An anisotropic elastic-plastic constitutive model for single and polycrystalline metals .1. Theoretical developments


Autoria(s): Khan AS; Cheng P
Data(s)

1996

Resumo

An anisotropic elastic-plastic constitutive model for single and polycrystalline metals is proposed. The anisotropic hardening of single crystals, at first, is discussed with the viewpoint of yield surface and a new formulation of it is proposed. Then, a model for the anisotropic hardening of polycrystals is suggested by increasing the number of slip systems and incorporating the interaction of all slip systems. The interaction of grains through grain boundaries is shown to be similar to, and incorporated into, the interaction of slip systems in grains. The numerical predictions and their comparisons with experiments will follow in Part II of this paper.

Identificador

http://dspace.imech.ac.cn/handle/311007/39132

http://www.irgrid.ac.cn/handle/1471x/4912

Idioma(s)

英语

Fonte

International Journal Of Plasticity.1996,12(2):147-162

Palavras-Chave #Cyclic Plasticity #Crystals #Deformation #Aluminum #Copper #Spin
Tipo

期刊论文