Yade

Questions about facet and CohesiveFrictionalContactLaw

Asked by Gastbye Liu

Hi everyone,

I am intertested about the cohesion between particles and I manage to
get the algorithm of that.

But now, I want to add cohesion between the sphere particle and facet.
I am concerned about the contact normal, penetration depth and contact
point when facet and sphere are split but there are still tensile force between
sphere and facet.

In Yade, how does that solve? The code is in this file CohesiveFrictionalContactLaw.cpp?

Best wishes,
Guangyu

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Bruno Chareyre (bruno-chareyre) said : 		#1

Hi,
You need to clarify what you call "facet" since there are multiple models with facets in Yade and this will influence the answer.
Bruno

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Gastbye Liu (gastbye) said : 		#2

Dear Bruno,

Thanks for your reply!

I am not sure about the name of the model. You know, the cohesion exists in spherical particles, in yade,
 the material is CohFrictMat.

However, between facet and particles, I only can set Coulomb friction in yade. But I want to add cohesion
between facet and spheres.

How to do that? Use which kind of material?

Best regards,
Guangyu

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Gastbye Liu (gastbye) said : 		#4

Hi everyone,

For example, I think I can add shear cohesion between facets and spheres and I use the material CohFricMat.

However, I don't know how to add normal cohesion. When facets and spheres are not physically contact (split),
the normal direction and contact point is hard to define? How to calculate the tensile force between facets
and spheres?

Thanks!

Best regards,
Guangyu

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Launchpad Janitor (janitor) said : 		#5

This question was expired because it remained in the 'Open' state without activity for the last 15 days.