Defect Detection in CFRP by Infrared Thermography with CO2 Laser Excitation Compared to Conventional Lock-in Infrared Thermography - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Composite Part B Année : 2015

Defect Detection in CFRP by Infrared Thermography with CO2 Laser Excitation Compared to Conventional Lock-in Infrared Thermography

Franck Brachelet
Florin Breaban
  • Fonction : Auteur
Didier Defer

Résumé

This paper presents a NDT by a CO2 Laser infrared thermography applied to defect detection in CFRP. The CO2 Laser is an infrared laser with the wavelength of 10.6 μm. This excitation has a controllable heating beam by a geometric relation D = 0.01575·d, which allows to heat the samples at a specific position (placed at the distance “d”) and area (of a diameter “D”). The PPT interpretation principle was used to reduce the non-uniformity’s effect of the excitation causing inhomogeneous heat. The test with this excitation is much faster than the tests with conventional lock-in thermography method.
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Dates et versions

hal-01074655 , version 1 (15-10-2014)

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Citer

Sam Ang Keo, Franck Brachelet, Florin Breaban, Didier Defer. Defect Detection in CFRP by Infrared Thermography with CO2 Laser Excitation Compared to Conventional Lock-in Infrared Thermography. Composite Part B, 2015, 69, pp.1-5. ⟨10.1016/j.compositesb.2014.09.018⟩. ⟨hal-01074655⟩
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