High-velocity impact damage behavior of plain-woven SiC/SiC composites after thermal loading

Shigeki Yashiro, Keiji Ogi, Masashi Oshita

研究成果: Contribution to journalArticle査読

25 被引用数 (Scopus)

抄録

This study investigates characteristics of foreign-object damage in plain-woven SiC/SiC composites after thermal loading. High-speed impact tests were conducted on virgin specimens, thermally exposed specimens, and thermally shocked specimens, in which the maximum temperature during thermal loading was 600 °C or 1000 °C. An oxide layer was generated on the specimen surface by thermal loading at 1000 °C. Damaged areas on the front and back surfaces induced by particle impact were independent of thermal loading. However, in specimens thermally loaded at 1000 °C, brittle failure, i.e. cone cracking without fiber pull-out, occurred due to oxidation of the fiber/matrix interfaces, and the ballistic limit velocity significantly decreased. Finally, the ballistic limit is predicted using static strength properties, and the effect of thermal loading on impact resistance is discussed.
本文言語英語
ページ(範囲)1353-1362
ページ数10
ジャーナルComposites Part B: Engineering
43
3
出版ステータス出版済み - 4 2012

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