A hybrid method to update stress for perfect von-Mises plasticity coupled with Lemaitre damage mechanics
ISSN: 0264-4401
Article publication date: 12 August 2019
Issue publication date: 12 August 2019
Abstract
Purpose
The purpose of this paper is to suggest a robust hybrid method for updating the stress and plastic internal variables in plasticity considering damage mechanics.
Design/methodology/approach
By benefiting the properties of the well-known explicit and implicit integrations, a new mixed method is derived. In fact, the advantages of the mentioned techniques are used to achieve an efficient integration.
Findings
The numerical studies demonstrate the high precision and robustness of the suggested algorithm.
Research limitations
The perfect von-Mises plasticity together with Lemaitre damage model is considered within the realm of small deformations.
Practical implications
Updating stress and plastic internal variables are of utmost importance in elastoplastic analyses of structures. The accuracy and efficiency of stress-updating methods significantly affect the final outcomes of nonlinear analyses.
Originality/value
The idea which is used to derive the hybrid method leads to an efficient integration method for updating the constitutive equations of the damage mechanics.
Keywords
Citation
Tavoosi, M., Sharifian, M. and Sharifian, M. (2019), "A hybrid method to update stress for perfect von-Mises plasticity coupled with Lemaitre damage mechanics", Engineering Computations, Vol. 37 No. 2, pp. 705-729. https://doi.org/10.1108/EC-01-2019-0007
Publisher
:Emerald Publishing Limited
Copyright © 2019, Emerald Publishing Limited