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Quantitative Evaluation of Thermal Diffusivity and Thickness of Mortar Cover Using Induction Thermography

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Nondestructive Testing of Materials and Structures

Part of the book series: RILEM Bookseries ((RILEM,volume 6))

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Abstract

This paper presents an inverse method used to determine the thermal ­diffusivity and the cover thickness of a reinforced beam. The steel reinforcement bar was heated with an induction heating device and surface temperatures were recorded with an infrared camera. Then, a numerical modelling was developed in order to simulate the surface temperature. An alternate difference implicit algorithm was used to solve the thermal transfer equation. The method was implemented in an inverse problem that leads to the identification of the thermal diffusivity and the cover thickness. A study of the sensitivity functions revealed that both parameters can be simultaneously estimated during the heating phase. The computational results are in good agreement with reference values.

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References

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Authors and Affiliations

  1. Laboratoire de Génie Civil et géo-Environnement (LGCgE), Univ Lille Nord de France, U-Artois, FSA, Technoparc Futura, 62400, Béthune, France

    T. Du, F. Brachelet, D. Defer & E. Antczak

Authors
  1. T. Du
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  2. F. Brachelet
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  3. D. Defer
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  4. E. Antczak
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Corresponding author

Correspondence to F. Brachelet .

Editor information

Editors and Affiliations

  1. Atalim University, Kizilcasar Mahallesi, Incek Golbasi, Ankara, 06836, Turkey

    Oğuz Güneş

  2. Istanbul Technical University, Maslak, Istanbul, 34469, Turkey

    Yılmaz Akkaya

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© 2013 RILEM

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Du, T., Brachelet, F., Defer, D., Antczak, E. (2013). Quantitative Evaluation of Thermal Diffusivity and Thickness of Mortar Cover Using Induction Thermography. In: Güneş, O., Akkaya, Y. (eds) Nondestructive Testing of Materials and Structures. RILEM Bookseries, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0723-8_41

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  • DOI: https://doi.org/10.1007/978-94-007-0723-8_41

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  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-007-0722-1

  • Online ISBN: 978-94-007-0723-8

  • eBook Packages: EngineeringEngineering (R0)

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