Numerical simulation of normal stress distribution on the base of granular piles
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Wu, Yong Hong
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Alshanti, W. and Wiwatanapataphee, B. and Wu, Y.H. 2012. Numerical simulation of normal stress distribution on the base of granular piles. Journal of Mathematical Sciences: Advances and Applications. 14 (1): pp. 1-16.
Journal of Mathematical Sciences: Advances and Applications
Department of Mathematics and Statistics
In this paper, we develop a mathematical model and numerical technique to investigate the distribution of the normal force on the base of granular piles. Two-dimensional discrete element (DEM) simulations, based on the soft particle contact model, have been carried out to generate granular piles by pouring granules from a rising funnel with a small outlet. The results show that the normal force distributions under the granular piles that constructed from localized source exhibit a local minimum at the centre of the base under the pile vertex. The results are in good agreement with experimental observations.
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