Transactions of Materials and Heat Treatment

Title：Research on dynamic mechanical properties of HC340LA and its simulation application in collision condition

Authors： Li Fan Huang Jiaqi Sun Qilin Wu Hailong Liu Kai Wang Lixin Cao Jiajian

Unit： Anhui Jianghuai Automobile Co. Ltd. Tsinghua University China Automotive Technology and Research Center

KeyWords： high-speed tensile HC340LA low-alloy and high strength steel Swift-Hockett-Sherby constitutive model simulation calibration drop test

ClassificationCode：U465.1+1

year,vol(issue):pagenumber：2019,44(1):176-181

Abstract：

The tensile tests under different strain rates of HC340LA low-alloy and high strength steel were conducted by universal testing machine, hydraulic servo high-speed tensile testing machine and Split Hopkinson Pressure Bar (SHPB), and the stress-strain curves under different strain rates were obtained to research their dynamic mechanical properties. Then, the secondary development of the high-speed tensile test data was performed, and the curves were fitted and extrapolated by Swift-Hockett-Sherby constitutive model. Furthermore, the material model of HC340LA low-alloy and high strength steel was established, and the drop test of longitudinal beam component was simulated. The simulation results were basically consistent with the drop test results to verify the accuracy of the established material model. At the same time, the high-speed tensile test results of the hydraulic servo high-speed tensile testing machine and the SHPB were compared and analyzed. The results show that the dynamic curves of medium and low strain rates measured by hydraulic servo high-speed tensile testing machine have a better correspondence with the quasi-static curves of materials. And the SHPB is suitable for the higher strain rate test which can accurately measure the tensile strength of materials, but it cannot accurately obtain the actual deformation of materials.

Funds：

李凡（1986-）男，硕士，工程师，E-mail：lifanhust@sina.com

Reference：

[1]姚贵升.车身用钢板的抗碰撞性能[J]. 汽车工艺与材料,2006, (8):15-19.

Yao G S. Anticollision performance of body steel plate[J]. Automobile Technology & Material,2006, (8):15-19.

[2]张伟,李春光,杨建炜, 等. 基于薄壁梁落锤压溃高强钢动态力学性能分析[J]. 锻压技术, 2017, 42(10):174-179.

Zhang W, Li C G, Yang J W, et al. Analysis on dynamic mechanical properties of high strength steel based on thinwalled beam crushing [J]. Forging & Stamping Technology, 2017, 42(10):174-179.

[3]陈川,孙成智,翁洋, 等.汽车用高强度双相钢动态拉伸性能试验研究及仿真[J]. 现代制造工程, 2016, (8):101-105.

Chen C, Sun C Z, Weng Y, et al. Dynamic deformation behavior experiments of dual phase steels for automobile and simulation [J]. Modern Manufacturing Engineering, 2016, (8):101-105.

[4]连昌伟, 陈新平, 俞宁峰. 高伸长率QP钢在高应变速率下的力学特性[J]. 锻压技术, 2017, 42(7):163-168.

Lian C W, Chen X P, Yu N F. Mechanical properties on high elongation steel QP under high strain rate [J]. Forging & Stamping Technology, 2017, 42(7):163-168.

[5]Alan C Thompson. High Strain Rate Characterization of Advanced High Strength Steels[D]. Waterloo, Ontario, Canada: University of Waterloo, 2006.

[6]Tarigopula V, Langseth M, Hopperstad O S, et al. Axial crushing of thinwalled highstrength steel sections[J]. International Journal of Impact Engineering, 2006, 32(5):847-882.

[7]Oliver S, Jones T B, Fourlaris G. Dual phase versus TRIP strip steels: Comparison of dynamic properties for automotive crash performance[J]. Materials Science and Technology, 2007, 23(4):423-431.

[8]韦习成,谢群,符仁钰, 等. TRIP 钢的动态拉伸变形行为研究[J]. 材料科学与工艺, 2008,16(5):625-630.

Wei X C, Xie Q, Fu R Y, et al. Dynamic deformation behaviors of TRIPaided multiphase steels [J]. Materials Science and Technology, 2008,16(5):625-630.

[9]田成达, 李大永, 彭颖红, 等. DP780 高强钢板动态变形力学行为研究[J]. 塑形工程学报, 2008, 15(6):102-106.

Tian C D, Li D Y, Peng Y H, et al. Research on the dynamic deformation behavior of the DP780 advanced high strength steel[J]. Journal of Plasticity Engineering, 2008, 15(6):102-106.

[10]尹斌,王磊,黄毅, 等. 车用高强钢高速拉伸试验与仿真研究[A]. 中国汽车安全技术学术会议论文集[C]. 保定, 2014.

Yin B, Wang L, Huang Y, et al. High speed tensile tests and numerical analysis of high strength steel [A]. Conference of Automotive Safety Technology[C].Baoding, 2014.

[11]惠旭龙,白春玉,刘小川, 等. 宽应变率范围下2A16T4铝合金动态力学性能[J]. 爆炸与冲击, 2017,37(5):871-878.

Xi X L, Bai C Y, Liu X C, et al. Dynamic mechanical properties of 2A16T4 aluminum alloy at wideranging strain rates[J]. Explosion and Shock Waves, 2017, 37(5):871-878.

[12]许全东.霍普金森杆实验数据处理程序设计[D]. 太原：中北大学, 2016.

Xu Q D. Design of Hopkinson Bar Experiment Data Processing Program [D]. Taiyuan: North University of China, 2016.

Service：

【This site has not yet opened Download Service】【Add Favorite】