 12.4, 12.5, 12.9

7
-
Feb



relations
-

load, shear, & bending moment

12.2

12.7*
, 12.11, 12.29, 12.31

8
-
Feb



beam selection

12.3

12.32, 12.37, 12.59









Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
4

of
8

WEEK

DATE

CHAPTER

LECTURE SCHEDULE **

HOMEWORK

No.

Exercises Due

7

11
-
Feb



(continued)

12.4

12.62, 12.63,
12.65

12
-
Feb

13

SHEAR STRESS; THIN WALLED MEMBERS





13
-
Feb



determination of shear stress

13.1

13.1, 13.3, 13.5

14
-
Feb



longitudinal shear

13.2

13.7, 13.9, 13.13

15
-
Feb



(continued)

13.3

13.25, 13.28

8

18
-
Feb



HOLIDAY
-

PRESIDENT'S DAY





19
-
Feb



REVIEW

13.4

13.29, 13.46

20
-
Feb



EXAMINATION 3





21
-
Feb

14

STRESS TRANSFORMATION





22
-
Feb



principal stresses, max shear stress

14.1

14.1, 14.2, 14.5, 14.6

9

25
-
Feb



Mohr's Circle

14.2

14.9, 14.10, 14.13, 14.17

26
-
Feb



thin
-
walled pressure vessels

14.3

14.20, 14.25

27
-
Feb



(continued)

14.4

14.29, 14.33

28
-
Feb

15

BEAM DEFLECTION
*





1
-
Mar



deformation under transverse loading

15.1

15.1*
, 15.3, 15.4

10

4
-
Mar



elastic curve, statically indeterminate

15.2

15.7,
15.9*
, 15.14

5
-
Mar



superposition

15.3

15.27, 15.33

6
-
Mar



REVIEW

15.4

15.37, 15.39

7
-
Mar



EXAMINATION 4





8
-
Mar

16

COLUMNS





11

11
-
Mar



Euler's Formula

16.1

16.1, 16.3, 16.8

12
-
Mar



column design

16.2

16.11, 16.12, 16.17

13
-
Mar



(continued)

16.3

16.28, 16.30

14
-
Mar



REVIEW

16.4

16.33, 16.39

15
-
Mar



REVIEW





12

18
-
Mar



No Class
-

Finals Week





19
-
Mar



FINAL (10:30 am to 12:20 pm)





20
-
Mar



No Class
-

Finals Week





*
Solve

problems

so indicated

integration and
/or

differentiation

techniques as applicable

** Subject to change to class needs at the Instructor's discretion



Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
5

of
8

COURSE EXPECTATIONS:

1)

BEHAVIOR:

Policies regarding behavior shall adhere to the current edition of the WWCC
Student Handbook. This includes, but is not limited to, code of conduct, cheating, and
plagiarism.
Establish and maintain good professional habits.

2)

COURSE

MATERIALS
: The student is expected to acquire all required materials and text
prior to the beginning of class.
A lack of materials and/or text will not excuse the student
from missing deadlines
!

It is the student’s responsibility to communicate to the instructor
beforehand and obtain temporary resources if needed in order to meet deadlines.

3)

ATTENDANCE:
A
ttendance is likened unto meeting
s

in the professional environment.
Attend on time! You are considered absent once role is taken. No more than one
unexcused abs
ence is acceptable. Excused absences are ones cleared with me
prior

to class.
Two excused absences are equivalent to one unexcused absence. A bonus is awarded for
one or less absence. If you are unable to attend for any reason, contact me
before class
.

Assignments due shall be turned in the next time you are in class. No exception.

4)

ASSIGNMENTS:
Homework shall be completed per

the

“HOMEWORK GUIDELINES” that

follow
. Assignments are due
by 4:00 pm

on the day scheduled.
L
ate work is
not
accepted.
You

may turn
it

in early.
However, w
ork shall not be returned until after
its due date.
Full
score may be awarded if it is submitted on time, completed in the proper format, worked
completely, and self
-
corrected.

Do not combine assignments
.

5)

TESTS:

Tests in
clude chapter and final examinations, competencies, and quizzes. A missed
text will be awarded a score of zero. Late tests shall not be given. Unavoidable exceptions
may be considered, but not if a pattern persists. Excused circumstances must be
accept
able to and cleared with the instructor
prior

to the test.

Students are allowed to use their

own

homework, class notes, calculator, supplies, and text
only as resources

during examinations

-

no

sharing.
Internet

access is
not allowed
.

6)

ELECTRONIC DEVICE
USAGE:

Electronic devices are helpful and well integrated into society.
However,
they must be used appropriately. In order to

meet
practices expected in the
professional environment
and maintain the appearance of fairness
, t
he following
expectations shal
l apply.

Breaching these will result in being asked to leave class and
receiving a zero score for assignment and/or test due that day.

a)

Turn p
hones
OFF

or leave them outside class
.


b)

NO TEXTING

is allowed.

This includes responding to text messages.

c)

CALCULAT
ORS

only are allowed in class or tests. NO substitutes

are allowed
.

Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
6

of
8

7)

DISABILITY:

If you have a disability and need accommodations, inform the instructor and
contact Claudia Angus, Coordinator of Disability/Support Services at
527
-
4262

or
claudia.angus@wwcc.edu

to seek accommodations. She is located in Office 133
C
, Student
Development Area. Failure to obtain accommodations will subject the student to the same
accommodations as the remainder of
the students.

8)

FINAL GRADE
: The student’s
assigned
final grade will be
determined from
total points

earned based upon hi
s/her demonstrated knowledge of materials from each
component

of
evaluation within the course. Additionally, one’s grade is subject to
preparation, timeliness,
and neatness of work completed at the instructor’s discretion.

Percentage

Total Points Scored

Final Grade

93
-
100%

930
-
1000

A

90
-
92.9%

900
-
929


A
-

87
-
89.9%

870
-
899


B+

83
-
86.9%

830
-
869

B

80
-
82.9%

800
-
829


B
-

77
-
79.9%

770
-
799


C+

73
-
76.9%

730
-
769

C

70
-
72.9%

700
-
729


C
-

65
-
69.9%

650
-
699


D+

60
-
64.9%

600
-
649

D

<60%

<600

F



Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
7

of
8

HOMEWORK GUIDELINES

Homework must be completed according to the following guidelines to receive credit or it will
receive deductions and be
deemed late at the instructor’s discretion.



Use engineering computation paper, front side only.



Use pencil only, preferably 0.5 or 0.7 mm, with soft lead. NO INK!



Label TOP of ALL pages: a) course number, b) first and last name, c) assignment, d) date



Place page indicators (i.e. 1 / 1) in the upper right
-
hand corner. The first number is the
current page. The second is the total number of pages in the assignment.



Place a line at the end of each exercise to indicate where it concluded. It should be writ
ten
as three continuous lines separated with two “/” and stretch completely across the page as
shown:
-----------------------------------
//
----------------
-
------------------
//
-------------------------------------



Make your work clear and neat. The instruc
tor will not decipher it. Neatness includes usage
of page lines, a straight
-
edge or other guides for sketches, and non
-
tattered paper.

FORMAT
: Each exercise shall be completed in the following manner in order:



Given

Statement:
(This helps begin to organ
ize your work)

o

List all the important information given in the exercise.

o

Write it in your own words.

o

Give enough information that someone reviewing the exercise will know what was
given.



Find

Statement:
(This clarifies what you are seeking to determine)

o

List and deliberate what you are asked to solve.

o

Write it in your own words.

o

Annotate each part by using lettering or numbering (a, b, c or 1, 2, 3) as needed.



Sketch

(if appropriate):

(This provides a visual aid to help understand the exercise)

o

Draw or sk
etch the exercise. Take enough time to draw it clearly.

o

Use a straight edge and template where applicable. Be proportionate the best you can.



Solution
:
(This is where the bulk of your work occurs in determining the answer)

o

List items that are not given in

the exercise that you should know. (i.e. formulas)

o

State any assumptions you might make and justify why you are making them.



Answer
:

o

Clearly indicate all your answers. Use a box.

o

Note answer with “ANS” in the right margin and point to the answer with an
arrow.

o

Be clear so someone checking your work does not need to search for the answer.



Civil Engineering Technology

Walla Walla Community College


ENGR& 225


Mechanics of Materials

Winter 2013





Printed:
11/16/13


Page
8

of
8

PORTFOLIO GUIDELINES

Class
Work

shall be organized in a binder

per the guidelines listed below
. Organization and
professional appearance are essential to the function o
f engineering and the student

-

hence
the reason for the portfolio. Portfolios
shall be
submitt
ed routinely and constitute
a portion of
one’s grade in accor
dance with the course syllabus.



Binder
: Use a 3
-
ring binder. A 1
-
1/4” size binder usually works best. However,
one should
confirm
the size during the first week of class. It
shall be

hardback, contain no zippers or
flaps, and include slip covers for labeling.



Cover
: Include a “heading” on the
cover with the information listed below in clear legible
text. Graphics are acceptable, but need to be kept within the contents of the course.
Excessiveness and doodling are not acceptable and may affect one’s grade. It is
recommended that it be type
-
wri
tten.

o

Course Number

o

Course Name

o

School Quarter and Year

o

Your first and last name



Organization
: Organize portfolios in order by course schedule. Separate each sub
-
section
listed below with clearly labeled dividers. At one’s discretion, additional divide
rs may be
included to help the student
further
organize the material according to their need.

The following materials only are allowed in the portfolio. Loose papers are not acceptable.

o

Assessments

o

Homework

o

Reports/Presentations

o

Examinations

o

Handouts
(as received in class)