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From computed tomography to mechanics of granular materials via level set bridge

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Abstract

This paper details the ‘level set bridge’: a single platform for the characterization of various aspects of granular micro-mechanics, including grain morphology, grain kinematics, and inter-granular contact. This platform is studied and verified for accuracy using synthetic examples, in particular, its robustness with respect to the variables of image resolution and noise. The level set bridge is then applied to analysis of XRCT images of real 3D triaxial experiments of two types of granular materials. Contact statistics and kinematics are reported inside and outside of the failure band of one, and kinematics inside a failure band are reported in the other, from preload to critical state.

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Notes

  1. ... and also capillary effects though in our case, the specimen were tested dry and not affected by capillary effects

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Authors and Affiliations

  1. Division of Engineering and Applied Science, California Institute of Technology, Pasadena, CA, 91125, USA

    Ivan Vlahinić, Reid Kawamoto & José E. Andrade

  2. CNRS, Laboratoire 3SR, Grenoble, France

    Edward Andò

  3. Université Grenoble Alpes, Laboratoire 3SR, Grenoble, France

    Gioacchino Viggiani

Authors
  1. Ivan Vlahinić
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  2. Reid Kawamoto
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  3. Edward Andò
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  4. Gioacchino Viggiani
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  5. José E. Andrade
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Corresponding author

Correspondence to José E. Andrade.

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Vlahinić, I., Kawamoto, R., Andò, E. et al. From computed tomography to mechanics of granular materials via level set bridge. Acta Geotech. 12, 85–95 (2017). https://doi.org/10.1007/s11440-016-0491-3

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  • DOI: https://doi.org/10.1007/s11440-016-0491-3

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