A steel bar 10 mm in diameter and 150 cm long is stressed by a weight of
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Question:
A steel bar 10 mm in diameter and 150 cm long is stressed by a weight of 12 kg dropping freely through a height h = 50 mm onto a collar produced at end of the bar, the other end of the bar is fixed to the ceiling. Find the instantaneous stress and instantaneous elongation. Comment whether the bar will break under this shock (impact) load. E = 210 kN/mm², the ultimate strength of the steel is 450 MPa.What will be the stress and elongation if the same load is applied suddenly instead of impact loading?
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