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Title: Fractal mechanism for characterizing singularity of mode shape for damage detection

Abstract

Damage is an ordinary physical phenomenon jeopardizing structural safety; damage detection is an ongoing interdisciplinary issue. Waveform fractal theory has provided a promising resource for detecting damage in plates while presenting a concomitant problem: susceptibility to false features of damage. This study proposes a fractal dimension method based on affine transformation to address this problem. Physical experiments using laser measurement demonstrate that this method can substantially eliminate false features of damage and accurately identify complex cracks in plates, providing a fundamental mechanism that brings the merits of waveform fractal theory into full play in structural damage detection applications.

Authors:
 [1];  [2];  [2]
  1. Department of Engineering Mechanics, Hohai University, Nanjing 210098 (China)
  2. Institute of Fluid-Flow Machinery, Polish Academy of Sciences, ul. Fiszera 14, 80-952 Gdansk (Poland)
Publication Date:
OSTI Identifier:
22253951
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 103; Journal Issue: 22; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRACKS; DAMAGE; FRACTALS; LASERS; SHAPE; SINGULARITY; WAVE FORMS

Citation Formats

Cao, M. S., Ostachowicz, W., Faculty of Automotive and Construction Machinery, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Bai, R. B., E-mail: bairunbo@gmail.com, and Radzieński, M. Fractal mechanism for characterizing singularity of mode shape for damage detection. United States: N. p., 2013. Web. doi:10.1063/1.4833837.
Cao, M. S., Ostachowicz, W., Faculty of Automotive and Construction Machinery, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Bai, R. B., E-mail: bairunbo@gmail.com, & Radzieński, M. Fractal mechanism for characterizing singularity of mode shape for damage detection. United States. https://doi.org/10.1063/1.4833837
Cao, M. S., Ostachowicz, W., Faculty of Automotive and Construction Machinery, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Bai, R. B., E-mail: bairunbo@gmail.com, and Radzieński, M. 2013. "Fractal mechanism for characterizing singularity of mode shape for damage detection". United States. https://doi.org/10.1063/1.4833837.
@article{osti_22253951,
title = {Fractal mechanism for characterizing singularity of mode shape for damage detection},
author = {Cao, M. S. and Ostachowicz, W. and Faculty of Automotive and Construction Machinery, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw and Bai, R. B., E-mail: bairunbo@gmail.com and Radzieński, M.},
abstractNote = {Damage is an ordinary physical phenomenon jeopardizing structural safety; damage detection is an ongoing interdisciplinary issue. Waveform fractal theory has provided a promising resource for detecting damage in plates while presenting a concomitant problem: susceptibility to false features of damage. This study proposes a fractal dimension method based on affine transformation to address this problem. Physical experiments using laser measurement demonstrate that this method can substantially eliminate false features of damage and accurately identify complex cracks in plates, providing a fundamental mechanism that brings the merits of waveform fractal theory into full play in structural damage detection applications.},
doi = {10.1063/1.4833837},
url = {https://www.osti.gov/biblio/22253951}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 22,
volume = 103,
place = {United States},
year = {Mon Nov 25 00:00:00 EST 2013},
month = {Mon Nov 25 00:00:00 EST 2013}
}