Exam No.2
2:00-2:50pm, 10-28-2015
Student Name
ENGR0135, Fall 2015
Instructor: Prof. Q.-M. Wang
Score:
Problem 1
The bolt has a diameter of 20 mm and passes through a tube that has an inner diameter of 50 mm
and an outer diameter of 60 mm. If the bolt and tube are made of A-36 steel [Young’s modulus,
Es=200 GPa]
Determine the normal stress in the tube and bolt when a force of 40 kN is applied to the
bolt.Assume the endcaps are rigid.
Exam No.2
2:00-2:50pm, 10-28-2015
ENGR0135, Fall 2015
Instructor: Prof. Q.-M. Wang
Problem 2
If the tension in the cable is f=140 lb, determine the magnitude of the moment produced by this
force about the hinged axis, CD, of the panel.
Exam No.2
2:00-2:50pm, 10-28-2015
ENGR0135, Fall 2015
Instructor: Prof. Q.-M. Wang
Exam No.2
2:00-2:50pm, 10-28-2015
ENGR0135, Fall 2015
Instructor: Prof. Q.-M. Wang
Problem 3
1) Replace the force system acting on the truss by an equivalent resultant force;
2) Determine the distance from point C to the line of action of the resultant force.
Exam No.2
2:00-2:50pm, 10-28-2015
𝑑𝑑 =
ENGR0135, Fall 2015
Instructor: Prof. Q.-M. Wang
𝑀𝑀𝑀𝑀 6400
=
= 7.53 𝑓𝑓𝑓𝑓
𝑅𝑅
850