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Source Mechanisms

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Acoustic Emission Testing

Part of the book series: Springer Tracts in Civil Engineering ((SPRTRCIENG))

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Abstract

Source mechanisms of AE are stated theoretically, based on elastodynamic theory. Elastic waves due to a micro-crack nucleation in a homogeneous medium are mainly discussed. Starting with integral representation of elastodynamics, Green’s functions and Lamb solutions are discussed. Then, theoretical AE waves are formulated as the elastic waves due to the dislocation models. One key issue is the spatial derivatives of Green ‘s functions. Associated with the source mechanisms, deconvolution analysis, moment tensor and radiation patterns are discussed.

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Author information

Authors and Affiliations

  1. Graduate School of Engineering, Kyoto University, Kyoto, 615-8540, Japan

    Masayasu Ohtsu

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  1. Masayasu Ohtsu
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Correspondence to Masayasu Ohtsu .

Editor information

Editors and Affiliations

  1. Department of Materials Engineering, Technical University of Munich, München, Germany

    Christian U. Grosse

  2. Graduate School of Engineering, Kyoto University, Kyoto, Japan

    Masayasu Ohtsu

  3. MeMC, Vrije Universiteit Brussel, Brussels, Belgium

    Dimitrios G. Aggelis

  4. Department of Civil and Earth Resources Engineering, Graduate School of Engineering Organization, Kyoto University, Kyoto, Japan

    Tomoki Shiotani

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Ohtsu, M. (2022). Source Mechanisms. In: Grosse, C.U., Ohtsu, M., Aggelis, D.G., Shiotani, T. (eds) Acoustic Emission Testing. Springer Tracts in Civil Engineering . Springer, Cham. https://doi.org/10.1007/978-3-030-67936-1_7

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  • DOI: https://doi.org/10.1007/978-3-030-67936-1_7

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-67935-4

  • Online ISBN: 978-3-030-67936-1

  • eBook Packages: EngineeringEngineering (R0)

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