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Crack Modeling for Structural Health Monitoring

Author(s):

Medium: journal article
Language(s): English
Published in: Structural Health Monitoring, , n. 2, v. 1
Page(s): 139-148
DOI: 10.1177/1475921702001002002
Abstract:

There are a number of approaches to the modeling of cracks in beam structures reported in the literature, that fall into three main categories; local stiffness reduction, discrete spring models, and complex models in two or three dimensions. This paper compares the different approaches to crack modeling, and demonstrates that for structural health monitoring using low frequency vibration, simple models of crack flexibility based on beam elements are adequate. This paper also addresses the effect of the excitation for breathing cracks, where the beam stiffness is bilinear, depending on whether the crack is open or closed. Most structural health monitoring methods assume that the structure is behaving linearly, whereas in practice the response will be nonlinear to an extent that varies with the form of the excitation. This paper will demonstrate these effects for a simple beam structure.

Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1177/1475921702001002002.
  • About this
    data sheet
  • Reference-ID
    10561439
  • Published on:
    11/02/2021
  • Last updated on:
    19/02/2021
 
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