Fatigue reliability analysis of structural system based on finite volume method

被引：0
|
作者：
Yu Y. [1 ]
Li J. [2 ]
Chen W. [3 ]
Lu S. [3 ]
机构：
[1] College of Water Conservancy and Architecture, Northeast Agricultural University, Harbin
[2] College of Geographical Information and Tourism, Chuzhou University, Chuzhou
[3] College of Astronautics and Architectural Engineering, Harbin Engineering University, Harbin
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2017年 / 38卷 / 09期
关键词：
Branch-and-bound method; Cumulative damage; Failure mechanism; Failure mode; Fatigue reliability; Finite volume method; Solid structure; Structural system;
D O I：
10.11990/jheu.201605051
中图分类号：
学科分类号：
摘要：
In this study, the finite volume method was adopted to analyze the fatigue reliability of a solid structure system and to optimize its computational efficiency. The fatigue reliability of structural elements was analyzed on the basis of the cumulative damage model. The analytical model of a solid structure system was established, and the fatigue failure mechanism of a solid structure system was analyzed. In addition, the recognition of fatigue failure was explored, and the main failure modes of the structural system were investigated through the improved branch-and-bound method. The fatigue reliability of the structural system was calculated through the simplified fatigue reliability analysis method. The analysis of calculation examples revealed that the fatigue reliability of the structure system is within the estimation range of the simple bound-value method. In addition, reliability continuously decreases with increasing fatigue load cycles. The trend of the calculation results was correct and valid, thus validating the method. The proposed method provides a theoretical basis for the fatigue reliability analysis of structural systems. © 2017, Editorial Department of Journal of HEU. All right reserved.
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页码：1413 / 1419
页数：6
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