先进高强度双相钢车身板的韧性断裂准则分析

赵连星; 李迪; 孙彩凤; 梁云霞; 郁敏; 徐家川

doi:10.13433/j.cnki.1003-8728.2017.0622

先进高强度双相钢车身板的韧性断裂准则分析

doi: 10.13433/j.cnki.1003-8728.2017.0622

1.
山东理工大学交通与车辆工程学院, 山东淄博 255049

基金项目:

上海市复杂薄板结构数字化制造重点实验室开放基金项目（2011004）资助

详细信息

作者简介:
赵连星(1987-),硕士研究生,研究方向为车身数字化设计与制造,zhaolianxing@126.com

通讯作者:
李迪(联系人),副教授,博士,hahali@sdut.edu.cn

计量
- 文章访问数: 147
- HTML全文浏览量: 26
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2015-06-17
- 刊出日期: 2017-06-05

Analysis of Ductile Fracture Criteria of Advanced High Strength Dual-phase Steels

1.
School of Transportation and Vehicle Engineering, Shandong University of Technology, Shandong Zibo 255049, China

摘要

摘要: 先进高强度钢在冲压成形过程中由于剪切和颈缩竞争导致出现独有的断裂现象，困扰着车身板的成形工艺设计，阻碍着双相钢零件的尺寸精度与成形质量的进一步提高。修正的摩尔库伦准则可以预测双相钢的韧性断裂，但其参数的确定需要较多的试验，本文中采用一个既方便工程应用又统一拉伸和剪切这两种现象的韧性断裂准则，并编写基于Hill'48各向异性屈服准则的Abaqus Vumat子程序，模拟DP780拉弯成形实验，通过比较这两种韧性断裂准则，发现该韧性断裂准则可以用于双相钢的冲压成形的断裂预测，误差满足工程要求。
- 先进高强度双相钢 /
- 冲压 /
- 韧性断裂准则 /
- VUMAT
Abstract: In stamping, the unique fracture phenomenon of advanced high-strength steel appears due to the competition of shear and necking, which affects the forming process of car plate design, prevents the dimensional accuracy and further improvement of forming quality of dual phase steel parts. The modified Mohr coulomb criterion can predict the ductile fracture of dual phase steel, but it is not easy to determine its parameters. A ductile fracture criterion is put forward which is both easy to use in engineering and unify the phenomenon of tensile and shear, and the vectorized user material subroutine (VUMAT) of ABAQUS is written based on Hill'48 anisotropic yield criterion, and the experiment of DP780 stretch bending forming is simulated by comparing the two ductile fracture criterions, finding that new standards can be used for predicting the stamping fracture of dual phase steel, and the errors meet engineering requirements.
- advanced high strength dual-phase steels /
- stamping /
- ductile failure criterion /
- VUMAT

HTML全文

参考文献(15)

[1]	吴军,叶卫平.双相钢的研究现状及应用展望[J].钢铁研究,1994,(2):51-57,50 Wu J, Ye W P. Current status and trend of development in research and application of dual phsae steel[J]. Research on Iron & Steel, 1994,(2):51-57,50 (in Chinese)
[2]	Huo G, Cen Y M, Li Z X, et al. Effects of heat treatment process parameters on microstructure and mechanical properties of DP440 cold rolled strip[J]. Journal of Iron and Steel Research, International, 2014,21(5):509-516
[3]	符仁钰,许珞萍,陈洁,等.ST14双相钢钢板的组织与性能研究[J].机械工程材料,2000,24(1):23-25 Fu R Y, Xu L P, Chen J, et al. Study on the microstructures and properties of ST14 dual phase steel sheets[J]. Materials for Mechanical Engineering, 2000,24(1):23-25 (in Chinese)
[4]	黄晓忠,陈劼实,陈军.板料冲压成形破坏判断准则的研究进展[J].机械工程学报,2011,47(4):23-31 Huang X Z, Chen J S, Chen J. Review on fracture criterion of sheet metal forming[J]. Journal of Mechanical Engineering, 2011,47(4):23-31 (in Chinese)
[5]	Luo M, Wierzbicki T. Numerical failure analysis of a stretch-bending test on dual-phase steel sheets using a phenomenological fracture model[J]. International Journal of Solids and Structures, 2010, 47(22-23): 3084-3102
[6]	司马爱平.应力三维度对材料断裂破坏的影响[D].上海:上海交通大学,2009 Sima A P. Influence of stree triaxiality on material fracture[D]. Shanghai: Shanghai Jiao Tong University, 2009 (in Chinese)
[7]	李梅,赵亦希,胡星,等.先进高强度双相钢汽车板剪切断裂实验[J].上海交通大学学报,2011,45(11):1695-1699 Li M, Zhao Y X, Hu X, et al. Experimental study of shear fracture on advanced high strength dual-phase steels[J]. Journal of Shanghai Jiaotong University, 2011,45(11):1695-1699 (in Chinese)
[8]	何春锋,赵亦希,黄胜.高强度双相钢板拉弯成形断裂的微观组织形貌分析[J].上海交通大学学报,2014,48(5):618-623 He C F, Zhao Y X, Huang S. Microstructural study of advanced high strength dual-phase steels sheet under stretch-bending forming process[J]. Journal of Shanghai Jiaotong University, 2014,48(5):618-623 (in Chinese)
[9]	陈继恩.基于应力三轴度的材料失效研究[D].武汉:华中科技大学,2012 Chen J E. Research of material failure basic on stress triaxiality[D]. Wuhan: Huazhong University of Science and Technology, 2012 (in Chinese)
[10]	聂义珠.应力状态对材料破坏影响的试验和数值模拟研究[D].南宁:广西大学,2008 Nie Y Z. Influence of stress-state on material damage-experimental and numerical investigation[D]. Nanning: Guangxi University, 2008 (in Chinese)
[11]	Hill R. A theory of the yielding and plastic flow of anisotropic metals[J]. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1948,193(1033):281-297
[12]	徐丹.各向异性屈服准则及其在汽车覆盖件中的应用[D].武汉:华中科技大学,2007 Xu D. Research and application of anisotropy yield criterion in automotive panels[D]. Wuhan: Huazhong University of Science and Technology, 2007 (in Chinese)
[13]	苏维国,穆志韬,刘涛,等.基于损伤力学的金属材料韧性断裂失效分析[J].宇航材料工艺,2014,44(2):24-28 Su W G, Mu Z T, Liu T, et al. Fracture failure analysis of metal ductile metals based on continuum damage Mechanism[J]. Aerospace Materials & Technology, 2014,44(2):24-28 (in Chinese)
[14]	黄建科.金属成形过程的细观损伤力学模型及韧性断裂准则研究[D].上海:上海交通大学,2009 Huang J K. Study on Meso-damage model and ductile fracture criterion in metal forming processes[D]. Shanghai: Shanghai Jiao Tong University, 2009 (in Chinese)
[15]	张冬娟.板料冲压成形回弹理论及有限元数值模拟研究[D].上海:上海交通大学,2007 Zhang D J. Theoretical and numerical study on springback prediction in sheet metal forming[D]. Shanghai: Shanghai Jiao Tong University, 2007 (in Chinese)