基于ABAQUS的H13钢裂纹扩展数值模拟Crack propagation simulation of H13 steel based on ABAQUS
史云龙;张钊;吴红兵;
摘要(Abstract):
模具的断裂及裂纹萌生与扩展问题一直是影响模具寿命的重要因素。在扩展有限元法基本原理的基础上,以ABAQUS为平台,利用XFEM模拟模具钢H13的裂纹扩展问题,得到单边缺口拉伸试件的裂纹扩展过程及裂纹尖端的应力分布和变化曲线。研究载荷、裂纹长度、构件几何参数对裂纹尖端应力强度因子的影响,输出静态裂纹的应力强度因子,并与解析解进行比较。结果表明,扩展有限元法能够有效进行裂纹开裂及扩展过程的仿真。数值模拟不受单边边界条件的制约,无需单元的局部加密,有效减少单元数量,节省了计算成本。
关键词(KeyWords): H13钢;XFEM;裂纹扩展;应力强度因子;数值模拟
基金项目(Foundation): 浙江省自然科学基金资助项目(Y1110262);; 国家自然科学基金资助项目(51275468)
作者(Author): 史云龙;张钊;吴红兵;
Email:
DOI: 10.14024/j.cnki.1004-244x.2015.02.011
参考文献(References):
- [1]Zhang Milan,Xing Shuming,Xin Qiao,et al.Abnormal failure analysis of H13 punches in steel squeeze casting process[J].International Journal of Iron and Steel Research,2008,15(3):47-51.
- [2]庄茁,柳占立,成彬彬,等.扩展有限单元法[M].北京:清华大学出版社,2012:2-4.
- [3]Belytschko T,Black T.Elastic crack growth in finite elements with minimal remeshing[J].International Journal for Numerical Methods in Engineering,1999,45:601-620.
- [4]方修君,金峰.基于ABAQUS平台的扩展有限元法[J].工程力学,2007,24(7):6-10.
- [5]尹冠生,周肖飞.基于XFEM的损伤扩展模拟[J].长安大学学报(自然科学版),2013,33(2):68-72.
- [6]Giner E,Sukumar N,Tarancon J E,et al.An Abaqus implementation of the extended finite element method[J].Engineering Fracture Mechanics,2009,76(3):347-368
- [7]章青,刘宽,夏晓舟.广义扩展有限元法及其在裂纹扩展分析中的应用[J].计算力学学报,2012,29(3):427-432.
- [8]Sukumar N,Chopp D L,Moran B.Extended finite element method and fast marching method for three-dimensional fatigue crack propagation[J].Engineering Fracture Mechanics,2003,70:29-48.
- [9]Sukumar N,Moes N,Moran B,et al.Extended finite element method for three-dimensional crack modeling[J].International Journal for Numerical Methods in Engineering,2000,48:1549-1570.
- [10]Schollmann M,Richard H A,Kullmer g,et al.A new criterion for the prediction of crack development in multiaxially loaded structures[J].International Journal of Fracture,2002,117:129-141.
- [11]李庆芬,齐桂营,朱莉,等.MCTS试件的三维有限元计算断裂分析[J].哈尔滨工程大学学报,2011,32(9):1157-1161.
- [12]中国航空研究院.应力强度因子手册[M].北京:科学出版社,1993:119-120.