Tokyo Metropolitan University
Institute of Space and Astronautical Science
Tokyo Metropolitan University
出版者
宇宙科学研究所
出版者（英）
The Institute of Space and Astronautical Science (ISAS)
雑誌名
宇宙輸送シンポジウム 平成13年度
雑誌名(英)
Proceedings of Space Transportation Symposium FY2001
ページ
9 - 12
発行年
2002-04
抄録（英）
Fracture toughness tests for cross-ply laminated carbon-carbon composites (0/90 C/Cs) were performed. These experiments aimed not only to evaluate the formation of shear bands that might be extended from the notch tips by different extension lengths but also to elucidate the interaction between 0 and 90 layers in 0/90 C/Cs. Thus, shear bands were not observed in the 0/90 C/Cs even in microscopic level, but clearly observed zigzag cracking in 0 layers, splitting in 90. This zigzag crack was yielded due to the interaction between 0 and 90 layers in these materials. The zigzag crack with partial delaminations releases a large amount of energy, which gives rise to high fracture toughness in cross-ply C/C composites.
Toughening mechanism of 0/90 carbon-carbon composites
