An fast and effective error check for the FE stresses, based on the unit load theorem is proposed. The relative stress error is estimated by the relative error between displacements obtained by the unit load theorem and by the FE method. Analytical examples and numerical applications are presented.
A fast error check for structural analysis using the virtual force principle
SCHREFLER, BERNHARD;ZAVARISE, GIORGIO;GORI, ROBERTO;
1993
Abstract
An fast and effective error check for the FE stresses, based on the unit load theorem is proposed. The relative stress error is estimated by the relative error between displacements obtained by the unit load theorem and by the FE method. Analytical examples and numerical applications are presented.
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