A Simple Error Indicator And Adaptive Algorithm For 2D Elastic BEM
Author(s)
H. B. Chen and E. Schnack
Abstract
A simple error indicator and adaptive
algorithm for 2D elastic BEM
H.B. Chen* & E. Schnack^
^ Department of Modern Mechanics,
University of Science and Technology of China, P.R. China
® Institute of Solid Mechanics, Karlsruhe University, Germany
Abstract
A new error indicator is presented which is a measure of the difference of
two solutions for boundary stresses in elastic BEM. The first solution is
obtained by the conventional boundary stress recovery strategy, and the
second is by the use of the regularized hyper-singular BIE for displacement
derivative. The latter is found recently with super accuracy and can be
performed readily under conforming elements. Two numerical examples
are given to show the validity of the new error indicator under h-adaptive
strategy.
1 Introduction
Error estimation and the consequent adaptive mesh refinement are crucial
important in the numerical engineering analysis. In FEM, this subject has
been extensively studied and some reliable
Keywords
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