TY - JOUR
T1 - Plastic behaviour and forming limit during biaxial compressions of magnesium alloy AZ31 at room temperature
AU - Shimizu, I.
AU - Tada, N.
N1 - Publisher Copyright:
© 2010 Owned by the authors, published by EDP Sciences.
PY - 2010/6/9
Y1 - 2010/6/9
N2 - The plastic behaviour and compressive fracture of AZ31 magnesium alloy were examined at room temperature. The uniaxial compression tests and biaxial compression tests along linear and nonlinear strain paths were carried out until fracture using a unique biaxial compression testing machine developed by author. The results revealed the evolution of plastic anisotropy in biaxial compressions, that is the strain path dependency of work hardening. The adaptability of several forming limit criteria to the compressive fracture of AZ31 alloy was discussed. It was found that the uniform estimation of compressive forming limits by uniaxial and biaxial compressions was difficult by Freudenthal criterion and Oyane criterion. The result of Tresca energy criterion suggested that the criterion based on shear stress has possibility to predict the compressive forming limits at room temperature of AZ31 alloy.
AB - The plastic behaviour and compressive fracture of AZ31 magnesium alloy were examined at room temperature. The uniaxial compression tests and biaxial compression tests along linear and nonlinear strain paths were carried out until fracture using a unique biaxial compression testing machine developed by author. The results revealed the evolution of plastic anisotropy in biaxial compressions, that is the strain path dependency of work hardening. The adaptability of several forming limit criteria to the compressive fracture of AZ31 alloy was discussed. It was found that the uniform estimation of compressive forming limits by uniaxial and biaxial compressions was difficult by Freudenthal criterion and Oyane criterion. The result of Tresca energy criterion suggested that the criterion based on shear stress has possibility to predict the compressive forming limits at room temperature of AZ31 alloy.
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U2 - 10.1051/epjconf/20100616001
DO - 10.1051/epjconf/20100616001
M3 - Conference article
AN - SCOPUS:84921342686
VL - 6
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
SN - 2101-6275
M1 - 16001
T2 - 14th International Conference on Experimental Mechanics, ICEM 2014
Y2 - 4 July 2010 through 9 July 2010
ER -