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Vibration fatigue life prediction method for needled C/SiC composite based on frequency response curve with low signal strength by Shao-Dong Wu; De-Guang Shang; Lin-Xuan Zuo; Lin-Feng Qu; Geng Hou; Guo-Cheng Hao; Feng-Tian Shi is a Engineering article available to read on EtoBox.

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The experimental results show that needled C/SiC composite exhibits nonlinear stiffness characteristics in the process of vibration. In order to consider the effect of the number of fiber layers on the fatigue properties, the S -N curve related to the number of 0 • layer fibers for needled C/SiC composite is proposed in this investigation. According to the relationship between the frequency response curve and the signal strength, an amplitude probability density function under narrow band random vibrations was proposed for predicting the fatigue life for the notched plate specimen. The results showed that the proposed method has a good prediction effect.

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Author

Shao-Dong Wu; De-Guang Shang; Lin-Xuan Zuo; Lin-Feng Qu; Geng Hou; Guo-Cheng Hao; Feng-Tian Shi

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)