A MODEL FOR STATIC AND DYNAMIC PHENOMENA IN DEPOSITION PROCESSES

M. Hasan (Department of Mathematics, Universitas Jember, Jember 68121)
J.H.J. van Opheusden (Centre for Theoretical Physics, Twente University, Enschede, Netherlands)

Journal of the Indonesian Mathematical Society
Volume 13 Number 2 (October 2007)

We have developed a model for friction in a dry granular material,that allows multiple reversible transitions between stick and slipcontacts. The ultimate purpose of the model is to simulatedeposition processes. During these processes a pile structure isformed that is repeatedly destabilised by addition of new material.The present model does not yet include rotation. The model is testedfor a few simple systems. Finally we perform more extensive granulardynamics simulations using the model for 2D and 3D systems. In eachsystem, a steady flow of material is dropped onto a rough surface.DOI : http://dx.doi.org/10.22342/jims.13.2.83.173-189