In the scheme of a EURAM-Programme, fibre/matrix bonding in CFRP was investigated as a function of the level of fibre surface treatment and cure temperature. The fibre/matrix bond strength was determined with the aid of a new technique based on transverse cracking in 0/904/0 laminates. A model taken from the literature, which describes transverse cracking as influenced by defects, matrix ductility and constraining effect, is applied to explain the effect of surface treatment in relation to the defect distribution and the bond strength. Further, it is shown that the surface treatment most effectively increases the bond strength if a high cure temperature (190°C) is chosen.
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PetersP. W. M.1989.“The Influence of Fibre, Matrix and Interface on Crossply Cracking in Carbon Fibre-Reinforced Plastics,” ASTM STP 1012, pp. 84–99
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PetersP. W. M.1988.“The Effect of Constraint on Cross-Ply Cracking in FRP,” in Advancing with Composites, International Conference on Comp. Mat., Milan, May 10–13, 1988, pp. 673–689
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PetersP. W. M.1989.“A New Method to Determine the Fibre/Matrix Bond Strength,”Conference: Interfacial Phenomena in Composite Materials, September 5–7, 1989, Sheffield, pp. 59–62
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PetersP. W. M.ChouT. W.. 1987.“On Cross-Ply Cracking in Glass and Carbon Fibre-Reinforced Epoxy Laminates,”Composites, 18(1):40–46
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PetersP. W. M.MeusemannH.. 1987.“On Cross-Ply Cracking in Graphite, Glass and Aramid Fibre-Reinforced Epoxy Laminates,”Proc. ICCM VI/ECCM II, London, UK, July 20–24, 1987, pp. 3,508–3,525
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JonesF. R.MulheronM.. 1983.“The Effect of Moisture on the Expansion Behaviour and Thermal Strains in GRP.”Composites, 14(3):281–287
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PetersP. W. M.AlbertsenH.Korger-RothG.IvensJ.BaderM.. “The Influence of Fibre Surface Treatment on Transverse Fracture in CFRP,” to be published in Composites.
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PetersP. W. M.AlbertsenH.. 1991.“The Fibre/Matrix Interphase in CFRP with a Phase Separating Matrix System,”Proc: Interfacial Phenomena in Comp. Mat., Leuven, pp. 101–107
24.
PetersP. W. M.AlbertsenH.. 1993.“The Influence of Fibre Surface Treatment on the Formation of an Interphase in CFRP,”J. Mat. Sc., 28:1059–1066
25.
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