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Implicit integration scheme for porous viscoplastic potential-based constitutive equations

Msolli, Sabeur and Dalverny, Olivier and Alexis, Joël and Karama, Moussa Implicit integration scheme for porous viscoplastic potential-based constitutive equations. (2011) Procedia Engineering, 10. 1544-1549. ISSN 1877-7058

(Document in English)

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Official URL: http://dx.doi.org/10.1016/j.proeng.2011.04.258


This paper deals with a viscoplastic potential-based model allowing thermomechanical damage behavior modeling of porous materials. The model describes rate dependent effects, hardening, creep as well as defects coalescence and propagation. Kinematic and isotropic hardening effects are taken into account by a set of internal state variables. The integration and implementation of the model into the FE code using a fully implicit integration scheme is exposed. Finally, it 19s used to predict mechanical behaviour degradation of solder layers used in power electronic packaging. Stress-strain behaviour and the evolution of volumic fraction of voids for the material under cyclic loading are presented.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Procedia Engineering website : http://www.journals.elsevier.com/procedia-engineering/
HAL Id:hal-00756328
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Laboratory name:
Laboratoire Génie de Production - LGP (Tarbes, France) - Mécanique des Matériaux, des Structures et Procédés - M2SP
Laboratoire Génie de Production - LGP (Tarbes, France) - Interfaces et Matériaux Fonctionnels - IMF
Deposited On:22 Nov 2012 16:57

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