GATE Civil Engineering (CE) 2017 Shift 2 Solved Paper

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Question : 53 of 65
 
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A 2 m long axially loaded mild steel rod of 8 mm diameter exhibits the load-displacement (P – δ) behavior as shown in the figure.

Assume the yield stress of steel as 250 MPa. The complementary strain energy in N-mm) stored in the bar up to its linear elastic behaviour will be ________
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