Investigation on the cracking behavior of rolling contact fatigue of 1070 steel

摘要：

The influence of the partial slip conditions on the cracking behavior of the rolling contact fatigue of 1070 steel was analyzed by a newly developed fatigue initiation and growth unified model. The repeated roiling contact process was carried out by translating the normal pressure and the tangential traction across the contact surface step by step. The distributed forces were applied to the nodes as the concentrated nodal forces through the time-dependant amplitude functions.The elastic-plastic stresses and strains were determined by the finite element method with the implement of a robust cyclic plasticity model. And then the initiation position,cracking direction and initiation life of the rolling contact fatigue crack were predicted by a general multiaxial fatigue criterion with the detailed stress-strain responses outputted from the FE analysis. It is indicated that the initiation position of the driving elements is closer to the rolling contact surface than driven elements with the same loading condition. The cracking angle increases with the decreasing of the partial slip coefficient,while the distance between the initiation position and the rolling contact surface as well as the initiation life have the reverse trend.

关键词： Rolling contact fatigue Cracking behavior Partial slip condition Multiaxial fatigue damage criterion

作者: Lijian Zhuang Xiaogui Wang Xuedong Chen Zengliang Gao

作者单位: Hefei General Machinery Research Institute,Hefei 230031,China;Zhejiang University of Technology,The Zhejiang University of Technology,The MOE Key Laboratory of Mechanical Manufacture and Automation,Ha Hefei General Machinery Research Institute,Hefei 230031,China

会议类型: 国际会议

会议名称: Fracture Mechanics and Applications 2008(国际断裂力学2008年年会)(FM2008)

会议地点: 杭州

会议语种:英文

页码: 463-467

在线出版日期: 2008-10-31（万方平台首次上网日期，不代表论文的发表时间）