The type of defect or flaw produced when CFRP is damaged in service depends on the structural design and the conditions of damage such as the energy and momentum of an impact. These defects are stress raisers which may reduce the strength of the structure. There is a need, following non-destructive inspection, to be able to predict he residual performance so that decisions can be made on whether to monitor, repair or replace the component. Various types of damage produced by typical impact situations have been assessed non-destructively and the effect on strength determined in tension and compressions under both static and fatigue loading. For example areas of delamination, shown by sectioning to be multiple delamination between the plies, reduce the compressive strength by local buckling processes. Detailed examination of the fracture mechanisms at machined notches emphasizes the importance of effects in neighbouring plies influencing the stress concentrations in the load carrying 0 deg fibres. These studies have given a better insight into the factors which affect the toughness and strengths of CFRP with stress raisers, and have helped explain the residual strengths of damaged carbon fibre laminates.


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    Title :

    The effect of damage on the tensile and compressive performance of carbon fibre laminates


    Additional title:

    Der Einfluss von Fehlern auf die Zug- und Druckfestigkeit von Kohlenstoffaserschichtstoffen


    Contributors:
    Bishop, S.M. (author) / Dorey, G. (author)


    Publication date :

    1983


    Size :

    10 Seiten, 15 Bilder, 3 Tabellen, 8 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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