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[lida <question237753@xxxxxxxxxxxxxxxxxxxxx>]

New question #237753 on Yade:
https://answers.launchpad.net/yade/+question/237753

Dear all,

I am a fresh man in yade, and now need to run a 3D model about die compaction of multi-particles. My geometry consists of a cylindrical wall ( 12mm in height, 4mm in diameter) and particles (about 1mm in diameter). I want to simulate the compaction processing which includes:1. the particles fill in the cylinder by gravity; 2. apply a displacement(6mm)  to compress; 3 when the displacement got 6mm, it is done. Then just simply  output a displacement-force curve. 

My questions are: 
1. How to create this cylinder which can be defined as a rigid body? just create a geom.facetCylinder or cylindrical wall?
2. How to define the particle packing to fill in the cylinder? Use ''sp=SpherePack()'' and ''sp.makeCloud''? 
3. How to define compression following by 6mm displacement instead of applying load?
4. How to export the displacement-force curve?

Any help will be greatly appreciated.

Thanks and regards,

Lida

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