汽车工程学报2026，Vol.16Issue(3)：361-370,10.DOI:10.3969/j.issn.2095-1469.2026.03.03
PHS1500热成形钢断裂性能表征与应用研究
Research on Characterization and Application of Fracture Properties in PHS1500 Hot-Stamped Steel
摘要
Abstract
This study investigates microalloyed PHS1500 hot-stamped steel,characterizing its plastic deformation behavior through quasi-static and dynamic tensile tests.The Gosh-Voce mixed hardening model was employed to describe the deformation behavior of the material.Specimens under six different loading stress states were designed for the experiment,and the fracture strain of the material was obtained using DIC technology.The Modified Mohr-Coulomb(MMC)failure criterion was applied for parameter identification,thereby establishing a high-precision fracture model for PHS1500 steel under complex stress conditions.A drop-weight impact test and finite element simulations were conducted on a front bumper beam made of PHS1500 steel.The failure locations in the test and simulation results are consistent,and the relative error in peak load is only 5.41％.These results show that the proposed hardening and fracture models can effectively describe the plastic deformation and fracture process of PHS1500 steel,providing reliable model support for full-vehicle crash simulation.关键词
PHS1500/混合硬化模型/MMC模型/落锤冲击Key words
PHS1500 steel/mixed hardening model/MMC model/drop-weight impact test分类
矿业与冶金引用本文复制引用
张德良,冯毅,高翔,路洪洲,辛丽娜..PHS1500热成形钢断裂性能表征与应用研究[J].汽车工程学报,2026,16(3):361-370,10.基金项目
国家重点研发计划项目(2016YFB0101607) （2016YFB0101607）
