Virtual experiments on complex materials

Gary W. Delaney; Shio Inagaki; T. Di Matteo; Tomaso Aste

doi:10.1117/12.759412

5 January 2008 Virtual experiments on complex materials

Gary W. Delaney, Shio Inagaki, T. Di Matteo, Tomaso Aste

Proceedings Volume 6802, Complex Systems II; 68020G (2008) https://doi.org/10.1117/12.759412
Event: SPIE Microelectronics, MEMS, and Nanotechnology, 2007, Canberra, ACT, Australia

Abstract

We investigate complex materials by performing "Virtual Experiments" starting from three-dimensional images of grain packs obtained by X-ray CT imaging [1]. We apply this technique to granular materials by reconstructing a numerical samples of ideal spherical beads with desired (and tunable) properties. The resulting "virtual packing" has a structure that is almost identical to the experimental one. However, from such a digital duplicate we can calculate several static and dynamical properties (e.g. the force network, avalanche precursors, stress paths, stability, fragility, etc.) which are otherwise not directly accessible from experiments. Our simulation code handles three-dimensional spherical grains and it takes into account repulsive elastic normal forces, frictional tangential forces, viscous damping and gravity. The system can be both simulated within a vessel or with periodic boundary conditions.

Citation Download Citation

Gary W. Delaney, Shio Inagaki, T. Di Matteo, and Tomaso Aste "Virtual experiments on complex materials", Proc. SPIE 6802, Complex Systems II, 68020G (5 January 2008); https://doi.org/10.1117/12.759412

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available