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Wyniki wyszukiwania dla: clumps of discs

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Wyniki wyszukiwania dla: clumps of discs

  • Polygons vs. clumps of discs: A numerical study of the influence of grain shape on the mechanical behaviour of granular materials

    Publikacja

    - POWDER TECHNOLOGY - Rok 2011

    We performed a series of numerical vertical compression tests on assemblies 01 20 granular material using a Discrete Element code and studied the results with regard to the grain shape. The samples consist of 5000 grains made from either 3 overlapping discs (clumps - grains with concavities) or six-edged polygons (convex grains). These two grain type have similar external envelope, which is a fund ion of a geometrical parameter...

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  • Influence of grain shape on the mechanical behaviour of granular materials

    Publikacja

    - Rok 2009

    We performed series of numerical vertical compression tests on assemblies of 2D granular material using a Discrete Element code and studied the results in regard to the grain shape. The samples consist of 5000 grains made either of 3 overlapping discs (clump - grain with concavities) or of six-edged polygons (convex grain). These two types of grains have a similar external envelope, ruled with a geometrical parameter α. In the...

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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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