Full-scale testing of an ultrasonic guided wave based structural health monitoring system for a thermoplastic composite aircraft primary structure

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Abstract

This paper describes the test campaign of an ultrasonic guided wave (GW) based structural health monitoring system (SHM) deployed on a full-scale stiffened panel of a thermoplastic composite horizontal stabilizer torsion box. The diagnostic capabilities of the SHM system were successfully evaluated by testing barely-visible impact damage of different severities, applied in different critical areas of the structure. The test campaign allowed the successful validation of a novel procedure to consistently and reliably design a piezoelectric transducer network. It also allowed the gathering of strong evidence that piezoelectric transducer technology has appropriate durability characteristics for real SHM applications. Finally, it enabled the study of the influence of audible structural vibrations on GW signals.
Original languageEnglish
Title of host publication9th European Workshop on Structural Health Monitoring
Subtitle of host publicationManchester (UK)
Number of pages12
Publication statusPublished - 2018
EventEWSHM 2018: 9th European Workshop on Structural Health - Manchester, United Kingdom
Duration: 10 Jul 201813 Jul 2018
Conference number: 9

Workshop

WorkshopEWSHM 2018: 9th European Workshop on Structural Health
Abbreviated titleEWSHM 2018
CountryUnited Kingdom
CityManchester
Period10/07/1813/07/18

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