Numerical analysis on singular solutions of the Poisson equation in two-dimensions

Z. Yosibash*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A numerical method for extracting the coefficients of the asymptotic series solution of the Poisson equation in two dimensions in the vicinity of singular points is presented. This method is an extension of that presented in (Szabó and Yosibash 1996) to non-homogeneous boundary value problems, and is general in the sense that it is applicable to almost any type of point singularity. Numerical experiments for crack-tip singularities, re-entrant corner singularities, abrupt change in boundary conditions, and singularities associated with a multi-material inclusion are presented to substantiate the proposed techniques. Constant as well as varying non-homogeneous "right-hand-side" functions are studied.

Original languageEnglish
Pages (from-to)320-330
Number of pages11
JournalComputational Mechanics
Volume20
Issue number4
DOIs
StatePublished - 1997
Externally publishedYes

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