A method is presented for conservatively estimating a total fatigue life through a prediction of crack initiation life using the cumulative damage approach. The procedure is based upon the use of Neuber’s Rule, a cyclic stress-strain function, and a histogram of nominal linearly elastic equivalent strain. This provides for actual cyclic stress-strain definition and crack initation life prediction at a particular point on a cyclically loaded body. Linear finite element stress analysis plays a major role in the solution. An outline for computer-aided implementation and a case history are included.
Theoretical Fatigue Life Prediction Using the Cumulative Damage Approach
Sae Technical Papers
Fatigue Conference ; 1982
1982-02-01
Conference paper
English
Theoretical fatigue life prediction using the cumulative damage approach
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