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
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.
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”
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.
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