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Carbon Fibre Composites: Deformation Micromechanics Analysed using Raman Spectroscopy

  • Robert J Young
Part of the CISM International Centre for Mechanical Sciences book series (CISM, volume 563)

Abstract

In the quest to understand reinforcement by high performance fibres, such as carbon fibres, the development of the subject of composite micromechanics is traced from its earliest roots. It is shown first how, employing concepts introduced by Kelly, it is possible through the use of shear-lag theory to predict the distribution of stress and strain in a single discontinuous fibre in a low-modulus matrix. For a number of years the shear-lag approach could only be used theoretically as there were no techniques available to monitor the stresses within a fibre in a resin. It is then shown that the advent of Raman spectroscopy and the discovery of stress-induced Raman bands shifts in reinforcing fibres, has enabled us to map out the stresses in individual fibres in a transparent resin matrix, and thereby both test and develop Kelly’s pioneering analytical approach.

Keywords

Carbon Fibre Interfacial Shear Stress Shear Yield Stress Carbon Fibre Composite Matrix Strain 
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

© CISM, Udine 2016

Authors and Affiliations

  • Robert J Young
    • 1
  1. 1.School of MaterialsUniversity of ManchesterManchesterUK

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