Question #693898 on Yade changed:
https://answers.launchpad.net/yade/+question/693898
Status: Answered => Open
David Alber is still having a problem:
Dear Luc,
1)
I would have expected that. However, even if manually setting the interaction
'isOnJoint', the force between the two spheres is still calculated from the
stiffness of the young module. This is demonstrated in the output of the
minimal example:
Output: 'isOnjoint' = True; 'kn' = 3e10 (which is the young module and NOT
jointNormalStiffness*phys->crossSection).
Is that related to the joint normal vector?
2)
We want to compress a packing of spheres. A local non-viscous damping shall be
represented by parallel bonds between every interaction to contribute to the
energy loss in the system [1]. Hence, we seek for joints with set
jointNormalStiffness between every interaction. This shall be achieved by the
often cited formalism of Potyondy & Cundall 'A bonded particle model for rock'
[2]. From the YADE launchpad question 635871 [3] I figured that the JCFpm
related classes are an implementation of this formalism and would therefore be
the right constitutive law.
Is that right?
3), 4) OK
[1]: [https://www.sciencedirect.com/science/article/pii/S0921883118302061]
[2]: [https://www.sciencedirect.com/science/article/pii/S1365160904002874]
[3]: [https://answers.launchpad.net/yade/+question/635871]
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