(7) A rod of 0.12in diameter is coiled into a tension spring of 20 effective coils with a mean radius of 1.0in. The modulus of rigidity is 12x106 psi. Determine (a) the stress due to a load 3.0lb; (b) the corresponding spring elongation; (c) If the initial compression in the coils were 1.0lb, what would the stress & elongation be when the 3.0lb load was applied?

(7) A rod of 0.12in diameter is coiled into a tension spring of 20 effective coils with a mean radius of 1.0in. The modulus of rigidity is 12x106 psi. Determine (a) the stress due to a load 3.0lb; (b) the corresponding spring elongation; (c) If the initial compression in the coils were 1.0lb, what would the stress & elongation be when the 3.0lb load was applied?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.6.7P: A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The...

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