A fatigue test was conducted in which the mean stress was 70 MPa (10,000 psi), and the stress am- plitude was 210 MPa (30,000 psi). (a) Compute the maximum and minimum stress levels. (b) Compute the stress ratio. (c) Compute the magnitude of the stress range.

A fatigue test was conducted in which the mean stress was 70 MPa (10,000 psi), and the stress am- plitude was 210 MPa (30,000 psi). (a) Compute the maximum and minimum stress levels. (b) Compute the stress ratio. (c) Compute the magnitude of the stress range.

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 2.5.1P: The rails of a railroad track are welded together at their ends (to form continuous rails and thus...

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Question

A fatigue test was conducted in which the mean
stress was 70 MPa (10,000 psi), and the stress am-
plitude was 210 MPa (30,000 psi).
(a) Compute the maximum and minimum stress
levels.
(b) Compute the stress ratio.
(c) Compute the magnitude of the stress range.

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