Physics, 21.10.2021 07:00 stormserena

A bar 100 cm in length is subjected to an axial pull, such that the maximum stress is equal to 10^5 N! m^2. It's area of cross section is a bit 2 cm^2 over a length of the road 95 cm and for the middle 5 cm length it is only 1 cm^2. if E is a 200 GN/m^2,calculate the strain energy in the bar.

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A bar 100 cm in length is subjected to an axial pull, such that the maximum stress is equal to 10^5...