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2. A ductile bar of AISI 1030 hot-rolled steel bar has a minimum yield strength in tension and compression of 37.5 kpsi. Using the

2. A ductile bar of AISI 1030 hot-rolled steel bar has a minimum yield strength in tension and compression of 37.5 kpsi. Using the distortion-energy and maximum-shear-stress theories determine the factors of safety for the following plane stress states: = -12 kpsi, y = -24 kpsi, y = = 15 kpsi, y=-9 kpsi -24 kpsi, 7y=-15 kpsi

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