A physical model describing the visco-plastic behaviour of aluminium under tension and under creep for T> 0.4 T_m

摘要

Numerical models describing the visco-plastic flow of metals find widespread use in technological applications such as deep drawing processes. The equations presented in this work enable prediction of the behaviour under various deformation conditions of strain rate and temperature. The internal variables approach associated with several microstructural parameters of the material provides a good understanding of the hardening phenomenon.