how to model a wire interacting by particles

Submitted by ma on Sun, 05/10/2015 - 08:38

Hi,
I want to model a wire in a spiral scheme (like a wire-reinforced membrane) that encloses some particles. the wire should interact with particles and should be able to deform . If bond atomstyle is applicable here what should I add to the code to effectively simulate the interactions. Is there any example in this case?

Any suggestion will be regarded
mojgan

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richti83's picture

richti83 | Mon, 05/11/2015 - 09:31

I think this is possible with bond/gran style.
Check my github fork at https://github.com/richti83/LIGGGHTS-WITH-BONDS for the needed modules and some very basic examples:
https://github.com/richti83/LIGGGHTS-WITH-BONDS/tree/master/examples/bon...

but be carefull, this a very beta version, especially the bond-force-dissipation factor in bond_gran.cpp should be set to 1 or even better to a velocity-dependant function to avoid plastic deformation over time.
As there is no funding at the moment this module needs to be community contributed, so let me know when you have good ideas to improve the model.
I need to say, I'm not the autor of the bond gran style, I only keep it up to date with latest liggghts.

Cheers,
Christian.

I'm not an associate of DCS GmbH and not a core developer of LIGGGHTS®
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ma | Sat, 05/23/2015 - 09:52

Thank you for your reply.
I will try it as soon as possible and will talk about the results.
best regards
ma