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Growth of Damage Within Composites Determined by Image Enhanced Backlighting and Embedded Optical Fibers

  • W. Tsaw
  • M. LeBlanc
  • R. M. Measures
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

The aerospace industry is increasing its use of composite materials because of their: high strength and stiffness to weight ratio, low thermal expansion and resistance to fatigue and corrosion. Furthermore, their elastic and thermal properties can be tailored to suit anticipated service loads. Unfortunately, the very nature of these fibre reinforced polymers makes them prone to several types of damage. Among these damage modes, interlamina disbonding, or delamination, has been found to be the most serious. This form of damage can be induced by relatively low energy impacts such as a carelessly dropped tool, runway stones, hail and once started the region of damage can grow with the load cycling incurred in normal operation.

Keywords

Matrix Crack Honeycomb Core CFRP Laminate Damage Sensitivity Light Bleeding 
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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References

  1. 1.
    R.M. Measures, Fiber Optic Sensors…. The Key to Smart Structures, Fibre Optics 89, SPIE vol. 1120, paper 1120–22, 1989.Google Scholar
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    R.M. Measures, N.D.W. Glossop, J. Lymer, M. LeBlanc, J. West, S. Dubois, W. Tsaw, and R. C. Tennyson, Structurally Integrated Fiber Optic Damage Assessment System for Composite Materials, Applied Optics, 28, 2626–2633, 1989.CrossRefGoogle Scholar
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    N.D. Glossop, J. D. Lymer, R. M. Measures, and R.C. Tennyson, Image Enhanced Backlighting a New Method of Non-Destructive Evaluation in Translucent Composite Materials, Accepted for the Journal of NDE, 989.Google Scholar
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    N.D. Glossop, S. Dubois, W. Tsaw, M. LeBlanc, J. Lymer, R. M. Measures, and R.C. Tennyson, Optical Fibre Damage Detection for an Aircraft Composite Leading Edge, Accepted for Composites Journal, 1989.Google Scholar
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    W. J. Cantwell and J. Morton, Detection of Impact Damage in CFRP Laminates, Composite Structures, 3, 241–257, 1985.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • W. Tsaw
    • 1
  • M. LeBlanc
    • 1
  • R. M. Measures
    • 1
  1. 1.University of Toronto Institute for Aerospace StudiesDownsviewCanada

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