Fiber orientation assessment on surface and beneath surface of carbon fiber reinforced composites using active infrared thermography

Henrique C. Fernandes; Xavier P. V. Maldague

doi:10.1117/12.2053480

21 May 2014 Fiber orientation assessment on surface and beneath surface of carbon fiber reinforced composites using active infrared thermography

Henrique C. Fernandes, Xavier P. V. Maldague

Author Affiliations +

Proceedings Volume 9105, Thermosense: Thermal Infrared Applications XXXVI; 91050D (2014) https://doi.org/10.1117/12.2053480
Event: SPIE Sensing Technology + Applications, 2014, Baltimore, MD, United States

Abstract

Fiber orientation in composite materials is an important feature since the material’s strength and stiffness are related to the fiber orientation. In this paper, non-destructive infrared thermography is used to assess fiber orientation of carbon/PEEK (Polyether ether ketone) laminates on the surface and subsurface of the material. Specifically, a noncontact laser lock-in thermography (LLT) technique is used for fiber orientation measurement in composite materials. LLT utilizes a modulated continuous wave (CW) laser as a heat source for lock-in thermography instead of commonly used flash and halogen lamps. Experimental results show that fiber orientation on the first (surface) and second layers of the laminate can be successfully measured using this technique.

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Henrique C. Fernandes and Xavier P. V. Maldague "Fiber orientation assessment on surface and beneath surface of carbon fiber reinforced composites using active infrared thermography", Proc. SPIE 9105, Thermosense: Thermal Infrared Applications XXXVI, 91050D (21 May 2014); https://doi.org/10.1117/12.2053480

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