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Title of Journal: Comput Mech

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Abbravation: Computational Mechanics

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Springer-Verlag

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DOI

10.1016/j.acthis.2009.09.004

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1432-0924

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A regularized collocation boundary element method

Authors: Michael Messner Martin Schanz
Publish Date: 2011/01/14
Volume: 47, Issue: 6, Pages: 669-680
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Abstract

This article presents a collocation boundary element method for linear poroelasticity based on the first boundary integral equation with only weakly singular kernels This is possible due to a regularization of the strongly singular double layer operator based on integration by parts which has been applied to poroelastodynamics for the first time For the time discretization the convolution quadrature method CQM is used which only requires the Laplace transform of the fundamental solution Furthermore since linear poroelasticity couples a linear elastic with an acoustic material the spatial regularization procedure applied here is adopted from linear elasticity and is performed in Laplace domain due to the before mentioned CQM Finally the spatial discretization is done via a collocation scheme At the end some numerical results are shown to validate the presented method with respect to different temporal and spatial discretizations

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