Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity
We consider discontinuous Galerkin finite element methods for the discretization of linearized elasticity problems in two space dimensions. Inf-sup stability results on the continuous and discrete level are provided. Furthermore, we derive lower and upper a posteriori error bounds that are robust wi...
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ndltd-LACETR-oai-collectionscanada.gc.ca-QMM.950542014-02-13T03:55:57ZStability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticityBridgeman, LeilaPure Sciences - MathematicsWe consider discontinuous Galerkin finite element methods for the discretization of linearized elasticity problems in two space dimensions. Inf-sup stability results on the continuous and discrete level are provided. Furthermore, we derive lower and upper a posteriori error bounds that are robust with respect to nearly incompressible materials, and can easily be implemented within an automatic mesh refinement procedure. The theoretical results are illustrated with a series of numerical experiments.Nous considérons les méthodes de Galerkin pour la discrétisation des relations déformations-déplacements linéaires en deux dimensions d'espace. Des résultats du stabilité inf-sup sur les niveaux continus et discrets sont fournis. En plus, nous dérivons des limites inférieurs et supérieures pour l'erreur a posteriori qui peuvent être utilisées dans des procédures de maillage automatisées sans difficulté et qui demeurent robustes dans le cas des matériaux qui ne sont presque pas compressibles. Les résultats théoriques sont illustrés par des expériences numériques.McGill UniversityAntony Raymond Humphries (Internal/Supervisor)Thomas Wihler (Internal/Cosupervisor2)2010Electronic Thesis or Dissertationapplication/pdfenElectronically-submitted theses.All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated.Master of Science (Department of Mathematics and Statistics) http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95054 |
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Pure Sciences - Mathematics |
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Pure Sciences - Mathematics Bridgeman, Leila Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity |
description |
We consider discontinuous Galerkin finite element methods for the discretization of linearized elasticity problems in two space dimensions. Inf-sup stability results on the continuous and discrete level are provided. Furthermore, we derive lower and upper a posteriori error bounds that are robust with respect to nearly incompressible materials, and can easily be implemented within an automatic mesh refinement procedure. The theoretical results are illustrated with a series of numerical experiments. === Nous considérons les méthodes de Galerkin pour la discrétisation des relations déformations-déplacements linéaires en deux dimensions d'espace. Des résultats du stabilité inf-sup sur les niveaux continus et discrets sont fournis. En plus, nous dérivons des limites inférieurs et supérieures pour l'erreur a posteriori qui peuvent être utilisées dans des procédures de maillage automatisées sans difficulté et qui demeurent robustes dans le cas des matériaux qui ne sont presque pas compressibles. Les résultats théoriques sont illustrés par des expériences numériques. |
author2 |
Antony Raymond Humphries (Internal/Supervisor) |
author_facet |
Antony Raymond Humphries (Internal/Supervisor) Bridgeman, Leila |
author |
Bridgeman, Leila |
author_sort |
Bridgeman, Leila |
title |
Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity |
title_short |
Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity |
title_full |
Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity |
title_fullStr |
Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity |
title_full_unstemmed |
Stability and a posteriori error analysis of discontinious Galerkin methods for linearized elasticity |
title_sort |
stability and a posteriori error analysis of discontinious galerkin methods for linearized elasticity |
publisher |
McGill University |
publishDate |
2010 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95054 |
work_keys_str_mv |
AT bridgemanleila stabilityandaposteriorierroranalysisofdiscontiniousgalerkinmethodsforlinearizedelasticity |
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1716641791547015168 |