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- Title
Equivalent Spectral Method to Estimate the Fatigue Life of Composite Laminates Under Random Vibration Loadings.
- Authors
Gao, D. Y.; Yao, W. X.; Wen, W. D.; Huang, J.
- Abstract
The power spectral density (PSD) of an equivalent stress is proposed to analyze the fatigue life of composite laminates under random vibration loadings using the Tsai–Hill criterion. The vibration fatigue life can be estimated based on the rainflow amplitude probability density function p(S) of the equivalent stress, which is obtained from this PSD, combined with the S-N curve of the materials. The fatigue life analysis of a random vibration fatigue experiment of composite laminates was carried out, and the calculation results were in accordance with experimental data, which indicates that the fatigue life analysis model proposed gives a satisfactory prediction accuracy.
- Subjects
RANDOM vibration; FATIGUE life; LAMINATED materials; STRAINS &; stresses (Mechanics); PROBABILITY density function
- Publication
Mechanics of Composite Materials, 2021, Vol 57, Issue 1, p101
- ISSN
0191-5665
- Publication type
Article
- DOI
10.1007/s11029-021-09937-2