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[behzad majidi <question247006@xxxxxxxxxxxxxxxxxxxxx>]

Question #247006 on Yade changed:
https://answers.launchpad.net/yade/+question/247006

behzad majidi posted a new comment:

Alright, from what I understood so far;

Let's say I want to create a new constitutive law in which the contacts
between the spheres are governed by a Kelvin model(dashpot in parallel
with a spring) in series with another spring.

I this case I need a new InteractionPhysics.
The contact law will have three parameters two spring stiffnesses and a dashpot viscosity. It is supposed to be a bulk material ans so  will need bonds between the spheres. 

Do I need to define a new class of material?
Or we define a functor which creates the required InteractionPhysics? 
Or both, even?!

We have already CpFrictMat which holds normal and shear cohesion. Can I
use that?

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