Linear stationary iterative methods for the force-based quasicontinuum approximation

Mitchell Luskin, Christoph Ortner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Force-based multiphysics coupling methods have become popular since they provide a simple and efficient coupling mechanism, avoiding the difficulties in formulating and implementing a consistent coupling energy. They are also the only known pointwise consistent methods for coupling a general atomistic model to a finite element continuum model. However, the development of efficient and reliable iterative solution methods for the force-based approximation presents a challenge due to the non-symmetric and indefinite structure of the linearized force-based quasicontinuum approximation, as well as to its unusual stability properties. In this paper, we present rigorous numerical analysis and computational experiments to systematically study the stability and convergence rate for a variety of linear stationary iterative methods.

Original languageEnglish (US)
Title of host publicationNumerical Analysis of Multiscale Computations - Proceedings of a Winter Workshop at the Banff International Research Station 2009
EditorsOlof Runborg, Bjorn Engquist, Yen-Hsi R. Tsai
PublisherSpringer Verlag
Pages331-368
Number of pages38
ISBN (Print)9783642219429
DOIs
StatePublished - 2012
EventWorkshop on Numerical Analysis and Multiscale Computations, 2009 - Banff, Canada
Duration: Dec 6 2009Dec 11 2009

Publication series

NameLecture Notes in Computational Science and Engineering
Volume82
ISSN (Print)1439-7358

Other

OtherWorkshop on Numerical Analysis and Multiscale Computations, 2009
CountryCanada
CityBanff
Period12/6/0912/11/09

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