MA ChunHui, ZHANG DianPing, GONG ZeFei, et al. STUDY ON DUCTILE FRACTURE CRITERION PARAMETERS OF HIGH STRENGTH DUPLEX STEEL PLATE[J]. Journal of Mechanical Strength , 2023,45(6):1474-1482.
MA ChunHui, ZHANG DianPing, GONG ZeFei, et al. STUDY ON DUCTILE FRACTURE CRITERION PARAMETERS OF HIGH STRENGTH DUPLEX STEEL PLATE[J]. Journal of Mechanical Strength , 2023,45(6):1474-1482. DOI: 10.16579/j.issn.1001.9669.2023.06.027.
In order to predict the ductile fracture failure of different high-strength steel plates
the damage parameters of the ductile fracture criterion were calibrated by designing the tensile
shear and fracture failure tests of four high-strength steel plates. The relation between damage parameters and material properties is established by combining test and numerical simulation
so as to reduce the difficulty of calibrating the damage parameters of ductile fracture criterion. In order to verify the universality and accuracy of the criterion in predicting the fracture failure of high-strength steel under different stress triaxiality
through shear
tension bending
bulging test and numerical simulation. The results show that the ductile fracture criterion can better predict the fracture failure of different advanced high strength steels.
关键词
高强双相钢韧性断裂准则应力三轴度参数标定数值模拟
Keywords
High strength dual phase steelDuctile fracture criterionStress triaxialityParameter calibrationNumerical simulation