On 25 February 2011 14:51, Bruno Chareyre <bruno.chare...@hmg.inpg.fr>wrote:
> They are beside the scope as long as the question is "how to define in > general a critical time-step for 2nd order explicit integration of > acceleration-velocity-position=0?". > Well, I have to disagree here. I think we need first to clearly define our equation, is it a linear or non linear one? Of course this depends on the specific contact model being used. In fact, even without damping but with a non-linear contact law like HM, the critical time step is not the one proposed by Cundall which holds only if the springs are linear. In fact, my initial guess was posed in the wrong manner, since I should have specified what kind of law we are considering here (implicitly I was considering the non linear case). Anyhow, we could start from the linear spring-dashpot model. > Cheers. Chiara > > Cheers. > > Bruno > > _______________________________________________ > Mailing list: https://launchpad.net/~yade-dev > Post to : yade-dev@lists.launchpad.net > Unsubscribe : https://launchpad.net/~yade-dev > More help : https://help.launchpad.net/ListHelp >
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