2019
DOI: 10.1016/j.enganabound.2018.11.016
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The boundary element method for elasticity problems with concentrated loads based on displacement singular elements

Abstract: The boundary element method (BEM) has been implemented in elasticity problems very successfully because of its high accuracy. However, there are very few investigations about BEM with concentrated loads. The displacement at the concentrated load point is infinite and traditional elements will lead inaccurate results near the concentrated load point. This paper proposes two types of displacement singular elements to approximate the displacement near concentrated load point, and high accuracy can be obtained wit… Show more

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Cited by 14 publications
(3 citation statements)
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References 17 publications
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“…Wang and Wang [43] obtained similar developments accounting for spline approximation in the boundary integration equation. Recently, Zhou et al [44] proposed singular logarithmic shape functions for approximating tractions and displacements along the element domain. In all cases, the validity and accuracy of the proposed methods require further improvements, which also motivated the developments presented herein.…”
Section: Introductionmentioning
confidence: 99%
“…Wang and Wang [43] obtained similar developments accounting for spline approximation in the boundary integration equation. Recently, Zhou et al [44] proposed singular logarithmic shape functions for approximating tractions and displacements along the element domain. In all cases, the validity and accuracy of the proposed methods require further improvements, which also motivated the developments presented herein.…”
Section: Introductionmentioning
confidence: 99%
“…In this context, the boundary element methods (BEM) and the method of fundamental solutions (MFS) are two representatives of this class of numerical approaches. BEM have been used to solve the two-dimensional Navier-Stokes equation (Sedaghatjoo et al, 2018), elasticity problems (Wei et al, 2019;Zhang et al, 2019), three-dimensional cracks in layered and graded half spaces (Xiao et al, 2019) and structural analysis of aircraft (Oliveira and Gomes, 2019), among many others.…”
mentioning
confidence: 99%
“…The displacement singular elements proposed in [285] are adopted in this research since there is singularity caused by concentrated forces.…”
Section: The Transformation Matrixmentioning
confidence: 99%