Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Integration schemes and damping algorithms in distinct element models

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

This Article is currently unavailable for purchase.
Add to Favorites
You must be logged in to use this functionality

Computational run times in distinct element method (DEM) simulations of granular flow can be large and limit the size of the system being modeled. Hence, it is important to use efficient numerical integration schemes. This paper investigates some numerical integration schemes for their accuracy, stability and computational efficiency. It also investigates the effect of different particle contact damping algorithms on the model mathematical accuracy and stability. It is shown that the half-step leapfrog Verlet algorithm is the best integration scheme, while Euler is poor in terms of accuracy. Non-linear damping has been shown in the literature to be more realistic in terms of experimental data on particle impact coefficient of restitution. This was reproduced here. This paper also shows that non-linear damping reduces the mathematical error in the integration scheme because the force change is less discontinuous. However, in particle assembly simulations, filling a hopper, the non-linear damping model was less stable, probably because less energy is dissipated at low velocities.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation