A methodology for crack tip mesh design is developed which consists of comparing the mesh geometric parameters against the accuracy of the finite element solution. By successive changes in the mesh parameters a near optimal mesh can be obtained. This was done here for two-dimensional linear elastic
A near optimal crack tip mesh
โ Scribed by Fernando C.M. Menandro; E.T. Moyer Jr; H. Liebowitz
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 404 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
The near optimal crack tip mesh obtained by the authors in a previous paper is tested for a set of problems. The accuracy is maintained within the desired values. The direct displacement extrapolation method for SIF estimation is compared to the virtual crack extension. The methodology for crack tip mesh design discussed previously is validated.
๐ SIMILAR VOLUMES
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Plane-strain deformations of an isotropic and homogeneous Hookean body containing a crack are studied and it is required that the dilatation everywhere in the body be. greater than or equal to a constant. Following Prager, the region where the dilatation always equals the constant is identified as t