A Least-Squares Coupling Method Between A Finite Element Code And A Discrete Element Code

Mariotti Christian,Le Piver Francoise, Aubry Ludovic

International Journal for Numerical Methods in Engineering（2015）

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摘要

This paper presents a coupling method between a discrete element code CeaMka3D and a finite element code Sem. The coupling is based on a least-squares method, which adds terms of forces to finite element code and imposes the velocity at coupling particles. For each coupling face, a small linear system with a constant matrix is solved. This method remains conservative in energy and shows good results in applications. Copyright (c) 2014 John Wiley & Sons, Ltd.

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关键词

discrete element method, finite element method, coupling, least-squares method, seismic wave propagation

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