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

Joseph N. Zalameda | Zendy; Eric Burke | Zendy; Frazier Parker | Zendy; Jeffrey P. Seebo | Zendy; Christopher W. Wright | Zendy; James B. Bly | Zendy

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

Author(s) -

Joseph N. Zalameda,

Eric Burke,

Frazier Parker,

Jeffrey P. Seebo,

Christopher W. Wright,

James B. Bly

Publication year - 2012

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.918126

Subject(s) - thermography , nondestructive testing , composite number , materials science , thermal , structural engineering , ultrasonic sensor , composite material , computer science , infrared , acoustics , optics , engineering , radiology , medicine , physics , meteorology

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.

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