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
High-Strength Bolt Corrosion Fatigue Life Model and Application
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论文类型:期刊论文
发表时间:2014-07-01
发表刊物:SCIENTIFIC WORLD JOURNAL
收录刊物:SCIE、PubMed、Scopus
卷号:2014
页面范围:567318
ISSN号:1537-744X
摘要:The corrosion fatigue performance of high-strength bolt was studied. Based on the fracture mechanics theory and the Gerberich-Chen formula, the high-strength bolt corrosion fracture crack model and the fatigue life model were established. The high-strength bolt crack depth and the fatigue life under corrosion environment were quantitatively analyzed. The factors affecting high-strength bolt corrosion fatigue life were discussed. The result showed that the high-strength bolt corrosion fracture biggest crack depth reduces along with the material yield strength and the applied stress increases. The material yield strength was the major factor. And the high-strength bolt corrosion fatigue life reduced along with the increase of material strength, the applied stress or stress amplitude. The stress amplitude influenced the most, and the material yield strength influenced the least. Low bolt strength and a low stress amplitude level could extend high-strength bolt corrosion fatigue life.