Hello everyone,
from my first attemts i think liggghts is a very nice simulation environment for high numbers of particles. However i have some questions.
1) What programs do you suggest for designing the complex walls ? (open source would be best)
2) Is there a way or is it planned to create a way to generate data about the stress/strain situation for each particle?
regards,
Martin Koester
ckloss | Tue, 03/16/2010 - 00:09
Re: Questions regarding complex walls and stresses
Mr. Koester,
1) basically, you can use any CAD program that can write (ASCII) STL files, e.g. Open Cascade
http://www.opencascade.org/
It is planned to implement support for binary STL files as well as meshes from open source meshers like gmesh
2) yes, there is a command to compute the stress tensor, see
http://lammps.sandia.gov/doc/compute_stress_atom.html
Currently, the drawback is that some contributions (e.g. forces from walls) are not added. This limitation will be relaxed in the future.
Regards,
Christoph