Extremum, convergence and stability properties of the finite-increment problem in elastic-plastic boundary element analysis
The boundary element analysis is formulated by a symmetric (Galerkin weighted-residual, double-integration) approach, rather than by a traditional collocation or by a nonsymmetric-Galerkin approach. The internal variable associative elastoplastic material model is discretized in time by a stepwise-holonomic, backward-difference integration scheme; it is then enforced in a weighted-average sense over cells and reformulated in terms of cell generalized variables.
symmetric (Galerkin weighted-residual, double-integration) approach
stepwise-holonomic, backward-difference integration scheme
scientific article; zbMATH DE number 92646