Abstract
This paper presents an implicit Boundary Element Method (BEM) algorithm with the consistent tangent operator (CTO) for axisymmetrically elastoplastic problems and is an extended version of previous work [1] (Bonnet and Mukherjee, Int J Solids Structures 1995; 33: 4461–80). Numerical implementation follows Bonnet and Muhkerjee's treatment. The implicit BEM approach with CTO has successfully been used to solve usual and sensitivity problems in 1-D [1] or 2-D [6] (Poon et al., Engng Anal Bound Elem 1998, in press) elastoplasticity. Numerical results, based on the present method, for a thick-walled cylinder under internal pressure are presented here and are shown to be in good agreement with the analytical solutions.
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