Problem 3.2-1 A copper rod of length L 18.0 in. is to be twisted by torques T (see figure) until the angle of rotation between the ends of the rod is 3.0. If the allowable shear strain in the copper is 0.0006 rad, what is
Strain Energy in Torsion
(A) STRAIN ENERGY U T 2L 2GIP d2Lt2 max 16G Substitute numerical values: U 5.36 J d 3tmax 16
32 d4 (Eq. 2)
G L d
45 GPa 0.75 m 40 mm 32 MPa 16T d3 d4 32 T d 3tmax 16 (Eq
Shear Stresses in Circular Beams with Flanges
Problem 5.10-2 Dimensions of cross section: b ϭ 180 mm, t ϭ 12 mm,
h ϭ 420 mm, h1 ϭ 380 mm, and V ϭ 125 kN.
b ϭ 180 mm
t ϭ 12 mm
h ϭ 420 mm
h1 ϭ 380 mm
Mechanics of Solids
March 13, 2013
Draw freebody diagrams wherever necessary.
Any evidence of academic dishonesty will result in a grade of 0 to all the individuals involved.
Show the units next to your answers.
MEGR 2144 Introduction to Solid Mechanics: Fall 2016
Dr. Qiuming Wei
Office: Duke 362, 704 687-8213 (Lab: Duke 366, 148A)
Office hours: Wed: 2:30-4:30pm; Thur: 2:30-3:30pm; other times by appointment
Email: [email protected] (highly recommended for non-office
MEGR 2144-Quiz 16
Student Name: a
1. When using the Method of Superposition'(MOS) to analyze beams, we have made the following
important assumptions (choose all that apply):
(a) The material is linearly elastic.
(b) The presence of one load does not affec
MEGR 2144-O.uiz 17
1. If the distributed load w on a beam is 0, the shear force V is
@ a constant. (b) linear in k. (c) quadratic in x.
2. If the distributed load w on a beam is O, the bending moment M is
(a) a constant. @linear in x. (c) qu