TY - JOUR
T1 - Deformation and strength characterization of Mg alloys with rolled crystallographic textures by crystal plasticity finite element method
AU - Ishida, Tomohiro
AU - Shibutani, Shinpei
AU - Kato, Junji
AU - Terada, Kenjiro
AU - Kyoya, Takashi
AU - Ando, Daisuke
AU - Koike, Junichi
PY - 2013
Y1 - 2013
N2 - A series of crystal plasticity finite element simulations are conducted to understand the grain-scale deformation process with crystallographic slip and to elucidate the development mechanism of the macroscopic yield strength for magnesium alloys. For the comparative study, different values of initial critical resolved shear stress are set for the basal slip system in a polycrystalline aggregate FE model. The main finding in this study is that the formation of shear bands with localized deformation, which are associated with the macroscopic strength and ductility, is strongly related to the evolution of deformation resistance of separate slip systems and depends on the latent hardening characteristics of the prismatic slip system.
AB - A series of crystal plasticity finite element simulations are conducted to understand the grain-scale deformation process with crystallographic slip and to elucidate the development mechanism of the macroscopic yield strength for magnesium alloys. For the comparative study, different values of initial critical resolved shear stress are set for the basal slip system in a polycrystalline aggregate FE model. The main finding in this study is that the formation of shear bands with localized deformation, which are associated with the macroscopic strength and ductility, is strongly related to the evolution of deformation resistance of separate slip systems and depends on the latent hardening characteristics of the prismatic slip system.
KW - Anisotropy
KW - Deformation resistance
KW - Finite element method
KW - HCP
KW - Magnesium alloy
KW - Numerical simulation
KW - Slip system
KW - Strength
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U2 - 10.1299/kikaia.79.1840
DO - 10.1299/kikaia.79.1840
M3 - Article
AN - SCOPUS:84891882519
SN - 0387-5008
VL - 79
SP - 1840
EP - 1851
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
IS - 808
ER -