Controlled cost of adaptive mesh refinement in practical 3D finite element analysis

In this paper, attention is restricted to mesh adaptivity. Traditionally, the most common mesh adaptive strategies for linear problems are used to reach a prescribed accuracy. This goal is best met with an h-adaptive scheme in combination with an error estimator. In an industrial context, the aim of...

Full description

Saved in:
Bibliographic Details
Published inAdvances in engineering software (1992) Vol. 38; no. 11; pp. 846 - 859
Main Authors Bellenger, Emmanuel, Coorevits, Patrice
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.11.2007
Subjects
Computation cost
Discretization errors
Industrial context
Mesh adaptivity
Computation cost
Industrial context
Mesh adaptivity
Discretization errors
Online AccessGet full text

Cover

More Information
Summary:In this paper, attention is restricted to mesh adaptivity. Traditionally, the most common mesh adaptive strategies for linear problems are used to reach a prescribed accuracy. This goal is best met with an h-adaptive scheme in combination with an error estimator. In an industrial context, the aim of the mechanical simulations in engineering design is not only to obtain greatest quality but more often a compromise between the desired quality and the computation cost (CPU time, storage, software, competence, human cost, computer used). In this paper we propose the use of alternative mesh refinement with an h-adaptive procedure for 3D elastic problems. The alternative mesh refinement criteria allow to obtain the maximum of accuracy for a prescribed cost. These adaptive strategies are based on a technique of error in constitutive relation (the process could be used with other error estimators) and an efficient adaptive technique which automatically takes into account the steep gradient areas. This work proposes a 3D method of adaptivity with the latest version of the INRIA automatic mesh generator GAMHIC3D.
ISSN:0965-9978
DOI:10.1016/j.advengsoft.2006.08.035