Question #156756 on Yade changed: https://answers.launchpad.net/yade/+question/156756
Chiara Modenese proposed the following answer: VdW forces can also have an influence on the contact law itself. There are different formulations around which consider the interplay between repulsive and attractive forces at the contact. In physics, this interplay exists and would change the contact stress distribution even. As I said, think first about the assumptions you want to make. If you will like to consider the superposition of adhesion to repulsive forces, then Bruno's suggestion can work well. Otherwise, you should modify your contact law, I believe. Chiara On 9 May 2011 16:11, Chareyre <[email protected]> wrote: > Question #156756 on Yade changed: > https://answers.launchpad.net/yade/+question/156756 > > Chareyre proposed the following answer: > Hi Mark, > > VdW forces are not implemented but I see no big obstacle to implement them. > It is close to the capillary force problem > (https://yade-dem.org/wiki/CapillaryTriaxialTest) in the sense that you > have additional forces that act between distant grains. > I recommend doing that in a separate engine, so that VdW forces will not > depend on a specific contact law (then you can switch between all > existing contact laws, linear or non-linear elasticity, contact moments, > etc.) > > Bruno > > -- > You received this question notification because you are a member of > yade-users, which is an answer contact for Yade. > > _______________________________________________ > Mailing list: https://launchpad.net/~yade-users > Post to : [email protected] > Unsubscribe : https://launchpad.net/~yade-users > More help : https://help.launchpad.net/ListHelp > -- You received this question notification because you are a member of yade-users, which is an answer contact for Yade. _______________________________________________ Mailing list: https://launchpad.net/~yade-users Post to : [email protected] Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
