A helical extension spring is made of 1/8-in music wire A228 (E 28.5 Mps G = 11.75 Mpsi, Sut = 271 kpsi). The mean diameter of the spring body is 1.0 in (spring index 8). The initial tension is 10 Ibf. The maximum external load that the spring can sustain to avoid the yielding of the body is:

A helical extension spring is made of 1/8-in music wire A228 (E 28.5 Mps G = 11.75 Mpsi, Sut = 271 kpsi). The mean diameter of the spring body is 1.0 in (spring index 8). The initial tension is 10 Ibf. The maximum external load that the spring can sustain to avoid the yielding of the body is:

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.5.10P: The tensional pendulum shown in the figure consists of a horizontal circular disk of a mass M = 60...

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Question

Give me right solution with clear calculations

A helical extension spring is made of
1/8-in music wire A228 (E = 28.5 Mpsi,
G = 11.75 Mpsi, Sut = 271 kpsi). The
mean diameter of the spring body is
1.0 in (spring index 8). The initial
tension is 10 Ibf. The maximum
external load that the spring can
sustain to avoid the yielding of the
body is:
26 lbf
70 Ibf
167 Ibf
628 Ibf

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