Published in International Journal of Plasticity Vol. 20 (8-9), pp. 1487-1504, 2004
doi: 10.1016/j.ijplas.2003.11.009

Abstract

In this paper, a stabilized finite element method to deal with incompressibility in solid mechanics is presented. Both elastic and J2-plastic constitutive behavior have been considered. A mixed formulation involving pressure and displacement fields is used and a continuous linear interpolation is considered for both fields. To circumvent the Babuška–Brezzi condition a stabilization technique based on the orthogonal sub-scale method is introduced. The main advantage of the method is the possibility of using linear triangular or tetrahedral finite elements, which are easy to generate for real industrial applications. Results are compared with standard Galerkin and Q1P0 mixed formulations in either elastic or elasto-plastic incompressible problems.

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Published on 04/04/19

DOI: 10.1016/j.ijplas.2003.11.009
Licence: CC BY-NC-SA license

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