A helical spring is made by wrapping wire 25mmØ around a forming cylinder 175mm in diameter. (a)Compute the number of turns required to permit a stretch of 100mm without exceeding a shear stress of 100MPa. Assume G = 82,800 GPa (b) If the number of turns is 10 and shearing stress is limited to 90MPa, what is the diameter of the wire? (c) If helical spring is made by wrapping wire 20mm in diameter, compute the number of turns. Is the number of turns increase or decrease when diameter decrease from 25mm to 20mm?

A helical spring is made by wrapping wire 25mmØ around a forming cylinder 175mm in diameter. (a)Compute the number of turns required to permit a stretch of 100mm without exceeding a shear stress of 100MPa. Assume G = 82,800 GPa (b) If the number of turns is 10 and shearing stress is limited to 90MPa, what is the diameter of the wire? (c) If helical spring is made by wrapping wire 20mm in diameter, compute the number of turns. Is the number of turns increase or decrease when diameter decrease from 25mm to 20mm?

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 8.5.12P: Solve the preceding problem if the diameter is 480 mm, the pressure is 20 MPa, the yield stress in...

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