Thermography inspection for early detection of composite damage in structures during fatigue loading

Joseph N. Zalameda; Eric R. Burke; F. Raymond Parker; Jeff P. Seebo; Christopher W. Wright; James B. Bly

doi:10.1117/12.918126

18 May 2012 Thermography inspection for early detection of composite damage in structures during fatigue loading

Joseph N. Zalameda, Eric R. Burke, F. Raymond Parker, Jeff P. Seebo, Christopher W. Wright, James B. Bly

Proceedings Volume 8354, Thermosense: Thermal Infrared Applications XXXIV; 835403 (2012) https://doi.org/10.1117/12.918126
Event: SPIE Defense, Security, and Sensing, 2012, Baltimore, Maryland, United States

Abstract

Advanced composite structures are commonly tested under controlled loading. Understanding the initiation and progression of composite damage under load is critical for validating design concepts and structural analysis tools. Thermal nondestructive evaluation (NDE) is used to detect and characterize damage in composite structures during fatigue loading. A difference image processing algorithm is demonstrated to enhance damage detection and characterization by removing thermal variations not associated with defects. In addition, a one-dimensional multilayered thermal model is used to characterize damage. Lastly, the thermography results are compared to other inspections such as non-immersion ultrasonic inspections and computed tomography X-ray.

Citation Download Citation

Joseph N. Zalameda, Eric R. Burke, F. Raymond Parker, Jeff P. Seebo, Christopher W. Wright, and James B. Bly "Thermography inspection for early detection of composite damage in structures during fatigue loading", Proc. SPIE 8354, Thermosense: Thermal Infrared Applications XXXIV, 835403 (18 May 2012); https://doi.org/10.1117/12.918126

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