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

2020 International Applied Computational Electromagnetics Society Symposium (ACES)

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®.

Keywords

Finite-difference time-domain method Materials science Nondestructive testing Rebar Acoustics Microwave Electromagnetic radiation Wave propagation Porous medium Void (composites) Porosity Composite material Optics Computer science Physics

Subject Areas

Electromagnetic Simulation and Numerical Methods ·Electrical and Electronic Engineering ·Physical Sciences

Microwave Engineering and Waveguides ·Electrical and Electronic Engineering ·Physical Sciences

Geophysical Methods and Applications ·Ocean Engineering ·Physical Sciences

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

Abstract

Keywords

Subject Areas

Citations by Year

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