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A direct SIF approach for anisotropic materials using the boundary element method.

Hattori, G. and Alatawi, I. A. and Trevelyan, J. (2015) 'A direct SIF approach for anisotropic materials using the boundary element method.', in Proceedings of the 23rd Conference on Computational Mechanics, ACME-UK 2015, 8th-10th April 2015, College of Engineering, Swansea University, Wales, UK. Swansea: Swansea University, pp. 279-282.

Abstract

Recently developments in numerical methods such as the Extended Finite Element Method (X-FEM) and the Extended Boundary Element Method (X-BEM) have significantly improved the accuracy in linear elastic fracture mechanics (LEFM) problems. Nevertheless, the postprocessing involved in the calculation of the Stress Intensity Factors still presents a computational burden. The most usual SIF evaluation techniques are the J-integral or the more general Interaction Integral (M-integral), which may require considerable computational resources of the order of those required to obtain the solution of the LEFMproblem. A direct approach, where the SIFs are revealed in the solution vector, has been developed by [1] for isotropic materials and is further extended to anisotropic materials in this work.

Item Type:Book chapter
Full text:(AM) Accepted Manuscript
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Status:Peer-reviewed
Publisher Web site:http://www.swansea.ac.uk/engineering/research/acme2015/programmeproceedings/proceedings/
Date accepted:No date available
Date deposited:11 March 2016
Date of first online publication:April 2015
Date first made open access:No date available

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