A contact model for the yielding of caked granular materials

Autor:	Brendel, L., Török, J., Kirsch, R., Bröckel, U.
Rok vydání:	2011
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Soft Condensed Matter
Druh dokumentu:	Working Paper
Popis:	We present a visco-elastic coupling model between caked spheres, suitable for DEM simulations, which incorporates the different loading mechanisms (tension, shear, bending, torsion) in a combined manner and allows for a derivation of elastic and failure properties on a common basis. In pull, shear, and torsion failure tests with agglomerates of up to 10000 particles, we compare the failure criterion to different approximative variants of it, with respect to accuracy and computational cost. The failure of the agglomerates, which behave according to elastic parameters derived from the contact elasticity, gives also insight into the relative relevance of the different load modes. Comment: 10 pages, 5 figures, submitted to Granular Matter
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1101.5330 Zobrazit plný text záznamu View this record from Arxiv