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[Jan Stránský <question704138@xxxxxxxxxxxxxxxxxxxxx>]

Question #704138 on Yade changed:
https://answers.launchpad.net/yade/+question/704138

Jan Stránský proposed the following answer:
> Cohesion refers to ...

yes, the general meaning is clear.
The information request was rather what it actually does mean **for your model / simulation**.
Like if it can be a rigid body "perfectly cohesive" clump or you need mutual motion, possible split etc etc..

> For example, sand has no cohesion, and there is no attraction between
each particle;

It depends on definition, circumstances, ... :-)

Depending on what "sticky" and "cohesion" actually means for your model, you can:
- use clumps
- use a material/law dealing with "cohesion": CohFrict, JCFpm, Cpm, ... (search documentation for "cohesive" or "cohesion" keywords).
- use python (O.forces.addF, O.forces.setPermF, b.state.vel, ...) to adjust your model according to your needs
- ...

Cheers
Jan

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