Comparison Of Different Error Measures For Adaptive Finite Element Techniques Applied To Contact Problems Involving Large Elastic Strains
Price
Free (open access)
Transaction
Volume
24
Pages
12
Published
1999
Size
1,077 kb
Paper DOI
10.2495/CON990211
Copyright
WIT Press
Author(s)
P. Wriggers, A. Reiger
Abstract
Finite element methods (FEM) are flexible tools which can be applied to solve contact problems with arbitrary geometries. As in any numerical method, the solutions obtained with FEM are only approximate. Errors occur e. g. due to the choice of the ansatz space and the approximation of the geometry. In general it is necessary to automatically control the error inherited in the method to obtain reliable solutions. This is especially true in case of nonlinear contact problems since geometry and contact surface can change substantially during the deformation process. Thus the refinement process needed for an accurate analysis cannot be controlled by the user beforehand. Here an adaptive finite
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