Abstract
A technique for estimating fatigue crack propagation in notched plates subjected to variable amplitude loading is outlined in this paper. An elastic-plastic finite element model is used to determine the effect of notch geometry and the residual plastic deformations. The analytic model for crack growth is based on an effective stress intensity concept. All of the calculations are based on constant amplitude materials data. Results of this procedure are compared to tests on a modified compact tension specimen. The program consisted of predicted propagation lives for forty-five (45) tests on two structural steels, three load histories and, at least, three maximum load levels.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
