A review of SIF evaluation and modelling of singularities in BEM |
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| Authors: | N. K. Mukhopadhyay S. K. Maiti A. Kakodkar |
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| Affiliation: | (1) Reactor Design & Development Group, Bhabha Atomic Research Centre, Mumbai 400085, India, IN;(2) Mechanical Engineering Department, Indian Institute of Technology, Bombay, Mumbai 400076, India, IN |
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| Abstract: | Various boundary element method (BEM) based approaches to solve crack problems are discussed. The displacement method, J-integral method and the modified crack closure integral (MCCI) method for the evaluation of the stress intensity factors (SIFs) are reviewed. Effects of partial and total modelling of singularities on the accuracy of the results have been presented. Elements capable of partial and total modelling of the wellknown square root singularities, variable order singularities, neighbouring variable order singularities, etc., are also reviewed. Case studies are included to illustrate the effectiveness of the various methods of calculation of the SIFs and the performance of the special elements. Received 11 September 1999 |
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