Mechanics of Materials, 7th Edition
7th Edition
ISBN: 9780073398235
Author: Ferdinand P. Beer, E. Russell Johnston Jr., John T. DeWolf, David F. Mazurek
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 8.3, Problem 38P
Two forces are applied to the pipe AB as shown. Knowing that the pipe has inner and outer diameters equal to 35 and 42 mm, respectively, determine the normal and shearing stresses at (a) point a, (b) point b.
Fig. P8.38
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1.4 kN - m
PROBLEM 8.43
A 10-kN force and a 1.4-kN - m couple are applied at the top of the 65-mm
diameter brass post shown. Determine the principal stresses and maximum
shearing stress at (a) point H, (b) point K.
10 kN
240 mm
Omax = 30.0 MPa
O min =-30.0 MPa
Tmax = 30.0 MPa
Omax = 7.02 MPa
Omin =-96.0 MPa
Tmay =51.5 MPa
PROBLEM 7.26
0.2 m
The axle of an automobile is acted upon by the forces and couple
shown. Knowing that the diameter of the solid axle is 32 mm,
determine (a) the principal planes and principal stresses at point H
located on top of the axle, (b) the maximum shearing stress at the
same point.
3 kN
350 N- m
3 kN
Omax = 18.67 MPa
= -158,5 MPa
O min
7.25 The steel pipe AB has a 102-mm outer diameter and a 6-mm wall
thickness. Knowing that arm CD is rigidly attached to the pipe,
determine the principal stresses and the maximum shearing stress
at point K.
10 kN
200 mm
C
Fig. P7.25
22
6 mm
B
H
D
51 mm
150 mm
Chapter 8 Solutions
Mechanics of Materials, 7th Edition
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