Journal article
Guided-wave Health Monitoring of Aircraft Composite Panels under Changing Temperature
Journal of intelligent material systems and structures, v 20(9), pp 1079-1090
01 Jun 2009
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This study deals with the health monitoring of fiber-reinforced composite panels using ultrasonic guided waves and flexible piezocomposite transducer patches in a changing temperature environment corresponding to normal aircraft operations (-40 degrees C to +60 degrees C). The wave propagation problem is first studied analytically by a model that accounts for temperature effects on the transducer piezo-mechanical properties, the transducer-panel interaction, and the panel wave dispersion properties. Experiments are also conducted on a Carbon-fiber Reinforced Plastic (CFRP) [0/+/- 45/0](S) laminate subjected to the -40 degrees C to +60 degrees C temperature excursion. Both model and experiment indicate substantial changes in the detected guided wave amplitude solely due to the temperature excursion. The second part of the study presents an application to bond defect detection in a simulated CFRP skin-to-spar joint of Unmanned Aerial Vehicle wings. It is shown that a statistical outlier analysis based on multiple guided-wave amplitude features and on a baseline partition is effective in detecting bond defects (poorly cured adhesive and two sizes of disbonds) despite the -40 degrees C to +60 degrees C temperature change. The results encourage the development of a continuous health monitoring system for composite aircraft wings during their normal operations.
Metrics
Details
- Title
- Guided-wave Health Monitoring of Aircraft Composite Panels under Changing Temperature
- Creators
- Salvatore Salamone - Univ Calif San Diego, Dept Struct Engn, NDE & Struct Hlth Monitoring Lab, La Jolla, CA 92093 USAIvan Bartoli - Univ Calif San Diego, Dept Struct Engn, NDE & Struct Hlth Monitoring Lab, La Jolla, CA 92093 USAFrancesco Lanza di Scalea - Univ Calif San Diego, Dept Struct Engn, NDE & Struct Hlth Monitoring Lab, La Jolla, CA 92093 USAStefano Coccia - Univ Calif San Diego, Dept Struct Engn, NDE & Struct Hlth Monitoring Lab, La Jolla, CA 92093 USA
- Publication Details
- Journal of intelligent material systems and structures, v 20(9), pp 1079-1090
- Publisher
- Sage
- Number of pages
- 12
- Grant note
- FA9550-07-1-0016 / Air Force Office of Scientific Research; United States Department of Defense; Air Force Office of Scientific Research (AFOSR)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000266817200008
- Scopus ID
- 2-s2.0-67649519656
- Other Identifier
- 991020547322104721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary