Question 2 A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a spring index of C=10. The spring is to operate inside a hole, so buckling is not a problem and the ends can be left plain. The free length of the spring should be 80 mm. A force of 50N should deflect the spring 15 mm. 1. Determine the spring rate. 2. Determine the minimum hole diameter for the spring to operate in. 3. Determine the total number of coils needed.

Question 2 A helical compression spring is to be made of oil-tempered wire of 4-mm diameter with a spring index of C=10. The spring is to operate inside a hole, so buckling is not a problem and the ends can be left plain. The free length of the spring should be 80 mm. A force of 50N should deflect the spring 15 mm. 1. Determine the spring rate. 2. Determine the minimum hole diameter for the spring to operate in. 3. Determine the total number of coils needed.

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 2.5.31P

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