Investigation of damage behavior and gas permeability of CFRP laminates under cyclic loadings for cryogenic propellant tank application

研究低温推进剂储罐循环载荷下 CFRP 层压板的损伤行为和透气性

• 批准号: 21760648
• 负责人: YOKOZEKI Tomohiro
• 金额: $ 2.41万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760648/
• 关键词: 構造・材料; 極低温燃料タンク; 複合材料; 構造・機能材料; 宇宙輸送機; 複合材料・物性; 水素

Damage behavior and fuel leakage through the accumulated damages in carbon fiber-reinforced plastics (CFRP) under cyclic loadings were experimentally investigated to evaluate the applicability of CFRP to the cryogenic fuel tanks of space launch vehicles. Formation and accumulation behavior of microcracks and its relation to the fuel leakage were clarified. It was shown that CFRP laminates exhibit no leakage up to the specific load level, even when some damages are induced.

通过实验研究循环载荷下碳纤维增强塑料（CFRP）的累积损伤导致的损伤行为和燃料泄漏，以评估CFRP在航天运载火箭低温燃料箱中的适用性。阐明了微裂纹的形成和积累行为及其与燃油泄漏的关系。结果表明，即使引起一些损坏，CFRP 层压板在达到特定负载水平时也不会出现泄漏。

项目成果

Evaluation of gas permeability of CFRP laminates under cyclic loadings

循环载荷下 CFRP 层压板的透气性评估

• 发表时间: 2010
• 期刊: Transactions of JSASS, Aerospace Technology Japan Vol.8,No.ists27,PcNo.ists26,Pc.5-9
• 作者: T.Yokozeki;A.Kuroda;A.Yoshimura;T.Ogasawara;T.Aoki
• 通讯作者: T.Aoki

Permeation-after-impact properties of CFRP laminates for use on propellant tanks

用于推进剂储罐的 CFRP 层压板的冲击后渗透性能

• 发表时间: 2009
• 期刊: Transactions of JSASS, Space Technology Japan Vol.7,No.ists26,Pc19-23
• 作者: T.Yokozeki;A.Kuroda;A.Yoshimura;T.Ogasawara;T.Aoki
• 通讯作者: T.Aoki