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Empirical Modeling of Surface Crack Detection in Concrete using an Open-Ended Rectangular Waveguide

Research output: Contribution to journal › Article › peer-review

Abstract

Microwave nondestructive testing and evaluation of surface-breaking and internal cracks in cement-based materials, employing open-ended rectangular waveguide probes, has the potential to be a viable approach for the purpose of structural health monitoring. This paper presents an empirical model for simulating crack characteristic signal (signal reflected by a cracked sample under test as a function of scanning distance) given the dielectric property of the material, crack dimensions, probe aperture dimensions, operating frequency and the standoff distance.

Keywords

  • Cracks
  • Materials Properties
  • Dielectric Properties
  • Surface Structure
  • Dielectric Materials

Disciplines

  • Civil Engineering
  • Electrical and Computer Engineering

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