Yade

How to apply a “jump" boundary condition

Asked by Jiadun Liu

Dear all,

How to implement Eq.(20) in the paper http://onlinelibrary.wiley.com/doi/10.1002/nme.2875/abstract.

Best regards,
Jiadun

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Yade Edit question
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Bruno Chareyre
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Bruno Chareyre (bruno-chareyre) said : 		#1

It is already implemented I think. A difference is that the paper imposes equilibrium as a constraint, while typical DEM (namely Yade) obtains equilibrium as a result.

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Jiadun Liu (liujiadun) said : 		#2

Dear Bruno,

Thank you for your reply.

I'd like to impose equilibrium as a constraint.

Best regards,
Jiadun

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Best Bruno Chareyre (bruno-chareyre) said : 		#3

It is not possible in the general case. In the paper you mention, they actually use an equation of dynamics (eq. 58).
What they do is simply Yade's periodic conditions, explained with a different formalism.

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Jiadun Liu (liujiadun) said : 		#4

Thanks Bruno Chareyre, that solved my question.