TY - JOUR
T1 - Springback prediction of titanium tube bending considering Bauschinger effect and Young's modulus variation
AU - Ma, J.
AU - Yang, H.
AU - Li, H.
AU - Tao, Z. J.
AU - Li, G. J.
N1 - Publisher Copyright:
© Published under licence by IOP Publishing Ltd.
PY - 2016/9/1
Y1 - 2016/9/1
N2 - High strength titanium bent tubes present promising usages in advanced aircraft and spacecraft to achieve lightweight and improve overall performance. However, the high ratio of yield strength to Young's modulus results in significant springback in bending, which limits their forming accuracy. In this work, the Bauschinger effect and nonlinear unloading behavior of high strength Ti-3Al-2.5V tube are experimentally investigated. Then, to describe such behaviors, the Yoshida-Uemori (Y-U) two-surface hardening model and Chord unloading model are introduced into the elastoplastic constitutive framework and numerically implemented. Taking rotary draw (RDB) bending as a case, the springback angles are predicted and analyzed by comparison with the experimental results.
AB - High strength titanium bent tubes present promising usages in advanced aircraft and spacecraft to achieve lightweight and improve overall performance. However, the high ratio of yield strength to Young's modulus results in significant springback in bending, which limits their forming accuracy. In this work, the Bauschinger effect and nonlinear unloading behavior of high strength Ti-3Al-2.5V tube are experimentally investigated. Then, to describe such behaviors, the Yoshida-Uemori (Y-U) two-surface hardening model and Chord unloading model are introduced into the elastoplastic constitutive framework and numerically implemented. Taking rotary draw (RDB) bending as a case, the springback angles are predicted and analyzed by comparison with the experimental results.
UR - http://www.scopus.com/inward/record.url?scp=84989267374&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/734/3/032113
DO - 10.1088/1742-6596/734/3/032113
M3 - 会议文章
AN - SCOPUS:84989267374
SN - 1742-6588
VL - 734
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 3
M1 - 032113
T2 - 10th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, NUMISHEET 2016
Y2 - 4 September 2016 through 9 September 2016
ER -