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Electrical impedance spectroscopy-based nondestructive testing for imaging defects in concrete structures

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Title: Electrical impedance spectroscopy-based nondestructive testing for imaging defects in concrete structures
Authors: Ammari, Habib, Seo, Jin Keun, Zhang, Tingting, Zhou, Liangdong
Publication Year: 2014
Collection: Mathematics
Subject Terms: Mathematics - Analysis of PDEs
More Details: An electrical impedance spectroscopy-based nondestructive testing (NDT) method is proposed to image both cracks and reinforcing bars in concrete structures. The method utilizes the frequency-dependent behavior of thin insulating cracks: low-frequency electrical currents are blocked by insulating cracks, whereas high-frequency currents can pass through the conducting bars without being blocked by thin cracks. Rigorous mathematical analysis relates the geometric structures of the cracks and bars to the frequency-dependent Neumann-to-Dirichlet data. Various numerical simulations support the feasibility of the proposed method.
Document Type: Working Paper
DOI: 10.3390/s150510909
Access URL: http://arxiv.org/abs/1405.4582
Accession Number: edsarx.1405.4582
Database: arXiv
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  Data: <searchLink fieldCode="AR" term="%22Ammari%2C+Habib%22">Ammari, Habib</searchLink><br /><searchLink fieldCode="AR" term="%22Seo%2C+Jin+Keun%22">Seo, Jin Keun</searchLink><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Tingting%22">Zhang, Tingting</searchLink><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Liangdong%22">Zhou, Liangdong</searchLink>
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  Data: An electrical impedance spectroscopy-based nondestructive testing (NDT) method is proposed to image both cracks and reinforcing bars in concrete structures. The method utilizes the frequency-dependent behavior of thin insulating cracks: low-frequency electrical currents are blocked by insulating cracks, whereas high-frequency currents can pass through the conducting bars without being blocked by thin cracks. Rigorous mathematical analysis relates the geometric structures of the cracks and bars to the frequency-dependent Neumann-to-Dirichlet data. Various numerical simulations support the feasibility of the proposed method.
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  Data: 10.3390/s150510909
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