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Is it possible to make geometries interact with each other ?

Hey,

I'm using a student version of EDEM for a group project and part of the project is to run DEM simulations. My problem is that I am trying to get a geometry to interact with other geometries and particles simultaneously. Is this possible with a student version of EDEM? Currently when I try and make two geometries interact they just pass through each other. Also is it possible to make geometries affected by gravity?

Thanks

Abdul

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v2021.1

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PrasadAvilala

Hi Abdul,

In EDEM geometry to geometry interactions not allowed so far even with full version.

If you want study the geometry interactions, you can go with coupling EDEM with Motion Solve which is 2-way coupling.

Motion Solve is Multi body dynamics simulation software.

If you want to study structural analysis then you can export forces from EDEM and apply in structural solver and solve for strength analysis.

Please go through the below tutorial to understand, how to export force from EDEM and apply forces/pressure in OS

Tutorials, How To, Troubleshooting - EDEM - HyperMesh Tutorial: Export EDEM Data for FEA Analysis of Dump Truck (altair.com)

Thanks,

Prasad A

jpmorr

While it's not possible to make geoemtries interact, you can use EDEM coupling interface to apply your own custom rigid body dynamics, such as as applying gravity or moving relative to a force. There are some examples on the forum such as this one:

Script & Model Library - EDEM Coupling Interface - Applying Pressure to a Geometry (altair.com)

You could expand from this example to apply gravity to your geometry or evene write some simple geometry interaction rules to control some geoemtries. It's not exactly what you wanted but might help achieve something close to it.