Elasto-plastic and Fatigue Analyses of a Cylinder with Hole
A load-carrying component of a structure is subjected to multi-axial cyclic loading during which localized yielding of the material occurs.Due to localized yielding, you can use two methods to obtain the stress and strain distributions for the fatigue law. The first method is an elasto-plastic analysis with linear kinematic hardening, while the second is a linear elastic analysis with Neuber correction for plasticity, based on the Ramberg-Osgood material model. These are compared.
Then a low-cycle fatigue analysis of the part based on the Smith-Watson-Topper (SWT) model is performed.
 |
Boundary plot of maximal normal stress at the critical plane. |
Engineering Fields
- Nonlinear Analysis
Application Areas
- Structural Mechanics