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Elastoplastic Low-Cycle Fatigue Analysis of Cylinder with a Hole

Application ID: 2200

A load carrying component of a structure is subjected to multi-axial cyclic loading during which localized yielding of the material occurs. In this model you perform a low cycle fatigue analysis of the part based on the Smith-Watson-Topper (SWT) model.

Due to localized yielding, you can use two methods to obtain the stress and strain distributions for the fatigue evaluation. The first method is a full elastoplastic analysis with kinematic hardening, while the second is a linear elastic analysis with Neuber correction for plasticity. This example explores the first method. In the model “Notch Approximation to Low-Cycle Fatigue Analysis of Cylinder with a Hole”, the same problem is solved using the elastic approach.

This application was built using the following:

Fatigue Module