TY - GEN
T1 - A comparative study of flux projection type error estimators in elasto-plastic finite element analysis
AU - Tetambe, Ravi P.
AU - Saigal, Sunil
N1 - Publisher Copyright:
© 1994 American Society of Mechanical Engineers (ASME). All rights reserved.
PY - 1994
Y1 - 1994
N2 - 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: L2norms 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 L2norm of incremental strain error estimator consistently gave the most conservative estimate of error.
AB - 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: L2norms 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 L2norm of incremental strain error estimator consistently gave the most conservative estimate of error.
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U2 - 10.1115/CIE1994-0442
DO - 10.1115/CIE1994-0442
M3 - Conference contribution
AN - SCOPUS:85103469128
T3 - Proceedings of the ASME Design Engineering Technical Conference
SP - 545
EP - 554
BT - ASME 1994 International Computers in Engineering Conference and Exhibition
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 1994 International Computers in Engineering Conference and Exhibition, CIE 1994 and the ASME 1994 8th Annual Database Symposium collocated with the ASME 1994 Design Technical Conferences
Y2 - 11 September 1994 through 14 September 1994
ER -