个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:机械工程学院
学科:车辆工程
办公地点:汽车基础实验教学中心A305
联系方式:13591183897
电子邮箱:yingliang@dlut.edu.cn
Thermoplastic behavior and application in the auto body light-weight manufacture of high strength steel
点击次数:
论文类型:期刊论文
发表时间:2014-07-01
发表刊物:Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
收录刊物:EI、PKU、ISTIC、Scopus
卷号:34
页面范围:159-163
ISSN号:10010645
摘要:The hot forming process mechanism of high strength steel and its applications in automobile manufacture were comprehensively studied through experimental test, numerical simulation, and theoretical analysis. According to the thermal-mechanical-transformation coupled constitutive model and nonlinear large deformation analysis, a thermoplastic dynamic explicit finite element formulation was established and the sheet metal forming numerical simulation module, king mesh analysis system (KMAS), was compiled and implemented. The use of the KMAS to simulate and analyze the thermoplastic behaviors of high strength steel of the autobody found that the simulated results of the U-shaped blank were in a good agreement with the experimental results; the yield strength and the ultimate tensile strength of final parts were up to about 1100 MPa and 1500 MPa, respectively. The use of the KMAS to analyze and compare the vehicle crashing found that compared with the cold formed front bumper, the hot formed one could reduce the weight by 36.5%, while its specific energy absorption could increase by 16.0%.