Damage mechanism characterization in composite damage tolerance investigations

Abstract The investigation of damage tolerance of composite materials comprises a spectrum of topics. A review of research in the area of damage tolerance critically exposes the need to identify basic damage mechanisms in order to develop more damage-tolerant materials and structures. The importance of characterizing damage mechanisms is emphasized and examples are given to illustrate the approaches which can be used. New results on the characterization of impact damage in carbon fibre reinforced epoxy resin composite laminates are presented. The discussion leads to the identification of a number of issues that require further research for the development of a mechanism-oriented rational damage-tolerant design approach.

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