Subsurface Discontinuity Detection in Composites by Infrared Testing

The aerospace and automotive industries are increasingly incorporating the use of carbon fiber materials in structural components. During the manufacture and use of these carbon fiber materials, defects are induced in their structure, so it is important to detect them in time before they end in a catastrophe. One of the most damaging structural defects in carbon fiber laminates that often ends in a catastrophe are delaminations. It is necessary to develop a productive and non-invasive methodology to detect this defect. Analysis of heating and cooling on the surface with an infrared camera may be an option.

References
  • ASTM, ASTM E2582-07: Practice for Infrared Flash Thermography of Composite Panels and Repair Patches Used in Aerospace Applications, ASTM International, West Conshohocken, Pennsylvania, 2007.
  • ASTM, ASTM E2533 − 16a Standard Guide for Nondestructive Testing of Polymer Matrix Composites Used in Aerospace Applications ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 2017.
  • ASNT, Nondestructive Testing Handbook, Third Edition: Volume 3, Infrared and Thermal Testing, American Society for Nondestructive Testing, Inc., Columbus, Ohio, 2001, pp. 318–338.
  • Spring, R, Roy H.and Matt Schwoegler, "Infrared Thermography: A Versatile Nondestructive Testing Technique," from Materials Evaluation, Vol. 69, No. 8, pp: 934–942, 2011.
  • Shepard, S. M., “Thermography of Composites,” Materials Evaluations, Vol. 65, No. 7, 2007, pp. 690–696.
  • Shepard S., and James Lhota, "Thermography: More than a Pretty Picture" from Materials Evaluation, Vol. 72, No. 1, pp: 32–41, 2014.
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