Microwave Non-Destructive Testing Technique for Material Characterization of Concrete Structures via Electromagnetic Waves with FDTD

Authors

  • Ummu Sahin Sener Department of Mathematical Engineering Yıldız Technical University Istanbul, Turkey
  • Sebahattin Eker Informatics Institute Istanbul Technical University Istanbul, Turkey

Keywords:

cement-based samples, finite-difference timedomain simulation, layered media, perfectly matched layer, rebar

Abstract

Concrete is a nonhomogeneous medium that contains coarse aggregate, sand (fine aggregate), cement powder, water and porosity. Microwave non-destructive testing (NDT) technique is used to simulate three layered media that contains air gap, coarse aggregate and a two layered media that contain rebar and void is modeled as closest to the reality. Interaction of electromagnetic wave and the concrete pile is utilized for numerical simulation. A Finite-Difference Time-Domain (FDTD) method with Perfectly Matched Layer (PML) Absorbing Boundary Condition (ABC) is proposed to simulate electromagnetic wave propagation in FRP tube and composite pile. 2D simulation of a wave generated from a point source at microwave frequencies is obtained by using MATLAB®.

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References

K. J. Bois, A. D. Benally, and R. Zoughi, “Microwave near-field reflection property analysis of concrete for material content determination,” IEEE Transactions on Instrumentation and measurement, vol. 49, no. 1, pp. 49-55, 2000.

W. Wei, Z. Shao, Y. Zhang, R. Qiao, and J. Gao, “Fundamentals and applications of microwave energy in rock and concrete processing-A review,” Applied Thermal Engineering, 113751, 2019.

K. Yee, “Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media,” IEEE Transactions on Antennas and Propagation, vol. 14, no. 3, pp. 302-307, 1966.

A. Taflove and S. C. Hagness, Computational Electrodynamics: The Finite-Difference Time-Domain Method. Artech House, 2005.

J. P. Berenger, “A perfectly matched layer for the absorption of electromagnetic waves,” Journal of Computational Physics, vol. 114, no. 2, pp. 185-20,1994.

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Published

2020-11-07

How to Cite

[1]
Ummu Sahin Sener and Sebahattin Eker, “Microwave Non-Destructive Testing Technique for Material Characterization of Concrete Structures via Electromagnetic Waves with FDTD”, ACES Journal, vol. 35, no. 11, pp. 1390–1391, Nov. 2020.

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