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The investigation of fibre reinforcement effects in thermoplastic materials: interfacial bond strength and fibre end parameter

Wang, C.C. and Thomason, James and Jones, F.R. (2008) The investigation of fibre reinforcement effects in thermoplastic materials: interfacial bond strength and fibre end parameter. In: 13th European Conference on Composite Materials (EECM 13), 2008-06-02 - 2008-06-05.

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Abstract

Glass fibres used in the manufacture of fibre reinforced thermoplastic composites (FRTP) are normally sized with a film former which includes a silane coupling agent to improve the interfacial bond strength between glass fibre and matrix . However, during composite failure even an optimized interface cannot stop the initia tion of cracks at the fibre ends, which can lead to large transverse cracks in the matrix or failure by fibre pull-out. In order to help better understand the failure mechanisms of FRTP, thermoplastic microbond tests and photoelasticity experiments have been used to study the interface in model single fibre composites.