Conference proceeding
Acoustic emission analysis of full-scale honeycomb sandwich composite curved fuselage panels
Proceedings of SPIE, v 6934(1), 69340E
27 Mar 2008
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Acoustic emission (AE) was monitored in notched full-scale honeycomb sandwich composite curved fuselage panels during loading. The purpose of the study was to evaluate the AE technique as a tool for detecting notch tip damage initiation and evaluating damage severity in such structures. This evaluation was a part of a more general study on the damage tolerance of six honeycomb sandwich composite curved panels, each containing a different damage scenario. The overall program objective was to investigate the effects of holes and notches on residual strength. The investigation was conducted using the Full-Scale Aircraft Structural Test Evaluation and Research (FASTER) facility located at the Federal Aviation Administration William J. Hughes Technical Center, Atlantic City International Airport, NJ. This paper reports on the AE results recorded during the loading to failure of two selected panels. The results show that damage initiation at the tips of the notches, and its progression along the panel, could be detected and located. These AE results were correlated with the deformation and strain fields measured through strain photogrammetry, throughout loading, at the vicinity of these notches. This correlation aided in interpreting the AE results. While the fretting among the newly created fracture surfaces generated a large number of low-intensity AE signals, the high-intensity signals generated at high load levels provided a good measure for anticipating incipient fracture. Further, the AE results located internal disbonding caused during panel fabrication. The large number of low-intensity AE signals generated from the disbonded regions was associated with the fretting among the disbonded surfaces.
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Details
- Title
- Acoustic emission analysis of full-scale honeycomb sandwich composite curved fuselage panels
- Creators
- Frank A Leone, Jr - Drexel UniversityDidem Ozevin - Physical Acoustics Corp. (United States)Valery Godinez - Physical Acoustics CorporationBao Mosinyi - Drexel UniversityJohn G Bakuckas, Jr - Federal Aviation AdministrationJonathan Awerbuch - Drexel UniversityAlan Lau - Drexel UniversityTein-Min Tan - Drexel University
- Publication Details
- Proceedings of SPIE, v 6934(1), 69340E
- Conference
- Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2008 (2008)
- Publisher
- Society of Photo-Optical Instrumentation Engineers (SPIE)
- Number of pages
- 16
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000257064400012
- Scopus ID
- 2-s2.0-43449113858
- Other Identifier
- 991019173527404721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Acoustics
- Engineering, Civil
- Engineering, Environmental
- Materials Science, Characterization & Testing
- Materials Science, Multidisciplinary