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Interaction Laws and the Detachment Effect in Granular Media

Published online by Cambridge University Press:  03 September 2012

S. Luding ,
E. ClÉment ,
A. Blumen ,
J. Rajchenbach  and
J. Duran
S. Luding
Affiliation:
Theoretische Polymerphysik, Universität Freiburg, Rheinstraäe 12,-79104 FREIBURG, GERMANY Laboratoire d'Acoustique et d'Optique de la Matière Condensée, Universitè Pierre Marie Curie 4, place Jussieu, 75005 PARIS, FRANCE
E. ClÉment
Affiliation:
Laboratoire d'Acoustique et d'Optique de la Matière Condensée, Universitè Pierre Marie Curie 4, place Jussieu, 75005 PARIS, FRANCE
A. Blumen
Affiliation:
Theoretische Polymerphysik, Universität Freiburg, Rheinstraäe 12,-79104 FREIBURG, GERMANY
J. Rajchenbach
Affiliation:
Laboratoire d'Acoustique et d'Optique de la Matière Condensée, Universitè Pierre Marie Curie 4, place Jussieu, 75005 PARIS, FRANCE
J. Duran
Affiliation:
Laboratoire d'Acoustique et d'Optique de la Matière Condensée, Universitè Pierre Marie Curie 4, place Jussieu, 75005 PARIS, FRANCE
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Abstract

We study granular materials using both event driven (ED) and molecular dynamics (MD) methods. In the MD simulations we implement linear as well as nonlinear forces and also hysteretic interactions. For multiple collisions the two methods show differences: MD calculations lead to weak, whereas ED methods result in rather strong dissipation, as determined through an effective restitution coefficient.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 367: Symposium P – Fractal Aspects of Materials , 1994 , 495
Copyright
Copyright © Materials Research Society 1995

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