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Prediction on fatigue properties of the plain weave composite under broadband random loading
Author(s) -
Sun Yi,
Zhang Yuli,
Yang Chaozhi,
Liu Yizhi,
Chen Xiaojie,
Yao Liaojun,
Gao Weicheng
Publication year - 2021
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/ffe.13445
Subject(s) - randomness , residual strength , composite number , materials science , probability density function , structural engineering , composite material , vibration fatigue , random vibration , residual , stress (linguistics) , residual stress , vibration , engineering , mathematics , fatigue testing , statistics , acoustics , algorithm , physics , linguistics , philosophy
Abstract In this paper, the fatigue properties of the plain weave composite subjected to broadband random loading are investigated. A prediction method is proposed to calculate the failure probability of the composite under random loading by combining the probability density function of the residual strength and the probability density function of the stress peaks. The stress randomness and the strength dispersity are both taken into account in the analysis of the residual strength and the failure probability curves. The fatigue life data of the plain weave composite under broadband random responses are obtained from the random vibration tests. The predicted results are in good agreement with the experiments.