Ambrosetti, Gianluca and Johner, Niklaus and Grimaldi, Claudio and Danani, Andrea and Ryser, Peter (2008) Percolative properties of hard oblate ellipsoids of revolution with a soft shell. Physical Review E, 78 (6). 061126. ISSN 2470-0053
Full text not available from this repository.Abstract
We present an in-depth analysis of the geometrical percolation behavior in the continuum of random assemblies of hard oblate ellipsoids of revolution. Simulations where carried out by considering a broad range of aspect-ratios, from spheres up to aspect-ratio 100 plate-like objects, and with various limiting two particle interaction distances, from 0.05 times the major axis up to 4.0 times the major axis. We confirm the widely reported trend of a consistent lowering of the hard particle critical volume fraction with the increase of the aspect-ratio. Moreover, assimilating the limiting interaction distance to a shell of constant thickness surrounding the ellipsoids, we propose a simple relation based on the total excluded volume of these objects which allows to estimate the critical concentration from a quantity which is quasi-invariant over a large spectrum of limiting interaction distances. Excluded volume and volume quantities are derived explicitly.
| Item Type: | Scientific journal article, Newspaper article or Magazine article |
|---|---|
| Subjects: | Physical sciences > Physics > Mathematical & theoretical physics |
| Department/unit: | Dipartimento tecnologie innovative > Istituto di ingegneria meccanica e tecnologia dei materiali |
| Depositing User: | Andrea Danani |
| Date Deposited: | 06 Mar 2015 06:27 |
| Last Modified: | 08 Jul 2016 09:23 |
| URI: | http://repository.supsi.ch/id/eprint/6219 |
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