1. A closed coiled helical spring, is made out of a 10mm diameter steel rod, has 10 complete coils each of mean diameter of 80mm. Calculate for force of 200N: (a) the stress induced in the section of the rod (b) the deflection under the pull (c) the amount of energy stored in the spring during extension.

1. A closed coiled helical spring, is made out of a 10mm diameter steel rod, has 10 complete coils each of mean diameter of 80mm. Calculate for force of 200N: (a) the stress induced in the section of the rod (b) the deflection under the pull (c) the amount of energy stored in the spring during extension.

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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Buckling of columns

The column is described as a vertical member of the structure that carries an axial compressive load, and buckling is a lateral deformation of the column under the application of load.

Question

1. A closed coiled helical spring, is made out of a 10mm diameter steel rod, has 10 complete coils each of mean diameter of 80mm. Calculate for force of 200N:
(a) the stress induced in the section of the rod
(b) the deflection under the pull
(c) the amount of energy stored in the spring during extension.
Take G=84GPa.

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