Infield composites repair techniques for combat aircraft: Research and development perspective

D. Tzetzis, Paul J. Hogg

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Combat aircraft that are damaged and reside on the ground are completely ineffectual to air component commanders. Aircraft battle damage repair (ABDR) aims to rapidly restore these damaged aircraft to some level of combat capability. To be effective, the repairs must allow the aircraft to return to combat in time to affect the outcome of the battle. The Composite Group at Department of Materials, Queen Mary College, University of London, has worked on various aspects of the rapid repair concept for composite materials. In the present paper in particular, the vacuum infusion method is highlighted as an alternative reliable bonded infield repair approach for composite monolithic skins. The study identifies certain technical challenges that the repair technique must address to be viable. Results are presented from a novel toughening method developed by incorporating polyester and carbon veils at the infused bondline, while single scarf coupons as well as full scale testing data demonstrate the effectiveness of the vacuum infusion repair technology in accordance with the ABDR specifications. © 2007 W. S. Maney & Son Ltd.
    Original languageEnglish
    Pages (from-to)2-9
    Number of pages7
    JournalMaterials Technology
    Volume22
    Issue number1
    Publication statusPublished - Mar 2007

    Keywords

    • Bondline toughening
    • Compression testing
    • Crack bridging
    • Shadow moirè technique
    • Stress distribution
    • Vacuum infusion repairs

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