起重运输机械Issue(4)：111-115,5.
T应力对复合型断裂韧度的影响
石涌超 1陈昆 1刘飞 1黄丕帅1
作者信息
- 1. 武汉理工大学物流工程学院 武汉 430063
- 折叠
摘要
Abstract
As one of the most important fracture parameters of the structural fatigue crack,stress intensity factor can reflect the intensity of the crack-tip stress field.But the experiment finds that T-stress in crack-tip stress field has a significant impact on numerical results of solving the fracture angle.In the paper,interaction integrals in Ansys 15.0 is used to solve the stress intensity factor and T-stress and to analyze the influence of geometrical dimensions of crack structure,load,initial crack length and crack angle on SIF and T-stress.The paper also compares the maximum circumferential stress criterion MTS in the case of taking T-stress into account and traditional MTS,and analyzes the impact of T-stress on the direction of crack propagation.关键词
相互作用积分法/应力强度因子/T应力/最大周向应力准则/数值模拟Key words
interaction integral/stress intensity factor/T-stress/maximum circumferential stress criterion/numerical simulation分类
机械制造引用本文复制引用
石涌超,陈昆,刘飞,黄丕帅..T应力对复合型断裂韧度的影响[J].起重运输机械,2017,(4):111-115,5.
