An improved moving least-squares Ritz method for two-dimensional elasticity problems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)268-282
Journal / PublicationApplied Mathematics and Computation
Volume246
Online published2 Sep 2014
Publication statusPublished - 1 Nov 2014

Abstract

We propose an improved moving least-squares Ritz (IMLS-Ritz) method with its element-free framework developed for studying two-dimensional elasticity problems. Using the IMLS approximation for the field variables, the discretized governing equations of the problem are derived via the Ritz procedure. In the IMLS, an orthogonal function system with a weight function is employed as the basis for construction of its displacement field. By using the element-free IMLS-Ritz method, solutions of the two-dimensional elasticity problems are obtained. The applicability of the element-free IMLS-Ritz method is illustrated through three selected example problems. The convergence characteristics of the method are examined by varying the number of nodes and geometric parameters of these examples. The accuracy of the method is validated by comparing the computed results with the EFG and exact solutions. © 2014 Elsevier Inc. All rights reserved.

Research Area(s)

  • Element-free method, Improved moving least-square, Ritz method, Two-dimensional elasticity