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EM 319 Mechanics of Solids
Fall 2011
Sample Exam for the 1
st
MidTerm
Allowable time: 3 hours
Closed books, notes and homework. Calculators allowed.
Name: _______________________________________________
EID: ________________________________________________
TA session:
□
Rong Jiao
T 5~7pm
14165
□
John Mersch
W 5~7pm
14170
□
Andrew Barnes
T 6~8pm
14175
□
Rong Jiao
W 6~8pm
14180
Given formulas:
A
N
,
E
,
al
longitudin
transverse
,
L
,
T
T
,
dx
x
A
x
E
x
N
1 ft = 12 in
Draw
Free Body Diagrams
explicitly.
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Problem 1 (25 Points)
The twobar truss ABC shown below has pin supports at points A and C, which are 2 m apart.
Members AB and BC are steel bars, pin connected at joint B. The length of bar BC is 3.0 m. A
sign weighing 5.4 kN is suspended from bar BC at points D and E, which are located 0.8 m and
0.4 m, respectively from the ends of the bar.
a) Determine the tensile force in bar AB.
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This note was uploaded on 11/26/2011 for the course EM 319 taught by Professor Kennethm.liechti during the Spring '08 term at University of Texas at Austin.
 Spring '08
 KennethM.Liechti

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