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Wyniki wyszukiwania dla: cegeo

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Wyniki wyszukiwania dla: cegeo

  • Particle shape dependence in 2D granular media

    Publikacja
    • C. Cegeo
    • B. Saint-Cyr
    • K. Szarf
    • C. Voivret
    • E. Azéma
    • V. Richefeu
    • J. Delenne
    • G. Combe
    • C. Nouguier-Lehon
    • P. Villard... i 3 innych

    - EPL-EUROPHYS LETT - Rok 2012

    Particle shape is a key to the space-filling and strength properties of granular matter. We consider a shape parameter eta describing the degree of distortion from a perfectly spherical shape. Encompassing most specific shape characteristics such as elongation, angularity and non-convexity, eta is a low-order but generic parameter that we used in a numerical benchmark test for a systematic investigation of shape dependence in sheared...

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  • A benchmark for particle shape dependence

    Publikacja
    • G. Combe
    • C. Nouguier-Lehon
    • E. Azéma
    • K. Szarf
    • B. Saint-Cyr
    • M. Chaze
    • F. Radjaï
    • P. Villard
    • J. Delenne
    • V. Richefeu... i 3 innych

    - Rok 2013

    Particle shape is a major parameter for the space-filling and strength properties of granular materials. For a systematic investigation of shape effect, a numerical benchmark test was set up within a collaborative group using different numerical methods and particles of various shape characteristics such as elongation, angularity and nonconvexity. Extensive 2D shear simulations were performed in this framework and the shear strength...

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  • Influence of the grains shape on the mechanical behavior of granular materials

    Publikacja

    - Rok 2009

    Discrete Element Method is a numerical method suitable for modeling geotechnical problems concerning granular media. In most cases simple forms of grains, like discs or spheres, are used. But these shapes are capable of soil behavior modeling up to a certain point only, they cannot reflect all of the features of the medium (large shear resistance and large volumetric change). In order to reflect the complex behavior of the real...

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