Vibration based structural health monitoring and the modal strain energy damage index algorithm applied to a composite T-beam

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Abstract

A Finite Element based numerical model for a vibration based damage identification method for a 2.5D composite structure is discussed in this chapter. The linear dynamic response of an intact and a locally delaminated 16-layer unidirectional carbon fibre PEKK reinforced T-beam is analysed. A commercially available Finite Element package is employed for the numerical model. The aim of the model is to perform parametric studies. This virtual modelling replaces extensive experimental testing. The parametric study is preceded by an experimental verification of the numerical model. Subsequently, the capabilities of detection and localization of a delamination is analysed by varying the size and location of delamination, as well as the number of data points employed. The Modal Strain Energy Damage Index Algorithm is applied using the bending and torsion modes.
Original languageEnglish
Title of host publicationVibration and Structural Acoustics Analysis - Current Research and Related Technologies
EditorsC.M.A. Vasques, J. Dias Rodrigues
Place of PublicationDordrecht
PublisherSpringer
Pages121-150
Number of pages30
ISBN (Print)978-94-007-1702-2
DOIs
Publication statusPublished - 2011

Publication series

Name
PublisherSpringer Netherlands

Keywords

  • IR-77861
  • METIS-262066

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