Synthèse
Volume 27, Numéro 2, Pages 65-74
2021-12-29
Authors : Houhamdi Sami . Gallego Vazquez Eutiquio . Djeghaba Kamel .
In this work, we have simulated the behavior of the granular flow of dry wheat material inside a cylindrical steel silo with a concentric hopper during the filling and emptying process. The influence on the wall was studied by obtaining the pressures and stresses using the Finite Element Method (MEF) and Discrete Element Method (DEM). The obtained results by the analytical formulas of EUROCODE, the FEM and DEM are compared. The analyzed results include the vertical distributions of pressures that the ensiled material exerted on the silo walls and the distributions of normal and tangential stresses under extreme actions of emptying and filling. The results show that the DEM simulation is more realistic even by using the upscaling technique with a particle scale factor of 10. The pressures obtained by simulations are close to those obtained by EC, and the stresses are almost identical.
FEM simulation ; DEM simulation ; Granular material ; Steel silo ; Hopper
Bouregba Mohamed
.
pages 146-151.
Lagraf Fairouz
.
Rechem Djamil
.
Guergouri Kamel
.
pages 52-58.
Maizai Abdelhakim
.
Hocine Abdelkader
.
Ghouaoula Abdelhamid
.
Hadj Meliani Mohamed
.
pages 245-253.
Temami Oussama
.
Hamadi Djamal
.
Zatar Abdallah
.
Ayoub Ashraf
.
pages 99-103.