A phenomenological model for microstructural evolution during plastic flow - 10/05/12
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Abstract |
A class of materials is considered that possesses local orthotropic symmetries. Constitutive models with microstructural evolution are developed within a conventional elastic–plastic multiplicative decomposition. In the current configuration, the orthotropic vectors evolve with the microstructural spin, which is the difference between the material and plastic spins. Representations for tensor-valued functions for orthotropic material behavior due to Zheng (1994) are extended to develop constitutive equations for the plastic parts of the rate of stretching and the spin. A key relation is established between components of the plastic part of the rate of stretching and the plastic spin. Comparisons with experiments are promising.
Le texte complet de cet article est disponible en PDF.Keywords : Orthotropic plastic flow, Plastic spin, Microstructural evolution
Plan
Vol 340 - N° 4-5
P. 369-377 - avril 2012 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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