Abstract
Employing two-dimensional molecular dynamics (MD) simulations of soft particles, we study their non-affine responses to quasi-static isotropic compression where the effects of microscopic friction between the particles in contact and particle size distributions are examined. To quantify complicated restructuring of force-chain networks under isotropic compression, we introduce the conditional probability distributions (CPDs) of particle overlaps such that a master equation for distribution of overlaps in the soft particle packings can be constructed. From our MD simulations, we observe that the CPDs are well described by q-Gaussian distributions, where we find that the correlation for the evolution of particle overlaps is suppressed by microscopic friction, while it significantly increases with the increase of poly-dispersity.
Original language | English |
---|---|
Pages (from-to) | 409-417 |
Number of pages | 9 |
Journal | Computational particle mechanics |
Volume | 4 |
Issue number | 4 |
DOIs | |
Publication status | Published - Oct 2017 |
Keywords
- METIS-322092
- IR-104553