, . tr 73 2F 7E1 5-EADl -411C-8200-8 1C8FC72 9 9F5
exam-3a1-ec13f
#158 Page 2 of 1-0
tr
. Section 1: Concept problems
Problem 1. [6 pts] Matching. For the stress-strain curve shown, write the letter of the most
appropriate point or region next to the name. Base your answers on the diagram,
1
C Strain Hardening
Region
F
2 B Yield region
G
f E 3
A Elastic region
4.
r Ultimate stress
5
L Necking region
A B C D
6. E Yield Stress
€
Problem 2. [8 pts]
The square steelbar is currently at 100'F. Find the a bc
temperature at which the bar will just barely touch the
wall. (lmage not drawn to scale)
L0 in 0.00L in
N
5= o<ATL
t) (n)( io ;^)
xto
I , ro' = ( 6'd
Your answer must appear in this box
0-
AT: is.Y l- -Tr il 5'( ut=
exam-3a1-ec13f
#158 Page 2 of 1-0
tr
. Section 1: Concept problems
Problem 1. [6 pts] Matching. For the stress-strain curve shown, write the letter of the most
appropriate point or region next to the name. Base your answers on the diagram,
1
C Strain Hardening
Region
F
2 B Yield region
G
f E 3
A Elastic region
4.
r Ultimate stress
5
L Necking region
A B C D
6. E Yield Stress
€
Problem 2. [8 pts]
The square steelbar is currently at 100'F. Find the a bc
temperature at which the bar will just barely touch the
wall. (lmage not drawn to scale)
L0 in 0.00L in
N
5= o<ATL
t) (n)( io ;^)
xto
I , ro' = ( 6'd
Your answer must appear in this box
0-
AT: is.Y l- -Tr il 5'( ut=
