A pollution controlled hybrid interior error estimator for linear elastostatics
✍ Scribed by S. Mukherjee; C. S. Krishnamoorthy
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 255 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0029-5981
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✦ Synopsis
A hybrid error estimator using a priori interior region estimates in an a posteriori framework is presented for linear elastostatics problems in FEA. It is shown that local rates of convergence are augmented by this technique and global rates are not adversely a ected. The e ects of pollution for this estimator are explained and a pollution error estimator is derived using the concept of error loads. It is shown that pollution error estimation can improve the performance of both the conventional a posteriori and the hybrid techniques. A series of numerical results are presented which demonstrate the superior performance of the proposed method over previously published interior error estimation techniques.