This paper focuses on a new integration scheme for the von-Mises elastoplastic consitutive model. Based on a time continuous re-formulation of the original model a proper integration scheme which makes use of an integration factor and of exponential maps is introduced. A comparison with previous and well established algorithms, in terms of iso-error maps, shows the main optimality characteristics of the new method.
An optimal integration scheme for the von-Mises constitutive model based on exponential maps / Artioli, E; Auricchio, F; Beirão da Veiga, L. - (2005). (Intervento presentato al convegno COMPLAS 2005, VIII International Conference on Computational Plasticity nel September 5-7).
An optimal integration scheme for the von-Mises constitutive model based on exponential maps
Artioli E;
2005
Abstract
This paper focuses on a new integration scheme for the von-Mises elastoplastic consitutive model. Based on a time continuous re-formulation of the original model a proper integration scheme which makes use of an integration factor and of exponential maps is introduced. A comparison with previous and well established algorithms, in terms of iso-error maps, shows the main optimality characteristics of the new method.
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