Combining passive thermography and acoustic emission for large area fatigue damage growth assessment of a composite structure

Joseph N. Zalameda; Michael R. Horne; Eric I. Madaras; Eric R. Burke

doi:10.1117/12.2220402

11 May 2016 Combining passive thermography and acoustic emission for large area fatigue damage growth assessment of a composite structure

Joseph N. Zalameda, Michael R. Horne, Eric I. Madaras, Eric R. Burke

Author Affiliations +

Proceedings Volume 9861, Thermosense: Thermal Infrared Applications XXXVIII; 98610G (2016) https://doi.org/10.1117/12.2220402
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

Abstract

Passive thermography and acoustic emission data were obtained for improved real time damage detection during fatigue loading. A strong positive correlation was demonstrated between acoustic energy event location and thermal heating, especially if the structure under load was nearing ultimate failure. An image processing routine was developed to map the acoustic emission data onto the thermal imagery. This required removing optical barrel distortion and angular rotation from the thermal data. The acoustic emission data were then mapped onto thermal data, revealing the cluster of acoustic emission event locations around the thermal signatures of interest. By combining both techniques, progression of damage growth is confirmed and areas of failure are identified. This technology provides improved real time inspections of advanced composite structures during fatigue testing.

Citation Download Citation

Joseph N. Zalameda, Michael R. Horne, Eric I. Madaras, and Eric R. Burke "Combining passive thermography and acoustic emission for large area fatigue damage growth assessment of a composite structure", Proc. SPIE 9861, Thermosense: Thermal Infrared Applications XXXVIII, 98610G (11 May 2016); https://doi.org/10.1117/12.2220402

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available