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A quadratic boundary element implementation in orthotropic elasticity using the real variable approach

By G.S. Padhi, R.A. Shenoi, S.S.J. Moy and G.L. Hawkins

Abstract

This paper revisits the real variable fundamental solution approach to the Boundary Integral Equation (BIE) method in two-dimensional orthotropic elasticity. The numerical implementation was carried out using quadratic isoparametric elements. The strong and weakly singular integrals were directly evaluated using Euler's transformation technique. The limiting process was done in intrinsic coordinates and no separate numerical treatment for strong and weak singular integrals was necessary. For strongly singular integrals a priori interpretation of the Cauchy principal value is not necessary. Two problems from plane stress and strain are presented to demonstrate the numerical efficiency of the approach. Excellent agreement between BEM results and exact solutions was obtained even with relatively coarse mesh discretization

Topics: TA
Year: 2000
OAI identifier: oai:eprints.soton.ac.uk:21526
Provided by: e-Prints Soton

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