A steel has a modulus of elasticity of 29,000 ksi and an elastic limit of 52...

A steel has a modulus of elasticity of 29,000 ksi and an elastic limit of 52 210 psi. A rod of this material and cross section of 0.0186 in2 and 36 in length is fastened vertically to a beam with a load of 410 lb at the opposite end. Determine: a) If this load is removed, will the bar return to its initial length? Justify the answer; b) The unitary deformation of the bar in these conditions; c) The minimum diameter of a bar of this material and that does not present permanent (plastic) deformation when subjected to a load of 11,500 lbs.

answers :a) 157.17 MPa  360 MPa (SLE) b) 0.076 %; c) 0.0134 m.

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samet mamat answered 1 year ago

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