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Descripción
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| It has been tried to simulate the behavior of stored materials using different numerical techniques during the last decades. The finite element method (FEM) has been one of them, and good agreements have been obtained in loading conditions. However, the complexity of the constitutive equations to be used in this method invalidates this technique for simulating dynamic situations, such as silo discharge. The discrete element method (DEM), which requires more computation, has become more popular nowadays because the constitutive equations necessary to describe the mechanical behavior of granular assemblies at a particle interaction level are simpler (Cundal and Strack, 1979) and computers have been more powerful. This technique requires knowledge to mechanical properties of the material (macroscopic and microscopic properties) such as restitution coefficient, Poisson?s ratio, elasticity modulus, particle-to-wall friction coefficient or particle-to-particle friction coefficient, and specific weight (Brown & Nielsen, 2008). There are some procedures and standards for the determination of some of these properties. However, there are others such as the particle-to-particle friction that still requires a standardized procedure. A method to determine the particle-to-particle friction coefficient is proposed here. Particles of different nature (Maize, beans, chickpeas and plastic pellets) were experimentally tested at different pressure levels and with different moisture content. | |
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Internacional
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Si |
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Nombre congreso
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21st International Congress of Chemical and Process Engineering CHISA 2014 Prague |
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Tipo de participación
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960 |
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Lugar del congreso
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Prague |
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Revisores
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Si |
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ISBN o ISSN
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978-80-02-02555-9 |
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DOI
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Fecha inicio congreso
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23/08/2014 |
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Fecha fin congreso
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27/08/2014 |
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Desde la página
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76 |
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Hasta la página
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76 |
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Título de las actas
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CHISA 2014 - 21st International Congress of Chemical and Process Engineering, 23-27 August 2014 Prague, Czech Republic: CD-ROM of full texts |