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Question: ps32 141 a 5 ft long bar is made of...

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PS3-2 (1.4-1). A 5 ft long bar is made of a structural steel having the stress-strain diagram shown in the figure. The yield stress is 42 ksi and the slope of the initial linear part of the diagram (modulus of elasticity) is 30 x 103 ksi. The bar is loaded axially until it elongates 0.3 in., 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. 1-39.) 60 40 (ksi) 20 0.002 0.004 0.006

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