２Ｄ　Ｃ／Ｃ複合材料製ダブテール接合の強度および破壊挙動

• 向後 保雄

  東京理科大学基礎工学部

• 八田 博志

  文部省宇宙科学研究所

• 豊田 雅二

  拓殖大学大学院

• 後藤 健

  文部省宇宙科学研究所

• 杉林 俊雄

  拓殖大学工学部機械システム工学科

書誌事項

タイトル別名

• Strength and Fracture Behavior of Dovetail Joint Structure Made of 2D Carbon-Carbon Composite.
• 2D C C フクゴウ ザイリョウセイ ダブテール セツゴウ ノ キョウド オ

抄録

In a development study of the air-turbo-ramjet (ATR) engine for a space plane, carbon-carbon (C/C) composites are attempted to be applied to the tip-turbine structure mainly taking advantage of high specific strength at elevated temperature. This disk has rather complicated shape and thus the joining structure is expected to be used. For the joint between fan blades and a fan disk, the dovetail joint is appeared to be useful but it is indispensable to maintain sufficient durability against extremely high centrifugal force to design optimally material property as well as the joint geometry. Tensile tests were carried out on simplified dovetail joint models made of three type of two dimensionally reinforced C/C composites. The effect of stacking pattern and various geometrical parameters was examined so as to fined an optimal structure. The result of the tensile test suggests that fracture of the dovetail joint be controlled by the average stress criterion, which implies stress concentration near the shoulder is almost relaxed during failure process of the C/C composites. It is also shown that AE signals are extremely useful to identify durability limit of the dovetail joint especially when the fracture mode is shear.

収録刊行物

• 日本複合材料学会誌

  日本複合材料学会誌 24 (6), 222-229, 1998

  一般社団法人 日本複合材料学会

詳細情報

• CRID: 1390001204623891712
• NII論文ID: 10002465743
• NII書誌ID: AN00196748
• DOI: 10.6089/jscm.24.222
• COI: 1:CAS:528:DyaK1MXlvF2mtw%3D%3D
• ISSN: 18848559
• ISSN: 03852563
• ISSN: http://id.crossref.org/issn/03852563
• NDL書誌ID: 4600771
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4600771
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可