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2D Pebble Game with Central Forces
The percolation of rigidity in 2D central-force networks with no
special symmetries (generic networks) can be analyzed exactly
using the 2D Pebble Game Fortran Code, which can be downloaded
(follow the download link in the left-hand menu). The development
of this routines was originally due to D.J. Jacobs and M.F. Thorpe
[1,2], with subsequent input from Mykyta Chubynsky. Using three
pebbles, the program finds the total number of floppy modes;
decomposes the network into unique rigid clusters and identifies
those parts of the rigid clusters that are over-constrained or
stressed.The downloadable code comes with a test example (test.f), which describes how to initialize the parameters, build the network and call the subroutines, so you can verify, learn and see how a starting floppy network becomes rigid and eventually stressed by the continued addition of constraints to the network (which can be done by un-commenting some lines described in the program test.f). Download the Source Code
2dpebble.tar.gz
Files available for download.
Download a brief description of the 2D pebble game algorithm.2D_CF_description.pdf |
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