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Monitoring of Failure Mechanisms in FibeInternational Journal of Modern Physicsr Reinforcecd Composites during Cryogenic Colling by Acoustic Emission

Title
Monitoring of Failure Mechanisms in FibeInternational Journal of Modern Physicsr Reinforcecd Composites during Cryogenic Colling by Acoustic Emission
Author
최낙삼
Issue Date
2003-03
Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
Citation
International Journal of Modern Physics B v. 17, no. 08
Abstract
Microfractures in composite laminates during cryogenic cooling were monitored employing thermo-acoustic emission(AE). During the initial stage of cryogenic cooling, very strong AE signals with low and high frequency bands were dominantly detected showing a development of large cracks accompanying fiber breakages. After that, weak emissions with low frequency bands became prevalent indicating the propagation of microfractures in the matrix and/or fiber-matrix interface. It was concluded that the breakage of bridged-fibers hindering the macroscopic cracking in the initial stage might be the representative cryogenic damage of composite laminates.
URI
https://www.worldscientific.com/doi/epdf/10.1142/S0217979203019630https://repository.hanyang.ac.kr/handle/20.500.11754/155253
DOI
10.1142/S0217979203019630
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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