摘要
针对超高强钢冷成形开裂的理论分析与预测问题,归纳了现有理论模型的特点、适用范围及其在超高强钢成形断裂失效分析的应用现状,指出由于超高强钢的脆性化倾向导致其断裂分析存在的难点。基于超高强钢的材料特性及其准脆性断裂的本质,对成形开裂理论预测模型与数值模拟方法提出建议。
For the theoretical analysis and prediction problems of cold forming cracking of Ultra-High Strength Steels(UHSS),this paper summarized the characteristics,application range of existing theoretical models,and the current situation of its application in forming cracking failure analysis of UHSS,identified the difficulties in cracking analysis caused by brittleness tendency of UHSS.Based on the material characteristics and essentials of brittleness characteristics of UHSS,the paper gave suggestions regarding cold forming cracking theoretical prediction model and numerical simulation method.
作者
周银
温彤
方刚
路胜海
李冠楠
Zhou Yin;Wen Tong;Fang Gang;Lu Shenghai;Li Guannan(College of Materials Science and Engineering,Chongqing University,Chongqing 400044;China Automotive Engineering Research Institute Co.,Ltd.,Chongqing 401122;Iron and Steel Research Institute of HBIS Group,Shijiazhuang 050023;HBIS Handan Iron&Steel Group Co.,Ltd.,Handan 056015)
出处
《汽车工艺与材料》
2022年第8期19-27,共9页
Automobile Technology & Material
基金
重庆市自然科学基金面上项目(cstc2020jcyj-msxmX0420)。
关键词
高强钢
塑性成形
断裂失效
理论模型
High strength steel
Plastic forming
Fracture failure
Theoretical model
