Abstract
A theoretical model including the effect of plasticity of the coating material on the single-fibre pull-out test has been developed. Both hardening and perfectly plastic coatings were modelled and the calculations have provided much information on the debond and maximum pull-out stresses. For both SiC fibre-glass and carbon fibre-epoxy systems, a stiff coating reduces substantially the partial debonding stress, but a soft coating increases it markedly. Although a higher coating yield stress increases the partial debonding stress slightly, the maximum pull-out stress is independent of the coating.
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On leave at the Department of Mechanical Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
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Lu, G.Y., Mai, Y.W. Effect of plastic coating on fibre-matrix interface debonding. J Mater Sci 30, 5872–5878 (1995). https://doi.org/10.1007/BF01151500
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DOI: https://doi.org/10.1007/BF01151500