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Why Boundary Elements?
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Analysis applied approximate solution axisymmetric body forces boundary conditions Boundary Element Formulation Boundary Element Method BOUNDARY NODES Brebbia coefficients collocation point components Consider constant elements coordinates corner defined derivatives DIMENSION dimensional problems discontinuous elements discretized displacements and tractions domain integral elastic elastostatics engineering expression finite element FLUXES AT INTERNAL fundamental solution Gauss quadrature Gaussian quadrature gives Hence INPUT integral equation INTERNAL POINTS Jacobian KODE Laplace equation linear elements matrix nodal values Notice NUMBER OF BOUNDARY number of elements NUMBER OF INTERNAL number of nodes numerical integration O.OOOOOE+OO O.OOOOOE+OO O.OOOOOE+OO O.OOOOOOOE+00 obtained plane strain POCONBE Poisson Poisson equation Poisson's ratio potential problems prescribed PROGRAM quadratic elements right hand side shown in figure singularity solved stress submatrices SUBROUTINE COMPUTES surface SYSTEM OF EQUATIONS technique three dimensional unknown variables weighted residual weighting function written zero