A.Complete the following statements with the words/phrases in the box.

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Nov 29, 2013 (3 years and 8 months ago)

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Basic

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Elective Courses
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2012






CANKAYA UNIVERSITY

OFFICE OF BASIC & ELECTIVE COURSES

-
ENGLISH UNIT
-

ACS
-
20
6

ME
-
CE
-
MECE
-
M
S
E


WEEK 7 Unit 18 Material Properties 1

Vocabulary Exercise


A.

Compl
ete the following statements
with the words/phrase
s

in the box.






1.

When a sufficient load is applied to a metal or other structural material, it will cause the material to
change

shape. When the stress is sufficient to permanently deform the metal, it is called
_______________.

2.

Knowledge of the ____________ is vital when designing a component since it generally represents an
upper limit to the load that can be applied.

3.

The amount
of electric power and energy that a wind turbine may be able to produce is directly
____________

to

the wind speeds and duration at any given site.

4.

A popular misconception is that all materials that bend are "weak" and those that don't are "strong." In
reality, many materials that undergo large elastic and plastic ____________, such as steel, are able to
absorb stresses that would cause brittle materials, such as glass, to break.

5.

A material

like copper is known as ____________

-

that is, it will flow, an
d can be drawn out into a
wire without fracture.

6.

Glassy tuffs, such as Tufo Giallo and Tufo Lionato, have low compressive strengths
--

they
__________

and fall apart under moderate pressures.

7.

S
teel beams used to support big

structures are constantly under
an enormous amount of stress. Beams
undergo stresses of both
___________ (crushing)

and tension (stretching)

8.

The maximum engineering stress level reached in a tension test is called ______________
.

9.

External forces applied to a solid object may compress, st
retch, twist, or bend it out of shape. If too
much deformation occurs, the object will not return to its original shape, which means that its
______________ has been exceeded.

10.

I
f a material can be deformed in all directions by such as hammering and pressin
g without it cracking
or splitting it is
said to be __________.

11.

Materials that are __________

cannot withstand any strain before they crack or break. Two good
examples of this type of material would be acrylic and glass.

12.

The more flexible an object is, the

less ____________ it is.











ultimate
tensile strength


stiff



ductile



yield point

compression



malleable


proportional


plastic deformation

brittle




fracture


elastic limit


deformations



Legal Notice :
This is a
copyrighted material. It

cannot be copied, reproduced or distributed in any form without a prior written approval from Office of
Basic

&

Elective Courses
-
English Unit
-


© CANKAYA UNIVERSITY
-

2012










B.

Match the words with their definitions.




a)

ductility

b)

tensile testing

c)

elongate

d)

compressive strength

e)

deformation

f)

stiff

g)

malleable

h)

t
ensile strength

i)

elastic limit

j)

plasticity


1.

the highest stress at which all deformation
strains are fully recoverable
.

( )

2.

the ability of a material to be changed in shape permanently by external blows or pressure, without
cracking or breaking

( )

3.

a fundamental
materials science

test in which a sample is subjected to uniaxial
tension

until failur
e.
( )

4.

capable of being extended or shaped by beating with a hammer or by the pressure of rollers
( )

5.

the ability to resist stretching
( )

6.

firm, hard, or difficult to bend

( )

7.

a change in the usual shape of something, especially one that makes it
worse, or the process of
changing something's shape

( )

8.

to become longer, or make something longer than normal

( )

9.

a measure of how much deformation or strain a material can withstand before breaking

( )

10.

t
he
ability to resist forces which try to crus
h and squash
.

( )