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Boundary element-free method (BEFM) for two-dimensional elastodynamic analysis using Laplace transform

K. M. Liew, Yumin Cheng, S. Kitipornchai

    Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

    Abstract

    In this paper, we present a direct meshless method of boundary integral equation (BIE), known as the boundary element-free method (BEFM), for two-dimensional (21) elastodynamic problems that combines the BIE method for 2D elastodynamics in the Laplace-transformed domain and the improved moving least-squares (IMLS) approximation. The formulae for the BEFM for 2D elastodynamic problems are given, and the numerical procedures are also shown. The BEFM is a direct numerical method, in which the basic unknown quantities are the real solutions of the nodal variables, and the boundary conditions can be implemented directly and easily that leads to a greater computational precision. For the purpose of demonstration, some selected numerical examples are solved using the BEFM. Copyright © 2005 John Wiley & Sons, Ltd.
    Original languageEnglish
    Pages (from-to)1610-1627
    JournalInternational Journal for Numerical Methods in Engineering
    Volume64
    Issue number12
    DOIs
    Publication statusPublished - 28 Nov 2005

    Research Keywords

    • Boundary element-free method
    • Boundary integral equation
    • Elastodynamics
    • Improved moving least-squares approximation
    • Meshless/mesh-free method
    • Moving least-squares approximation
    • Weighted orthogonal function

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