2012年2月
Interfacial fatigue crack propagation in microscopic model composite using bifiber shear specimens
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
- ,
- ,
- ,
- 巻
- 43
- 号
- 2
- 開始ページ
- 239
- 終了ページ
- 246
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.compositesa.2011.09.004
- 出版者・発行元
- ELSEVIER SCI LTD
Interfacial fatigue crack growth behavior in GF/epoxy model composites was investigated using bifiber shear (BFS) specimens in a scanning electron microscope. The specimen is composed of two E-glass filaments with diameters of 23 and 40 mu m, and bisphenol A type epoxy is impregnated between the filaments. The crack growth behavior under different stress ratios was investigated to clarify the fatigue crack growth mechanism. The change in the crack growth rate, da/dN, was not monotonic with crack length, suggesting a variation in the resistance to fatigue crack growth along a single filament. The resistance to fatigue crack growth of the interface is much smaller than that of composite laminates. The fatigue crack growth mechanism of the glass fiber/epoxy interface under different stress ratios is controlled by the maximum energy release rate, G(max), which is completely different from that of composite laminates. (C) 2011 Elsevier Ltd. All rights reserved.
- リンク情報
- ID情報
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- DOI : 10.1016/j.compositesa.2011.09.004
- ISSN : 1359-835X
- Web of Science ID : WOS:000301831000001