NURBS plasticity: non-associated plastic flow [figure data]

W.M. Coombs & Y. Ghaffari Motlagh
This paper extends the non-uniform rational basis spline (NURBS) plasticity frame- work of Coombs et al. [11] and Coombs and Ghaffari Motlagh [10] to include non-associated plastic flow. The NURBS plasticity approach allows any smooth isotropic yield envelope to be represented by a NURBS surface whilst the numerical algorithm (and code) remains unchanged. This paper provides the full theoretical and algorithmic basis of the non-associated NURBS plasticity approach and demonstrates the predictive capability of the...
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