Optimal Inspection Period for Structures Subjected to Fatigue
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Published:2022-06-13
Issue:
Volume:
Page:
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ISSN:0219-8762
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Container-title:International Journal of Computational Methods
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language:en
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Short-container-title:Int. J. Comput. Methods
Author:
Li Feng1,
Xu Qianhui1,
Zhou Liming1ORCID,
Meng Guangwei1
Affiliation:
1. College of Mechanical and Aerospace Engineering, Jilin University, Changchun 130022, P. R. China
Abstract
In this paper, an optimal inspection model for three-dimensional structures under random loading is presented from the view of reliability. Neuber method and finite element analysis as well as experiential stress intensity factor (SIF) were applied in the analysis of fatigue life. Based on the series system theory, the reliability function for the structural fatigue life is given. Treat the crack initiation life (CIL) as service life and the crack propagation life (CPL) as inspection period, the optimal inspection period was obtained under a given reliability. The proposed method is proved to be feasible by a numerical example, which involves a bracket under random loading.
Funder
Education Department of Jilin Province
Publisher
World Scientific Pub Co Pte Ltd
Subject
Computational Mathematics,Computer Science (miscellaneous)