Proceedings of the Computational Structural Engineering Institute Conference (한국전산구조공학회:학술대회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Application on the Modeling Rusults of GPR Wave Propagation through Concrete Specimens for Rebar Detection In Concrete Specimens

전자파 모델링을 이용한 콘크리트 내 철근탐사

  • 남국광 (연세대학교 건축공학과) ;
  • 임홍철 (연세대학교 건축공학과)
  • Published : 2001.10.01
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Abstract

The radar method is becoming one of the major nondestructive testing (NDT) techniques for concrete structures. Numerical modeling of electromagnetic wave is needed to analyze radar measurement results and to study the influence of measurement parameters on the radar measurements. Finite difference-time domain (FD-TD) method is used to simulate electromagnetic wave propagation through concrete specimens. In the experiments, three concrete specimens are made with the dimensions of 100 cm (length) x 100 cm (wideth) x 14 cm (depth). Three specimens had a Dl6 steel bar at 8, 10, 12 cm depth.

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