Effects of constitutive model with yield stage and fracture criterion on penetration prediction of Q355B steel target plate
LIN Li1,2, ZHANG Yaoyue1, LIU Zhiying1, XIAO Xinke3, ZHU Yu1
1.School of Civil Engineering, Harbin Institute of Technology, Harbin 150080, Chain；
2.College of Architecture Engineering, Harbin University of Science and Technology, Harbin 150090, China;
3.School of Civil Engineering, Nanyang Institute of Technology, Nanyang 473004, China
Abstract：To verify the effectiveness of the constitutive model considering the yield stage and the Lode angle-dependent fracture criterion, a flat-headed steel projectile with a diameter of 5.95 mm was carried out on a one-stage light gas gun to penetrate the 4 mm thick Q355B steel targets. The fracture behavior and ballistic limit of the projectile penetrating were obtained. Plane strain test and torsion test were conducted. Through numerical simulation calculation, The Lode angle-independent fracture criterion MJC and the Lode angle-dependent ASCE fracture criterion parameter were calibrated, then the correlation between the fracture strain of Q355B steel and the Lode parameter was analyzed. A 3-D numerical simulation were established for the tests in ABAQUS, and verified the effectiveness of the MxJ-CQ constitutive model and ASCE fracture criterion on the deformation and fracture of Q355B steel. The results showed that the prediction use MJC fracture criterion overestimates the fracture strain and ballistic limit is about 38.36% higher than the experimental value. While the ballistic limit and fracture behavior predicted by the ASCE fracture criterion are basically the same as the test results.
林莉1，2,张耀月1，刘志颖1，肖新科3，朱昱1. 含屈服段本构模型和断裂准则对Q355B钢靶板侵彻预报的影响[J]. 振动与冲击, 2022, 41(9): 66-74.
LIN Li1,2, ZHANG Yaoyue1, LIU Zhiying1, XIAO Xinke3, ZHU Yu1. Effects of constitutive model with yield stage and fracture criterion on penetration prediction of Q355B steel target plate. JOURNAL OF VIBRATION AND SHOCK, 2022, 41(9): 66-74.
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