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Thermal Method for Depth of Damage Determination in Insulating Materials

  • P. A. Howell
  • K. Elliott Cramer
  • W. P. Winfree

Abstract

Impact damage often may produce little visible surface damage, yet extensive subsurface delaminations, greatly reducing the load carrying capacity of the composite part [1]. For large composite structures typical of aerospace applications, thermal NDE techniques have been shown to provide quantitative information regarding the area and depth of hidden damage in composite samples [2] [3]. For a quantitative assessment of damage, where a noncontacting method capable of imaging large areas at a time is required, thermal techniques have some advantages.

Keywords

Surface Damage Impact Damage Heat Flux Boundary Condition Thermal Time Constant Quartz Lamp 
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

© Plenum Press, New York 1993

Authors and Affiliations

  • P. A. Howell
    • 1
  • K. Elliott Cramer
    • 2
  • W. P. Winfree
    • 2
  1. 1.Analytical Services & Material, Inc.NASA, Langley Research CenterHamptonUSA
  2. 2.Langley Research CenterNASAHamptonUSA

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