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[Question #248466]: Validation of Cundall Strack contact law?

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From: Hasan <question248466@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 09 May 2014 19:21:29 -0000
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New question #248466 on Yade:
https://answers.launchpad.net/yade/+question/248466

Hello all, 

I am trying to validate some contact laws that used in Yade before doing anything else . I started with  a very simple example of sphere dropping  and calculate the displacement at different speed ,  after that I  begun to compare the analytic solution with  Yade results. But there was some deviation in the analytic solution.

I don't know if I am using different contact law or will be there some error percentage between analytic and numerical solution.

- Could some one please direct me to the papers that  contain the exact contact law  for  Cundall Strack (ElasticContactLaw)  that used in Yade , and alos for Hertz Mindlin  law if that's possible.

- How much will probably be the percentage of error for a very simple test like this one?

Thanks,

Hasan

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