An Application of Incremental Plasticity Theory to Fatigue Life Prediction of Steels

[+] Author and Article Information
W. R. Chen, L. M. Keer

Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208

J. Eng. Mater. Technol 113(4), 404-410 (Oct 01, 1991) (7 pages) doi:10.1115/1.2904118 History: Received July 27, 1990; Revised November 30, 1990; Online April 29, 2008


An incremental plasticity model is proposed based on the von-Mises yield condition, associated flow rule, and nonlinear kinematic hardening rule. In the present model, fatigue life prediction requires only the uniaxial cycle stress-strain curve and the uniaxial fatigue test results on smooth specimens. Experimental data of 304 stainless steel and 1045 carbon steel were used to validate this analytical model. It is shown that a reasonable description of steady-state hysteresis stress-strain loops and prediction of fatigue lives under various combined axial-torsional loadings are given by this model

Copyright © 1991 by The American Society of Mechanical Engineers
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