SHM of Composite Mono-Stringer Elements Based on Guided Waves

Abstract:

In this work, the applicability of structural health monitoring (SHM) technique for damage detection in two composite mono-stringers representative of composite fuselage are investigated. The two different manufacturing technologies are co-curing and co-bonding of composite mono-stringers to the skin. The panels were then impacted at the foot of the stringer to cause Barely Visible Impact Damage (BVID). Piezoelectric transducers were surface mounted on the mono-stringers, guided wave measurements before and after impact were taken and used for detecting damage based on Weighted Energy Arrival Method (WEAM).

• Periodical: Key Engineering Materials (Volume 827)
• Pages: 464-469
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.827.464
• Online since: December 2019
• Authors: D.G. Bekas*, M. Mora Mendias, Zahra Sharif Khodaei, Evangelos Karachalios, F.J. Chamorro Alonso, M.H. Aliabadi
• Keywords: BVID, Composite, Damage Detection, Mono-Stringer, Structural Health Monitoring

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