Mechanics of Materials (MindTap Course List)
9th Edition
ISBN: 9781337093347
Author: Barry J. Goodno, James M. Gere
Publisher: Cengage Learning
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Chapter 1, Problem 1.7.7P
A bar of monel metal with a length L = 9 in. and a diameter d = 0225 in. is loaded axially by a tensile force P (see figure). If the bar elongates by 0.0)95 in., what is the decrease in diameter & What is the magnitude of the load F? Use the data in Table 1-2. Appendix I.
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1.5-2 A bar of length 2.0 m is made of a structural steel
having the stress-strain diagram shown in the figure. The
yield stress of the steel is 250 MPa and the slope of the ini-
tial linear part of the stress-strain curve (modulus of elas-
ticity) is 200 GPa. The bar is loaded axially until it
elongates 6.5 mm, and then the load is removed.
How does the final length of the bar compare with
its original length? (Hint: Use the concepts illustrated in
Fig. 1-36b.)
o (MPa)
300
200
100
0.002
0.004
0.006
PROB. 1.5-2
A flat bar with a hole (see figure) has widths b = 60 mm and c = 40mm. The fillets have radii equal to 5 mm. What is the diameter dmax of the largest hole that can be drilled through the bar without reducing the load carrying capacity?
The round bar in the figure is made of steel (E-207 GPa). The load F has a magnitude of 100
N. You will be finding the stress at point A.
20 mm dia
200 mm
100 mm
Chapter 1 Solutions
Mechanics of Materials (MindTap Course List)
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