| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 498649 | Computer Methods in Applied Mechanics and Engineering | 2010 | 8 Pages |
Abstract
A least-squares method was developed to find the stress intensity factors (SIFs) of a notch formed from several elastic anisotropic materials. First, the complex displacement and stress functions of the interface notch are deduced into a simple matrix form, and then stress fields from the finite element analysis are substituted into the least-squares equation generated from the stress functions to evaluate the notch SIFs. Comparisons with theoretical and H-integral solutions indicate that the SIFs evaluated from the least-squares method are accurate if each dimension (two- or three-dimension) contains more than three stress terms.
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Authors
S.H. Ju,