Methods for rapid repairs of damaged composite structures were investigated. The damage was represented by a circular hole in a composite laminated plate. Precured composite patches were bonded with a quick-curing commercial adhesive near (rather than over) the hole. Tensile tests were conducted on specimens repaired with various patch geometries. The test results showed that, among the methods investigated, the best repair method restored over 90% of the original strength to the undamaged panel. The interfacial stresses in the adhesive zone for different patches were calculated in order to understand the efficiencies of the designs of these patch repairs. It was found that the composite patch that yielded the best strength had the lowest interfacial peel stress between the patch and the host composite structure.


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    Title :

    Quick repairs of composite structures


    Contributors:
    Roh, Hee Seok (author) / Sun, C.T. (author) / Pipes, R.B. (author)


    Publication date :

    2008


    Size :

    9 Seiten, 6 Bilder, 3 Tabellen, 10 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English