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Re: [Question #657637]: Applying confinement (rigid boundary) to a cylindrical sample

 

Question #657637 on Yade changed:
https://answers.launchpad.net/yade/+question/657637

Swapnil posted a new comment:
Yes mate it works with the inclusion of those engines. Foolishly, I completely forgot about those for the new facet bodies.
Thanks :)


Yes, I am first trying the static boundary case ( where the material of the facetCylinder itself holds the spheres intact). Thanks to you, that appears to work successfully now.


As you are suggesting, for the active confining pressure case we can directly use the facetCylinder as one body and apply the desired stress, isn't it? Then should I try the following in addition to [1]:


 facets.state.blockedDOFs='XYZz'  --> this command seems okay

O.forces.addF(f.id,preStress*a*n)    --> I am confused about the
application of forces using the facetcylinder as a whole. The
(f.id,Prestress*a*n) used here is when we apply forces through each
facet. In order to apply force from the facetcylinder as a whole (such
that each facet does the same) can I use:  O.forces.addF(facets.id,0.20)
where, for e.g., 0.20 represents the magnitude of force(stress) applied.

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