Error estimation and adaptivity for nonlinear FE analysis

• Autorzy: Antonio Huerta , Antonio Rodríguez-Ferran , Pedro Díez
• Języki publikacji: EN

Abstrakty

EN

An adaptive strategy for nonlinear finite-element analysis, based on the combination of error estimation and h-remeshing, is presented. Its two main ingredients are a residual-type error estimator and an unstructured quadrilateral mesh generator. The error estimator is based on simple local computations over the elements and the so-called patches. In contrast to other residual estimators, no flux splitting is required. The adaptive strategy is illustrated by means of a complex nonlinear problem: the failure analysis of a single-edge notched beam. The quasi-brittle response of concrete is modelled by means of a nonlocal damage model.

Słowa kluczowe

EN

damage models; adaptivity; nonlinearity; quality of FE solutions; error estimation; finite elements

• Wydawca: University of Zielona Gora Press
• Czasopismo: International Journal of Applied Mathematics and Computer Science
• Rocznik: 2002
• Tom: 12
• Numer: 1
• Strony: 59-70

Daty

wydano

2002

otrzymano

2001-09-01

poprawiono

2002-01-01

Twórcy

autor

Antonio Huerta

• Departament de Matemàtica Aplicada III, E.T.S. de Ingenieros de Caminos, Edifici C2, Campus Nord, Universitat Politècnica de Catalunya, E08034 Barcelona, Spain

autor

Antonio Rodríguez-Ferran

• Departament de Matemàtica Aplicada III, E.T.S. de Ingenieros de Caminos, Edifici C2, Campus Nord, Universitat Politècnica de Catalunya, E08034 Barcelona, Spain

autor

Pedro Díez

• Departament de Matemàtica Aplicada III, E.T.S. de Ingenieros de Caminos, Edifici C2, Campus Nord, Universitat Politècnica de Catalunya, E08034 Barcelona, Spain

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