Empirical Modeling of Surface Crack Detection in Concrete Using an Open-Ended Rectangular Waveguide
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.
J. Nadakuduti et al., "Empirical Modeling of Surface Crack Detection in Concrete Using an Open-Ended Rectangular Waveguide," AIP Conference Proceedings, American Institute of Physics (AIP), Apr 2005.
The definitive version is available at http://dx.doi.org/10.1063/1.1916722
Civil, Architectural and Environmental Engineering
Electrical and Computer Engineering
Keywords and Phrases
Nondestructive Testing; Cements (Building Materials); Concrete; Crack Detection; Rectangular Waveguides
Article - Conference proceedings
© 2005 American Institute of Physics (AIP), All rights reserved.