Journal article
An active–passive acoustics approach for bond-line condition monitoring in aerospace skin stiffener panels
Aerospace science and technology, v 43
Jun 2015
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This article demonstrates the effectiveness of acoustic nondestructive inspection methods to monitor the condition of the bond-line in carbon fiber reinforced polymer stiffened panels. In particular, acoustic emission and guided ultrasonic waves were utilized experimentally to identify the onset of debonding in the stiffened panels and track its evolution under constant amplitude fatigue loading. Before testing, numerical simulations of wave propagation were carried out to evaluate the wave characteristics and optimize the placement of sensors along the spar. A damage index based on numerically produced guided waves was developed to estimate the extent of debonding which was tested and proved effective using actual experimental data. The panels were subjected to both quasi-static and fatigue loading conditions, while continuously recording acoustic emission and triggering guided ultrasonic waves at predetermined load levels. The acoustic emission activity associated with debonding was found to have a dual dominant frequency content and a low frequency centroid, which were also confirmed with wavelet analysis. In view of potential aerospace applications of the investigation presented herein, pattern recognition algorithms were also implemented and showed great potential for real-time detection of such damage.
Metrics
Details
- Title
- An active–passive acoustics approach for bond-line condition monitoring in aerospace skin stiffener panels
- Creators
- Prashanth Abraham Vanniamparambil - Drexel UniversityRami Carmi - Ben-Gurion University of the NegevFuad Khan - Drexel UniversityJefferson Cuadra - Drexel UniversityIvan Bartoli - Drexel UniversityAntonios Kontsos - Drexel University
- Publication Details
- Aerospace science and technology, v 43
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering; Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000356754300026
- Scopus ID
- 2-s2.0-84925855006
- Other Identifier
- 991019168531504721
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:
- Collaboration types
- International collaboration
- Web of Science research areas
- Engineering, Aerospace