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

2010 Fiscal Year Final Research Report

• Project/Area Number: 21760648
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Aerospace engineering
• Research Institution: The University of Tokyo
• Principal Investigator: YOKOZEKI Tomohiro The University of Tokyo, 大学院・工学系研究科, 准教授 (50399549)
• Project Period (FY): 2009 – 2010
• Keywords: 構造・材料 / 極低温燃料タンク / 複合材料

Research Abstract

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.

Research Products

• [Journal Article] Evaluation of gas permeability of CFRP laminates under cyclic loadings (2010)
  • Author(s): T.Yokozeki, A.Kuroda, A.Yoshimura, T.Ogasawara, T.Aoki
  • Journal Title: Transactions of JSASS, Aerospace Technology Japan Vol.8,No.ists27,PcNo.ists26,Pc.5-9
• [Journal Article] Permeation-after-impact properties of CFRP laminates for use on propellant tanks (2009)
  • Author(s): T.Yokozeki, A.Kuroda, A.Yoshimura, T.Ogasawara, T.Aoki
  • Journal Title: Transactions of JSASS, Space Technology Japan Vol.7,No.ists26,Pc19-23
• [Presentation] Evaluation of gas permeability of CFRP laminates under cyclic loadings (2009)
  • Author(s): T.Yokozeki, A.Kuroda, A.Yoshimura, T.Ogasawara, T.Aoki
  • Organizer: 27th International Symposium on Space Technology and Science
  • Place of Presentation: Tsukuba, Japan.
  • Year and Date: 2009-07-07