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Problem on strain energy.for gradually applied load.

Calculate strain energy stored in a bar 2m long, 50mm wide and 40mm thick when it is subjected to a tensile load of 60KN. Take E=200 GPa.

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Data: L=2000mm, b=500mm, d=40mm

P=600KN=600103N

E=200GPa=200103N/mm2

p=PA=6001035040=300N/mm2

Strain energy =p22EAL

u=30022200103(5040)2000

u=900103Nmm

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part 1

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