書誌事項
- タイトル別名
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- Applicability of Fracture Toughness Concept to Fracture Behavior of Carbon/Carbon Composites.
- タンソ センイ キョウカ タンソ フクゴウ ザイリョウ ニ オケル ハカイ ジ
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抄録
Carbon/Carbon (C/C) composites have attractive mechanical properties such as superior specific strength and high elastic modulus at high temperature exceeding 2000°C in an inert atmosphere. However, mainly due to lack of knowledge of design criteria, C/C composites have not been used in primary heat resistant structures. For example, almost no unified explanation has been given about fracture behavior of C/C composites. The objective of this paper is to examine whether the linear elastic fracture mechanics (LEFM) is able to be applied to a C/C composite. The LEFM is tried to apply to fracture behavior in tensile tests of the double-edge-notched and compact tension specimens and in the four-point bending test of the single-edge-notched specimens. It was found that the results of three kinds of fracture tests can be consistently and rationally explained by the LEFM concept with the aid of R-curve behavior if the pre-crack length is long enough to be able to neglect the notch tip radius. From fractographic observation it was found that R-curve behavior of the C/C composite was mainly attributed to the fiber-bridging effect near the notch tip.
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 64 (620), 897-903, 1998
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
- 1390282679423001216
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- NII論文ID
- 110002374515
- 10003522539
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- NII書誌ID
- AN0018742X
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- ISSN
- 18848338
- 03875008
- http://id.crossref.org/issn/00256501
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- NDL書誌ID
- 4468716
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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