At proportional limit, a 20 mm thick x 75 mm wide bar elongates 6.8 mm under...

    

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At proportional limit, a 20 mm thick x 75 mm wide bar elongates 6.8 mm under an axial load of 480 kN. The bar is 1.6- m long. If the Poisson's ratio is 0.32 for the material, a) Determine the proportional limit (2 pts). b) Determine the modulus of elasticity (2 pts). c) Determine the change in each lateral dimension (2 pts). At proportional limit, a 20 mm thick x 75 mm wide bar elongates 6.8 mm under an axial load of 480 kN. The bar is 1.6- m long. If the Poisson's ratio is 0.32 for the material, a) Determine the proportional limit (2 pts). b) Determine the modulus of elasticity (2 pts). c) Determine the change in each lateral dimension (2 pts).

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SOLUTION a The proportional limit is the maximum stress at which the stressstrain relationship is li... View the full answer