Bundle: Mechanics Of Materials, Loose-leaf Version, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
9th Edition
ISBN: 9781337594318
Author: Barry J. Goodno; James M. Gere
Publisher: Cengage Learning
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Chapter 8, Problem 8.5.27P
, An arm A BC lying in a horizontal plane and supported at A (see figure) is made of two identical solid steel bars AB and BC welded together at a right angle. Each bar is 22 in. long.
(a) Knowing that the maximum tensile stress (principal stress) at the top of the bar at support A due solely to the weights of the bars is 1025 psi, determine the diameter d of the bars.
(b) If the allowable tensile stress is 1475 psi and each bar has a diameter d = 2.0 in,, what is the maximum downward load P that can be applied at C(in addition to self-weight
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An arm ABC lying in a horizontal plane and supported at A (Figure 4) is made of two
identical solid steel bars AB and BC welded together at a right angle. Each bar is 0.50 m
long. Knowing that the maximum tensile stress (principal stress) at the top of the bar at
support A due solely to the weights of the bars is 6.40 MPa,
a) determine the diameter d of the bars. Density of steel is 7860 kg/m³.
b) If bigger diameter or longer length of steel bars needed for the arm ABC, any
modification can be made to support the same maximum tensile stress.
B
Figure 4
A rigid plate (AC) is connected to flat steel bars by pins at A and B. The horizontal flat steel bar
ED is also connected via pins at points E and D.
Member AE consists of two 6 mm by 25 mm parallel flat bars, while members EB and ED are
single flat bars with dimensions 8 mm by 30 mm.
If the structure is subjected to a 2-kip vertical force at point A, find the axial (normal) stress in
members AE, EB, and ED.
A
2 kip
-3'-
E
B
D
-3'-
C
4'
Solve by hand please and correct answer
Chapter 8 Solutions
Bundle: Mechanics Of Materials, Loose-leaf Version, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
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