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

Hattori, G.; Alatawi, I.A.; Trevelyan, J.

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.

Citation

Hattori, G., Alatawi, I., & Trevelyan, J. (2015, April). A direct SIF approach for anisotropic materials using the boundary element method. Presented at ACME 2015., Swansea, Wales

• Presentation Conference Type: Conference Paper (published)
• Conference Name: ACME 2015.
• Start Date: Apr 8, 2015
• End Date: Apr 10, 2015
• Publication Date: Apr 10, 2015
• Deposit Date: Apr 13, 2015
• Publicly Available Date: Mar 11, 2016
• Publisher: Swansea University
• Pages: 279-282
• Book Title: Proceedings of the 23rd Conference on Computational Mechanics, ACME-UK 2015, 8th-10th April 2015, College of Engineering, Swansea University, Wales, UK.
• Public URL: https://durham-repository.worktribe.com/output/1153065
• Publisher URL: http://www.swansea.ac.uk/engineering/research/acme2015/programmeproceedings/proceedings/
• Additional Information: Conference date: 8-10 April 2015