Comparative study of flux projection type error estimators in elasto-plastic finite element analysis

Ravi P. Tetambe, Sunil Saigal

Research output: Contribution to conferencePaperpeer-review

Abstract

This paper presents a comparative study of a series of flux projection type error estimators for elastio-plastic materials undergoing large strains and large rotations. The error estimators are: L2 norms of stress error, total strain error, equivalent strain error, incremental total strain error per load step, and energy rate norm error, respectively. Numerical examples are presented in two dimensions. The information provided by these error estimators may be used for adaptive mesh refinement and for subsequent data transfer (rezoning) in a large deformation analysis. The error estimators based on the energy rate and the incremental total strain were found to be accurate in the prediction of the discretization error for the test cases considered. The L2 norm of incremental strain error estimator consistently gave the most conservative estimate of error.

Original languageEnglish (US)
Pages545-554
Number of pages10
StatePublished - Dec 1 1994
Externally publishedYes
EventProceedings of the 1994 ASME International Computers in Engineering Conference and Exhibition. Part 1 (of 2) - Minneapolis, MN, USA
Duration: Sep 11 1994Sep 14 1994

Other

OtherProceedings of the 1994 ASME International Computers in Engineering Conference and Exhibition. Part 1 (of 2)
CityMinneapolis, MN, USA
Period9/11/949/14/94

All Science Journal Classification (ASJC) codes

  • Computer Science(all)

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