Crack identification in beams and plates by discrete wavelet transform method

Joe Ming Yang, Cheng Neng Hwang, Bun Liang Yang

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


The purpose of this study is to detect the cracks of an aluminum beam and a plate by wavelet transform. A double-cracked beam and a plate with multiple cracks are evaluated by means of discrete wavelet transform in the present research, in which one-dimensional and two-dimensional discrete wavelet transforms are employed to detect the cracks on the beam and the plate, respectively. The results obtained from the experiments are compared with those obtained from the numerical modeling analysis. The experimental results reveal that the proposed modal analysis and the discrete wavelet transforms can effectively identify the damage locations and can be applied to more complex structures.

Original languageEnglish
Pages (from-to)464-472
Number of pages9
JournalChuan Bo Li Xue/Journal of Ship Mechanics
Issue number3
Publication statusPublished - 2008 Jun 1

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Mechanical Engineering


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