TY - GEN
T1 - Elasto-plasticity behavior of type 5000 and 6000 aluminum alloy sheets and its constitutive modeling
AU - Tamura, Shohei
AU - Sumikawa, Satoshi
AU - Hamasaki, Hiroshi
AU - Uemori, Takeshi
AU - Yoshida, Fusahito
PY - 2010/9/3
Y1 - 2010/9/3
N2 - To examine the deformation characteristic of type 5000 and 6000 aluminum alloy sheets, uniaxial tension, biaxial stretching and in-plane cyclic tension-compression experiments were performed, and from these, r-values (r 0, r45 and r90), yield loci and cyclic stress-strain responses were obtained. For the accurate description of anisotropies of the materials, high-ordered anisotropic yield functions, such as Gotoh's biquadratic yield function and Barlat's Yld2000-2d, are necessary. Furthermore, for the simulation of cyclic behavior, an advanced kinematic hardening model, such as Yoshida-Uemori model (Y-U model), should be employed. The effect of the selection of material models on the accuracy of the springback prediction was discussed by performing hat bending FE simulation using several yield functions and two types of hardening laws (the isotropic hardening model and Y-U model).
AB - To examine the deformation characteristic of type 5000 and 6000 aluminum alloy sheets, uniaxial tension, biaxial stretching and in-plane cyclic tension-compression experiments were performed, and from these, r-values (r 0, r45 and r90), yield loci and cyclic stress-strain responses were obtained. For the accurate description of anisotropies of the materials, high-ordered anisotropic yield functions, such as Gotoh's biquadratic yield function and Barlat's Yld2000-2d, are necessary. Furthermore, for the simulation of cyclic behavior, an advanced kinematic hardening model, such as Yoshida-Uemori model (Y-U model), should be employed. The effect of the selection of material models on the accuracy of the springback prediction was discussed by performing hat bending FE simulation using several yield functions and two types of hardening laws (the isotropic hardening model and Y-U model).
KW - aluminum alloy sheet
KW - anisotropic yield function
KW - biaxial stretching
KW - in-plane cyclic tension-compression
KW - kinematic hardening
KW - springback
UR - http://www.scopus.com/inward/record.url?scp=77956100009&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956100009&partnerID=8YFLogxK
U2 - 10.1063/1.3457613
DO - 10.1063/1.3457613
M3 - Conference contribution
AN - SCOPUS:77956100009
SN - 9780735408005
T3 - AIP Conference Proceedings
SP - 630
EP - 637
BT - NUMIFORM 2010 - Proceedings of the 10th International Conference on Numerical Methods in Industrial Forming Processes Dedicated to Professor O. C. Zienkiewicz (1921-2009), Volume 1 and 2
T2 - 10th International Conference on Numerical Methods in Industrial Forming Processes Dedicated to Professor O. C. Zienkiewicz (1921-2009), NUMIFORM 2010
Y2 - 13 June 2010 through 17 June 2010
ER -