Fractography features of interlaminar crack growth in carbon fibre reinforced plastic under various mode loading

Gulyaev A.I., Yakovlev N.O., Oreshko E.I.
UDC
620.1:678.747.2
DOI
10.18577/2307-6046-2019-0-12-99-108
Article PDF (Russian) (938.71 KB)
How to cite
Gulyaev A.I., Yakovlev N.O., Oreshko E.I. Fractography features of interlaminar crack growth in carbon fibre reinforced plastic under various mode loading // Proceedings of VIAM. 2019. No. 12. DOI: 10.18577/2307-6046-2019-0-12-99-108. URL: https://test.viam.ru/en/journal/2019/12/11
Keywords
polymer composite, fracture toughness, mixed mode I+II, fracture mechanics, failure analysis, delamination, phase morphology, fractography.
Abstract

The interlaminar fracture toughness characteristics were experimentally determined under conditions of opening (mode I), forward shear (mode II), and combined loading (at various opening and shear ratios) of unidirectional epoxy polysulfone carbon fiber reinforced plastic. Based on the results of fractographic analysis, the fracture microrelief characteristic elements are identified and the change in the microstructure of the fracture surfaces with changing loading conditions is presented. A scheme is proposed for the formation of a shear microrelief for carbon fiber polymer composite with a matrix continuous phase morphology.

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