Creator:

Huerta, Antonio ; Rodríguez-Ferran, Antonio ; Díez, Pedro

Contributor:

Sofonea, Mircea - ed. ; Viano, Juan M. - ed.

Title:

Error estimation and adaptivity for nonlinear FE analysis

Subtitle:

Mathematical Modelling and Numerical Analysis in Solid Mechanics

Group publication title:

AMCS, volume 12 (2002)

Subject and Keywords:

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

Abstract:

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.

Publisher:

Zielona Góra: Uniwersytet Zielonogórski

Date:

2002

Resource Type:

artykuł

Pages:

59-70

Source:

AMCS, volume 12, number 1 (2002) ; click here to follow the link

Language:

eng

License CC BY 4.0:

click here to follow the link

Rights:

Biblioteka Uniwersytetu Zielonogórskiego