書誌事項
- タイトル別名
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- Mode I Interlaminar Fracture under Static and Fatigue Loadings of Alumina Fiber/Epoxy Laminates in Liquid Nitrogen.
- エキタイ チッソ チュウ ニ オケル アルミナ センイ エポキシ セキソウバン ノ モード 1 セイテキ ヒロウソウ カン ハカイ
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説明
Laminate structures of alumina fiber (ALF)/epoxy composites have been applied to the structural components of superconducting magnets because of their low thermal conductivity and higher specific strength and modulus. Since these structures are used as the load support system for superconducting magnets at cryogenic temperature, the evaluation of interlaminar strength both under static and fatigue loadings is important. In the present study, mode I interlaminar fracture toughness and delamination fatigue crack growth behavior were investigated with unidirectional ALF/epoxy laminates in liquid nitrogen (77 K). Tests were carried out using double cantilever beam specimens. Both the fracture toughness values and fatigue thresholds at 77 K were higher than those in laboratory air (RT). The analysis of the stress-ratio dependency showed that the fatigue mechanism in liquid nitrogen was only controlled by the maximum stress. The difference of the fracture mechanism owing to the test temperature was discussed on the bases of fractographic observation.
収録刊行物
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- 日本機械学会論文集A編
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日本機械学会論文集A編 65 (640), 2411-2417, 1999
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282679425516288
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- NII論文ID
- 110002375181
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
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- NDL書誌ID
- 4945308
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可