A helical spring made of hard-drawn wire having G = 29 GPa, supports a continuous load. Given: d = 6 mm, D = 30 mm, r. = 20% Design Requirements: The ends are squared and ground; one end is free to tip. In the most-compressed condition, the force is 600 N: after 13 mm of release, the minimum force is 340 N. Determine: a. The factor of safety based on the Soderberg criterion. b. The free height. c. The surge frequency. d. Whether the spring will buckle in service.

A helical spring made of hard-drawn wire having G = 29 GPa, supports a continuous load. Given: d = 6 mm, D = 30 mm, r. = 20% Design Requirements: The ends are squared and ground; one end is free to tip. In the most-compressed condition, the force is 600 N: after 13 mm of release, the minimum force is 340 N. Determine: a. The factor of safety based on the Soderberg criterion. b. The free height. c. The surge frequency. d. Whether the spring will buckle in service.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.2.12P: A small lab scale has a rigid L-shaped frame ABC consisting of a horizontal aim AB (length b = 30...

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