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ductile material having an endurance limit of 196 N/mm² and the yield point at 294 N/mm² is stressed under variable load The

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 2.7.5P: Determine the strain energy per unit volume (units of psi) and the strain energy per unit weight...

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Concept explainers

Strain energy

The term strain indicates the variation in an object's length, area, and volume when the object is subjected to an external force. The external force may be of normal, shear, moment, torque, etc. The strain in an object depends on the types of external force and cross-section of the object. Mathematically, the evaluation of strain can be obtained with the help of elastic constants.

Question

A ductile material having an endurance limit of 196 N/mm² and the yield point at 294 N/mm² is stressed under variable load The maximum and minimum stresses are 147 N/mm² and 49 N/mm² The fatigue stress concentration factor is 1.32

What is the factor of safety for this loading?

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