Qilin Xiong1,2,*, Wen An1,2, Chuanzhi Liu1,2
The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.3, pp. 1-1, 2023, DOI:10.32604/icces.2023.010044
Abstract Shear localization is an important failure mode, or even the dominant mode in metals at high-strain rates.
However, it is a great challenge to accurately predict the occurrence and evolution of shear localization in
metals at the high-strain rate deformation. Here, a dislocation-based crystal plasticity constitutive model
with a crucial mechanism of shear instability, namely dynamic recrystallization, was developed. The
evolution equations of dislocation density and grain size in the process of dynamic recrystallization were
proposed and incorporated into the new constitutive model. The threshold of the stored energy in crystals
was used as the… More >
Login
Register
