SEDL / STP / STP608-EB / STP27856S

Static Mean Stress and Cyclic Yield Strength

Weissmann, GF
Supervisor, Mechanics of Materials, Bell Laboratories, Murray Hill, N.J.

Davis, JA
Student, Prairie View University, Prairie View, Tex.

Pages: 12    Published: Jan 1976

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Abstract

The cyclic yield strength of metals depends on the cyclic plastic deformation, the static mean stress, the number of cycles, and the frequency. For a number of different alloys, the cyclic yield strength in bending was determined as a function of the plastic deformaion and the mean stress. The application of a static stress always caused a reduction of the cyclic yield strength. The magnitude of the reduction depends on the type of material investigated. The results are discussed with respect to possible spring applications.