Thermal-wave nondestructive evaluation of a carbon-epoxy composite using mirage effect
- 1 January 1986
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 59 (1) , 234-240
- https://doi.org/10.1063/1.336870
Abstract
We report new results obtained for thermal-wave nondestructive evaluation applied to composite material using the mirage effect. We have thermally characterized a composite of woven carbon fibers and epoxy consisting of both opaque and transparent parts. We have measured the thermal diffusivity in the different regions of the composite. An anisotropy was found in the thermal diffusivity of the fibers and an effective diffusivity of the epoxy was calculated. From these experimental values we have been able to determine the thickness of the epoxy which coats, in many parts, the fibers. Subsurface cuts made perpendicular to the fibers were easily detected.This publication has 14 references indexed in Scilit:
- Nondestructive control of weldings using the mirage detectionJournal of Applied Physics, 1985
- Photoacoustic spectroscopy of thick powdered or porous samples at low frequencyJournal of Applied Physics, 1984
- Thermal effects in photothermal spectroscopy and photothermal imagingJournal of Applied Physics, 1983
- Mesures de diffusivités thermiques par la méthode photoacoustique et par l'effet mirageRevue de Physique Appliquée, 1982
- Thermal wave microscopy with photoacousticsJournal of Applied Physics, 1980
- Subsurface flaw detection in metals by photoacoustic microscopyaJournal of Applied Physics, 1980
- Thermo-optical spectroscopy: Detection by the ’’mirage effect’’Applied Physics Letters, 1980
- Optoacoustic phase angle measurement for probing a metalApplied Physics Letters, 1979
- Photoacoustic microscopeElectronics Letters, 1979
- 11 GHz and 12 GHz multiwatt internal matching for power GaAs f.e.t.sElectronics Letters, 1979