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Journal of Materials Science

, Volume 31, Issue 10, pp 2747–2755 | Cite as

Co-operative microbuckling of two fibres in a model composite

  • C. Mueller
  • A. Gorius
  • S. Nazarenko
  • A. Hiltner
  • E. Baer
Papers

Abstract

Cooperative fibre microbuckling, a compressive failure mechanism in unidirectional fibre-reinforced composites, was studied in a model system composed of two polyamide fibres in a transparent silicone matrix. The transparent matrix permitted direct observation of fibre microbuckling during compression. In all cases fibres buckled in a sinusoidal pattern with a critical wavelength characteristic of the fibre diameter and the modulus ratio of the fibre and matrix as observed previously with single fibre composites. At smaller separation distances, the two fibres microbuckled co-operatively in the common plane. At larger separation distances, the fibres microbuckled non-co-operatively in different planes. A stress overlap criterion based on the in-plane shear stress is proposed for co-operative fibre microbuckling.

Keywords

Separation Distance Modulus Ratio Compressive Failure Silicone Matrix Common Plane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1996

Authors and Affiliations

  • C. Mueller
    • 1
  • A. Gorius
    • 1
  • S. Nazarenko
    • 1
  • A. Hiltner
    • 1
  • E. Baer
    • 1
  1. 1.Department of Macromolecular Science and Center for Applied Polymer ResearchCase Western Reserve UniversityClevelandUSA

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