SYMPOSIA PAPER Published: 01 January 1988
STP24548S

Computer-Based Prediction of Cyclic Deformation and Fatigue Behavior

Source

The paper briefly reviews the history of rheological spring-slider based, stress-strain models, and the early computerized versions used to simulate cyclic deformation and predict fatigue life. A set of rules is introduced which allows cycle by cycle simulation of the local stress-strain behavior at the root of a notched component subjected to any variable amplitude load history; predicts the crack initiation life; and, with two modifications to the notch analysis and the fatigue damage summation routines, models the local stress-strain behavior at the crack tip and resulting crack propagation rates. Supporting software that has resulted in practical applications for automotive design is discussed.

Author Information

A, Conle
Ford Scientific Research Laboratories, Dearborn, MI
TR, Oxland
University of Waterloo, Waterloo, Ontario, Canada
TH, Topper
University of Waterloo, Waterloo, Ontario, Canada
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Details
Developed by Committee: E08
Pages: 1218–1236
DOI: 10.1520/STP24548S
ISBN-EB: 978-0-8031-5035-5
ISBN-13: 978-0-8031-0944-5