The Research on Stress Intensity Factor of Steel Bridge Members Based on Finite Element Method

被引：0

作者：

Li, Ying ^{[1
]}

Qu, Jia ^{[2
]}

机构：

[1] ChangChun Inst Technol, Sch Civil Engn, Changchun 130012, Peoples R China

[2] Commun & Plan Designing Inst JiLin Prov, Changchun 130021, Peoples R China

来源：

PROCEEDINGS OF THE 5TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING AND TRANSPORTATION 2015 | 2016年 / 30卷

关键词：

fracture mechanics; steel bridge; stress intensity factor; finite element;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The calculation accuracy of stess intensity factor K has direct effect to the results when elastic fracture mechanics is adopted to fatigue life estimation. In order to decrease calculation errors, the steel I-beam with side crack and the steel box beam with central crack have been studied which are commonly used in bridge engineering, and the stress intensity factors of crack ends are calculated based on finite element method, and the results are compared with simplified formula calculating values. The conclusions have been achieved that comparative errors are obvious using empirical formulas when boundary conditions are different, and the fitting formula of shape functions are obtained based on the finite element data.

引用

页码：612 / 616

页数：5

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