Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity

A Galerkin finite element method is developed for non–linear, incompressible (hyper) elasticity, and a posteriori error estimates are derived for both linear functionals of the solution and linear functionals of the stress on a boundary where Dirichlet boundary conditions are applied. A second, high...

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Main Authors: Whiteley, J, Tavener, S
Format: Journal article
Published: 2012
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author Whiteley, J
Tavener, S
author_facet Whiteley, J
Tavener, S
author_sort Whiteley, J
collection OXFORD
description A Galerkin finite element method is developed for non–linear, incompressible (hyper) elasticity, and a posteriori error estimates are derived for both linear functionals of the solution and linear functionals of the stress on a boundary where Dirichlet boundary conditions are applied. A second, higher order method for calculating a linear functional of the stress on a Dirichlet boundary is also presented together with an a posteriori error estimator for this approach. An implementation for a 2D model problem with known solution demonstrates the accuracy of the error estimators. Finally the a posteriori error estimate is shown to provide a basis for effective mesh adaptivity.
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spelling oxford-uuid:c6f0d5c2-fc81-42c6-bb75-435d0fc231da2022-03-27T06:41:27ZError estimation and adaptivity for incompressible, non–linear (hyper–)elasticityJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:c6f0d5c2-fc81-42c6-bb75-435d0fc231daMathematical Institute - ePrints2012Whiteley, JTavener, SA Galerkin finite element method is developed for non–linear, incompressible (hyper) elasticity, and a posteriori error estimates are derived for both linear functionals of the solution and linear functionals of the stress on a boundary where Dirichlet boundary conditions are applied. A second, higher order method for calculating a linear functional of the stress on a Dirichlet boundary is also presented together with an a posteriori error estimator for this approach. An implementation for a 2D model problem with known solution demonstrates the accuracy of the error estimators. Finally the a posteriori error estimate is shown to provide a basis for effective mesh adaptivity.
spellingShingle Whiteley, J
Tavener, S
Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity
title Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity
title_full Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity
title_fullStr Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity
title_full_unstemmed Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity
title_short Error estimation and adaptivity for incompressible, non–linear (hyper–)elasticity
title_sort error estimation and adaptivity for incompressible non linear hyper elasticity
work_keys_str_mv AT whiteleyj errorestimationandadaptivityforincompressiblenonlinearhyperelasticity
AT taveners errorestimationandadaptivityforincompressiblenonlinearhyperelasticity