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Fracture of fiber-reinforced materials

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Abstract

The fracture behaviour of fiber-reinforced materials is studied in this paper. Using a simple shear lag model, which includes friction at the debonded interface and the Poisson contraction of the fiber, the fiber-matrix debonding problem is solved. This gives the relationship between debonding load and debonded length. Interfacial friction is shown to have a significant effect on the debonding load. The fracture toughness of fiber-reinforced materials due to fiber debonding, frictional dissipation at fibre-matrix interface following debonding and other micro-fracture mechanisms is discussed with reference to strong and weak fibres. Finally, the strength and toughness of short fibre-reinforced materials are given.

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Authors and Affiliations

  1. Dept. of Mechanical Engineering, University of Sydney, 2006, Sydney, NSW, Australia

    Yu-Chen Gao, Yiu-Wing Mai & Brian Cotterell

Authors
  1. Yu-Chen Gao
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  2. Yiu-Wing Mai
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  3. Brian Cotterell
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On leave from Harbin Shipbuilding Engineering Institute, Harbin, China

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Gao, YC., Mai, YW. & Cotterell, B. Fracture of fiber-reinforced materials. Z. angew. Math. Phys. 39, 550–572 (1988). https://doi.org/10.1007/BF00948962

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  • DOI: https://doi.org/10.1007/BF00948962

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