Thermal wave imaging of defects in fiber-reinforced composites

Lawrence D. Favro; Xiaoyan Han; Robert L. Thomas

doi:10.1117/12.305043

31 March 1998 Thermal wave imaging of defects in fiber-reinforced composites

Lawrence D. Favro, Xiaoyan Han, Robert L. Thomas

Proceedings Volume 3397, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware II; (1998) https://doi.org/10.1117/12.305043
Event: Non-Destructive Evaluation Techniques for Aging Infrastructure and Manufacturing, 1998, San Antonio, TX, United States

Abstract

The principles of thermal wave imaging for NDE are described. The technique utilizes high-power photographic flash lamps for pulse-heating of the surface of the composite. The cooling of the surface is monitored by means of an IR video camera. Disbonds, delaminations, and inclusions are seen in the resultant thermal wave images, with deeper features appearing systematically at later times. Examples of the application of thermal wave imaging to nondestructive evaluation of boron fiber composite reinforcement patches, and graphite-fiber aerospace composite materials are described.

Citation Download Citation

Lawrence D. Favro, Xiaoyan Han, and Robert L. Thomas "Thermal wave imaging of defects in fiber-reinforced composites", Proc. SPIE 3397, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware II, (31 March 1998); https://doi.org/10.1117/12.305043

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