Hello everyone,

I am working on a DEM simulation of compaction of soft particles(soft wood) in software named Aspherix. Currently, I am trying to compact the soft particles inside cylinder and pressing it using stamp, with 75000N force and the particles properties are used of spruce(soft wood), which has very low young's modulus. During compaction, the stamp is pressing particles through the wall of the cylinder and particles get lost. Same thing happens for the stamp, as the stamp reached to the simulation region end and leaves the boundary. Could someone please explain the reason behind this phenomena and what could be wrong in my simulation? and How could I get particles to resist the stamp? So, the particles do not leave the boundary.

(I am planning to compact it even with more higher force. But, I am facing problems with current force. So, could not use the higher force until I get this solved.)

Thank you.

Regards,

Prerak.