个人信息Personal Information
副研究员
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:土木工程系
学科:桥梁与隧道工程
办公地点:桥梁与隧道安全技术国家与地方联合实验室 301
联系方式:0411-84707232转8003
电子邮箱:wanghuili@dlut.edu.cn
Fatigue performance analysis of frictional type high strength bolts of overlapped joints
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论文类型:会议论文
发表时间:2013-06-16
收录刊物:EI、Scopus
卷号:3
页面范围:2132-2137
摘要:According to the fatigue crack extension theory of the fracture mechanics, this paper analysis the relationship between the property of the high-strength bolts and the connection surface friction coefficient, as well as the relationship between the property of the high-strength bolts and temperature. The fatigue life and fatigue damage degree under different anti-friction coefficient and different temperature are calculated by high-strength bolt three-dimension FEM model. After recycling for the same times, the fatigue life will decrease with the increase of the anti-fiction coefficient as well as the temperature. The bigger the anti-friction coefficient is, the more serious the fatigue damage is. The higher the temperature is, the more serious the fatigue damage degree is. With the increase of the anti-friction coefficient, the structure safety factor will decrease, for the increased anti-friction coefficient makes the connection surface geometric discontinuities degree become serious, then the crack extension rate will be faster. With the increase of the temperature, the structure safety factor will also decrease. The conclusions can be used as a reference for the afterwards fatigue design about such components.