Thank you for your reply! I have two questions about the demo "DEMdemo-Fracture-Box".
(1) After i have run this demo for one day, there is still nothing outputed. Is it fact that the DEME will run a long time once a fracture model is used? (2) How to tell DEME the contact force models between different familys? I did not see any snippet which undertakes this work, although the demo has at least two kinds of contact force model. The question i really want to ask is that, if we have more than three familys in our model and there are more than two familys consist of spherical particles, how to tell DEME the contact force model between different familys, and tell DEME the contact force model between the particles of a family in the same time. Thank you, Weigang On Thursday, May 23, 2024 at 10:10:14 PM UTC+8 Ruochun Zhang wrote: > No. That's because the *sphere components* in a clump are just shape > representations, and they have no physics, only material properties. If > they did have interaction with each other then every clump would've > immediately exploded upon simulation starting. > > Thank you, > Ruochun > > On Thursday, May 23, 2024 at 12:16:32 PM UTC+8 [email protected] wrote: > >> Hi Ruochun, >> >> Thank you for your reply! I have a question about the clump. Do the >> particles in a clump interact with each other via any force model? >> >> Thank you, >> Weigang >> >> On Monday, May 20, 2024 at 10:26:03 PM UTC+8 Ruochun Zhang wrote: >> >>> Hi Weigang, >>> >>> Yes. Again, DEME only cares about the position and radius of the >>> initial spheres, so you can supply it however you want. If you have a file >>> that records this information using your own format, then the easiest thing >>> is to have your own C++ or Python script that reads it into arrays and then >>> feeds them to the solver. If your file shares the format with DEME's >>> standard clump output file, or your file is simply the output of >>> *WriteClumpFile*, then you can conveniently load clump positions and >>> orientations by *ReadClumpXyzFromCsv *and *ReadClumpQuatFromCsv *(examples >>> are in GRCPrep_Part1 and 2). Note that currently, sphere radius cannot be >>> read from standard clump output files since it's part of the clump template >>> information thus not in the clump output. >>> >>> Thank you, >>> Ruochun >>> >>> On Monday, May 20, 2024 at 12:56:56 PM UTC+8 [email protected] wrote: >>> >>>> Hi Everyone, >>>> >>>> I would like to generate a block which consists of a assembly spheres. >>>> Is it possible to generate the block by other code, and then load it into >>>> DEM-Engine via a file containg the informations (such as position and >>>> radius) of the spheres? >>>> >>>> Thank you, >>>> Weigang >>>> >>> -- You received this message because you are subscribed to the Google Groups "ProjectChrono" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/projectchrono/e820b398-d80d-4df0-9c4b-55c7cdbe49f8n%40googlegroups.com.
