Journal
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
Volume 105, Issue -, Pages 267-278Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.enganabound.2019.04.027
Keywords
Boundary element method; Radial integration method; Scalar wave equation; Time integration
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A radial integration boundary element method is applied to the analysis of two-dimensional scalar wave equation problem. Based on two kinds of fundamental solutions, two types of the integral equation is derived for solution of wave problem. Time domain integrals which are imposed to the solution are implemented using an efficient modified formulation of the radial integration method for concave shapes which was recently introduced in [1]. This boundary only element approach is applied to Newmark and Houbolt time stepping methods. Performance of the implemented formulation is evaluated using several numerical examples.
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