A Fully Regularized Direct Boundary Formulation For Three-dimensional Elastoplastic Problems
Price
Free (open access)
Transaction
Volume
21
Pages
9
Published
1998
Size
626 kb
Paper DOI
10.2495/BE980101
Copyright
WIT Press
Author(s)
B. Burghardt & A. Le Van
Abstract
A fully regularized direct boundary formulation for three-dimensional elastoplastic problems B. Burghardt & A. Le Van en'a%%, Eco/e CWra/e 6/e Email: Bertrand.Burghardt@ec-nantes.fr Abstract The present work is devoted to a fully regularized boundary formulation for three-dimensional elastoplastic problems. The proposed algorithm is based on an integral representation of the strain field in which no integrals have to be understood in the principal value sense. Following the current ap- proach used in Finite Element procedures, an initial strain formulation and an implicit integration scheme are considered. The elastoplastic relation- ships take into account an isotropic and linear kinematic hardening material satisfying the von Mises criterion. 1 Introduction It is well established that the boundary formulation can be applied to various problems presenting geometrical or material nonlineari- ties (Mukherjee & Chandra [7]).
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