Frequency domain instantaneous wavenumber estimation for damage quantification in layered plate structures

Olivier Mesnil, Hao Yan, Massimo Ruzzene, Kamran Paynabar, Jianjun Shi

Research output: Contribution to conferencePaper

4 Scopus citations

Abstract

Guided wavefield detection is at the basis of a number of promising techniques for the identification and the characterization of damage in plate structures. Among the processing techniques proposed, the estimation of instantaneous wavenumbers can be used as an effective metric that localize and quantifies delaminations in composite plates. A process able to estimate the in-plane and out-of-plane (depth) coordinate of a feature in a 2D structure using the Frequency Domain InstantaneousWavenumber (FDIW) damage quantification technique is detailed in this paper. A post processing algorithm using a smooth sparse decomposition is used to highlight the studied features. The effectiveness of this method combined to the post processing technique is demonstrated for both numerical and experimental cases. This proposed methodology can be considered as a first step towards a hybrid structural health monitoring/nondestructive evaluation (SHM/NDE) approach for damage assessment in composites.

Original languageEnglish (US)
Pages2338-2345
Number of pages8
StatePublished - Jan 1 2014
Externally publishedYes
Event7th European Workshop on Structural Health Monitoring, EWSHM 2014 - Nantes, France
Duration: Jul 8 2014Jul 11 2014

Conference

Conference7th European Workshop on Structural Health Monitoring, EWSHM 2014
CountryFrance
CityNantes
Period7/8/147/11/14

Keywords

  • Lamb wave propagation
  • Non destructive evaluation
  • Smooth sparse decomposition algorithm
  • Structural health monitoring

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Safety, Risk, Reliability and Quality
  • Building and Construction
  • Computer Science Applications

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  • Cite this

    Mesnil, O., Yan, H., Ruzzene, M., Paynabar, K., & Shi, J. (2014). Frequency domain instantaneous wavenumber estimation for damage quantification in layered plate structures. 2338-2345. Paper presented at 7th European Workshop on Structural Health Monitoring, EWSHM 2014, Nantes, France.