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A boundary element method for three-dimensional elastoplastic problems. (English) Zbl 0946.74072

The paper presents an efficient implementation of the boundary element method for three-dimensional elastoplasticity problems. Various techniques are used for evaluation of singular integrals. The Cauchy principal value integrals for volume cell integration are evaluated using the Taylor series expansion method. Boundary stresses are evaluated by differentiating the nodal displacements. The authors use an explicit version of initial strain formulation to deal with nonlinear characteristics of the problem, which is solved by an iterative load-incremental algorithm.

MSC:

74S15 Boundary element methods applied to problems in solid mechanics
74C05 Small-strain, rate-independent theories of plasticity (including rigid-plastic and elasto-plastic materials)
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