Moscow University Physics Bulletin

, Volume 73, Issue 6, pp 622–626 | Cite as

Laser Optoacoustic Measurement of the Volume Concentration of Epoxy Resin in Carbon Fiber Reinforced Plastic Composites

  • A. A. KarabutovEmail author
  • Yu. G. SokolovskayaEmail author


A laser optoacoustic method for determining the volume concentration of a polymer binding and carbon filler in carbon fiber reinforced plastic (CFRP) composites has been proposed and realized. Composite samples fabricated by the vacuum infusion method were studied. The volume concentrations of epoxy resin were measured for a set of CFRP samples. We have shown that there are regions with an excess and a deficiency of the epoxy resin. The method could be used for testing of both reference samples and real composite structures.


laser ultrasonic method optoacoustic effect phase velocity longitudinal acoustic waves CFRP composites 



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© Allerton Press, Inc. 2018

Authors and Affiliations

  1. 1.International Laser Center, Moscow State UniversityMoscowRussia
  2. 2.Department of Physics, Moscow State UniversityMoscowRussia

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