Answered: 60,000 40,000 20,000 0.002 0.004 0.006…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

The stress–strain relationship shown in Figure was obtained during the tensile test of an aluminum alloy specimen. Determine the following:
a. Young’s modulus within the linear portion
b. Tangent modulus at a stress of 45,000 psi
c. Yield stress using an offset of 0.002 strain
d. If the yield stress in part c is considered failure stress, what is the maximum working stress to be applied to this material if a factor of safety of 1.5 is used?

60,000
40,000
20,000
0.002
0.004
0.006
0.008
Strain, in./in.
Stress, psi

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