Question: An aluminum wire having a diameter d = 1/10 in. and length L = 12 ft is subjected to a tensile load P (see figure).

An aluminum wire having a diameter d = 1/10 in. and length L = 12 ft is subjected to a tensile load P (see figure). The aluminum has modulus of elasticity E = 10,600 ksi If the maximum permissible elongation of the wire is 1/8 in. and the allowable stress in tension is 10 ksi, what is the allowable load Pmax?

d -L

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