Bonded Particle Model for Rock

Hello,

Please see the attached paper.

Is it possible to do a bonded particle model simulation in MFiX-DEM ?

If possible, is there any tutorial on them ?

Please let me know. I look forward to hearing from you.

Thanks and Regards,

Debashis

Potyondy Cundall 2004 Bonded Particle Model Rock

de project files - Main menu/Submit bug report - attach zip file here.

please don’t post copyrighted journal articles on the forum

Thank you. Won’t do. Thanks for posting the link.

Best Regards,

Debashis

There is a Glued-Sphere particle model in MFiX, is that what you are looking for? Check out the GSP tutorials like “fb_gsp_energy” (Fluidized bed with energy equation - Glued-sphere) which is modeled on a rock

Dr. Waldman,

Thanks a lot. I will have a look. Also, are there example tutorials on superquadric discrete element method (SuperDEM) ?

Please let me know.

Thanks and Best Regards,

Debashis

Open the GUI, select “New Project” and you will see all the available tutorials. You can filter by model type. There are examples for all available models. These are not all step-by-step tutorials, but they are examples for you to study.

Dr. Waldman,

I will surely see the tutorials. One more question.is “whether the “glue” can break during an analysis (as the bonds in PFC can break if the applied load exceeds the bond strength) or whether they stay glued together no matter the load”

Please let me know if the glue bond can break.

I look forward to hearing from you.

Thanks and Regards.

Debashis

In the current implementation, the GSP are rigid (no deformation, no breakage). We are working on a flexible GSP model (can deform and break) that we plan to release sometime this year, possibly in March 2026.

Dr. Dietiker,

Thank you very much. I will look forward to the release of the next version MFiX 25.4 in with the flexible GSP model (can deform and break). Thanks and Best Regards, Sincerely, Debashis