TY  - JOUR
A1  - Roul, Pradip
A1  - Schinner, Alexander
A1  - Kassner, Klaus
T1  - Simulation of the strain distribution under a two-dimensional sand pile
JF  - Powder technology : an international journal on the science and technology of wet and dry particulate systems
N2  - We study the averaged macroscopic strain tensor for a sand pile consisting of soft convex polygonal particles numerically, using the discrete-element method (DEM). First, we construct two types of "sand piles" by two different pouring protocols. Afterwards, we deform the sand piles, relaxing them under a 10% reduction of gravity. Four different types of methods, three best-fit strains and a derivative strain, are adopted for determining the strain distribution under a sand pile. The results of four different versions of strains obtained from DEM simulation are compared with each other. Moreover, we compare the vertical normal strain tensor between two types of sand piles qualitatively and show how the construction history of the piles affects their strain distribution.
KW  - Numerical simulation
KW  - Sand pile
KW  - Stress
KW  - Strain
KW  - Granular matter
KW  - Discrete-element method
Y1  - 2011
U6  - https://doi.org/10.1016/j.powtec.2011.08.039
SN  - 0032-5910
VL  - 214
IS  - 3
SP  - 406
EP  - 414
PB  - Elsevier
CY  - Lausanne
ER  -