MULTI-FRONTAL SOLVER FOR SIMULATIONS OF LINEAR ELASTICITY COUPLED WITH ACOUSTICS

Maciej Paszyński, Tomasz Jurczyk, David Pardo

Abstract


This paper describes the concurrent multi-frontal direct solver algorithm for a multi-physicsFinite Element Method (FEM). The multi-physics FEM utilizes different element sizes aswell as polynomial orders of approximation over element edges, faces, and interiors (elementnodes). The solver is based on the concept of a node, and management of unknowns isrealized at the level of nodes. The solver is tested on a challenging multi-physis problem:acoustics coupled with linear elasticity over a 3D ball shape domain.

Keywords


parallel simulations; multi-frontal solvers; finite element method; linear elasticity coupled with accoustics; 3D mesh generation

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References


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DOI: https://doi.org/10.7494/csci.2011.12.0.85

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