Vibro-Acoustic modulation based damage identification in a composite skin-stiffener structure

T.H. Ooijevaar, Richard Loendersloot, M.D. Rogge, Remko Akkerman, Tiedo Tinga

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

1 Citation (Scopus)
78 Downloads (Pure)

Abstract

The vibro-acoustic modulation method is applied to a composite skin-stiffener structure to investigate the possibilities to utilise this method for damage identification in terms of detection, localisation and damage quantification. The research comprises a theoretical part and an experimental part. An impact load is applied to the skin-stiffener structure, resulting in a delamination underneath the stiffener. The structure is interrogated with a low frequency pump excitation and a high frequency carrier excitation. The analysis of the response in a frequency band around the carrier frequency is employed to assess the damage identification capabilities and to gain a better understanding of the modulations occurring and the underlying physical phenomena. Though vibro-acoustic is shown to be a sensitive method for damage identification, the complexity of the damage, combined with a high modal density, complicate the understanding of the relation between the physical phenomena and the modulations occurring.
Original languageEnglish
Title of host publication7th European Workshop on Structural Health Monitoring
EditorsV. Le Cam, L. Mevel, F. Schoefs
Place of PublicationNantes (F)
Pages544-551
Publication statusPublished - 8 Jul 2014
Event7th European Workshop on Structural Health Monitoring, EWSHM 2014 - Nantes, France
Duration: 8 Jul 201411 Aug 2014
Conference number: 7

Conference

Conference7th European Workshop on Structural Health Monitoring, EWSHM 2014
Abbreviated titleEWSHM
CountryFrance
CityNantes
Period8/07/1411/08/14

Keywords

  • METIS-304224
  • IR-91387

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