Damage detection of composite plate using finite element analysis based on structural health monitoring

K. T. Kang, H. J. Chun, J. H. Son, J. H. Byun, M. K. Um, S. K. Lee

Research output: Contribution to conferencePaper

Abstract

Delamination in composite structures plays a major role in lowering structural strength and stiffness, consequently downgrading system integrity and reliability. The aim of this paper is to show that Lamb waves may be effectively generated using piezoelectric transducers embedded inside a composite plate for health monitoring application. A Lamb wave-based quantitative identification technique for delamination in VARTM composite structures was established. Propagation of Lamb waves in composite plates was evaluated using dynamic FEM analysis. Then, an experiment is carried out to verify the validity of the analytical study based on finite element models. The study was carried out to assess damages in composite plate by fusing information from multiple sensing paths of the embedded network. It was based on the Hilbert transform, signal correlation and probabilistic searching. The obtained results show that satisfactory detection of defects could be achieved by proposed method.

Original languageEnglish
Publication statusPublished - 2009 Dec 1
Event17th International Conference on Composite Materials, ICCM-17 - Edinburgh, United Kingdom
Duration: 2009 Jul 272009 Jul 31

Other

Other17th International Conference on Composite Materials, ICCM-17
CountryUnited Kingdom
CityEdinburgh
Period09/7/2709/7/31

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Ceramics and Composites

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    Kang, K. T., Chun, H. J., Son, J. H., Byun, J. H., Um, M. K., & Lee, S. K. (2009). Damage detection of composite plate using finite element analysis based on structural health monitoring. Paper presented at 17th International Conference on Composite Materials, ICCM-17, Edinburgh, United Kingdom.