Abstract This paper describes a series of physical and numerical experiments designed to evaluate elastic wave-inclusion interactions and the ability of crosshole travel-time tomography to detect anomalies in heterogeneous media. The effects of diffraction-driven time delays on wave propagation detection methodologies are considered using a simple circular Plexiglas plate with a carved slot. Then, the quality of the tomographic inversion for different wavelengths to ray-path lengths and anomaly size ratios are tested using a rectangular Plexiglas plate containing a circular cavity. Guidelines for establishing the proper measurement configuration are developed based on the observed wave-inclusion interactions. Finally, numerical simulations are performed to extend the proposed guidelines for stress-dependent field applications. The simulated results show that crosshole travel-time tomography, with a measurement configuration (e.g., choice of wavelength and ray-path length) considering diffraction phenomena, can detect the size of an anomaly in a stress-dependent heterogeneous medium with a 10% error.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Effect of wave-inclusion interactions in the crosshole tomographic imaging of heterogeneous media


    Beteiligte:
    Kim, Kyu-Sun (Autor:in) / Fratta, Dante (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2017-05-05


    Format / Umfang :

    12 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    Tomographic Imaging Stress Changes in Soil Media

    Santamarina, J.C. | Online Contents | 1993


    Crosshole seismic tomography across a masonry dam [2457-08]

    Wong, J. / SPIE | British Library Conference Proceedings | 1995


    Millimeter-Wave Tomographic Interferometry of Ejecta Concentrations in Plume-Surface Interactions

    Rasmont, Nicolas / Bansal, Ishaan / Al-Rashdan, Hussein et al. | AIAA | 2024


    Lamb wave tomographic imaging system for aircraft structural health assessment

    Schwarz, Willi G. / Read, Michael E. / Kremer, Matthew J. et al. | SPIE | 1999