高强度双相钢板韧性断裂准则参数研究  

STUDY ON DUCTILE FRACTURE CRITERION PARAMETERS OF HIGH STRENGTH DUPLEX STEEL PLATE

作　　者：马春辉 张殿平 贡泽飞 刘兴峰 宋辉 李迪[2] MA ChunHui;ZHANG DianPing;GONG ZeFei;LIU XingFeng;SONG Hui;LI Di(China Heavy Truck Group Jinan Power Co.,Ltd.,Jinan 250101,China;School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255000,China)

机构地区：[1]中国重型汽车集团济南动力有限公司,济南250101 [2]山东理工大学交通与车辆工程学院,淄博255000

出　　处：《机械强度》2023年第6期1474-1482,共9页Journal of Mechanical Strength

基　　金：山东省自然科学基金项目(ZR2020QA040);中国重汽产学研合作计划项目(20200810)资助。

摘　　要：为预测不同高强钢板料的韧性断裂失效,通过设计四种高强钢的拉伸、剪切和破裂失效试验,标定了韧性断裂准则的损伤参数;将试验和数值模拟相结合建立了损伤参数与材料属性之间的关系,以减少标定韧性断裂准则损伤参数的困难。为验证该准则在不同应力三轴度下预测高强钢断裂失效的普适性和准确性,通过剪切、拉弯、胀形试验和数值模拟,表明该韧性断裂准则能较好地预测不同先进高强钢的断裂失效。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 

分 类 号：TG142[一般工业技术—材料科学与工程]