Microscopic Investigation of Tensile Fatigue Damage of C/C and the Metal Impregnated C/C
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- Moriyama Masahiro
- Department of Aeronautics and Astronautics, Graduate School of Engineering, Kyushu University
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- Takao Yoshihiro
- Research Institute for Applied Mechanics, Kyushu University
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- Wang Wen-Xue
- Research Institute for Applied Mechanics, Kyushu University
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Abstract
Microscopic experimental investigation is performed to the fatigue fracture surface of C/C and metal impregnated C/C composites such as Cu-C/C and Si-C/C. These materials have an specific fatigue property that their average residual strength after 10^6 times cyclic loading is higher than the UTS of virgin specimens in every and that most of fatigue fracture occurs less than 10^4 cycles. Their SEM images together with recent macroscopic discussions by the present authors lead to the conclusion that fatigue failure is mainly affected by the interfacial crack at fiber-matrix interface and that in low cycle region strength degradation caused by fiber wear is dominative while in high cycle region the increased interfacial cracks at fiber-matrix interface prevent fibers in the 0 degree layer from fracturing, which makes the residual strength increased.
Journal
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- 九州大学応用力学研究所所報
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九州大学応用力学研究所所報 129 31-35, 2005-09
Research Institute for Applied Mechanics, Kyushu University
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Details 詳細情報について
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- CRID
- 1390009224764029952
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- NII Article ID
- 120005306675
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- NII Book ID
- AA11459359
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- DOI
- 10.15017/26793
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- HANDLE
- 2324/26793
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- NDL BIB ID
- 7835634
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- ISSN
- 13455664
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- Text Lang
- en
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- Data Source
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- Abstract License Flag
- Allowed