I’m currently working on simulating an impact test using explicit dynamics. I decided to start off with simple simulation of a cube running into a larger block and bouncing off but I can’t seem to get this one to work. It runs without an issue in Abaqus but I need to switch to CalculiX. Here’s a picture of the successful Abaqus simulation:
The red block is given an initial velocity directed towards the large block, it runs into it and then bounces off. I have a surface to surface contact defined between the two blocks and the simulation will run for a few increments but then experiences a segmentation fault error. Using gdb I found that the segmentation fault is occuring in near3d.f (where I think CalculiX is trying to determine which elements are in contact). Has anyone experienced this before/ has any suggestions? Any help would be greatly appreciated.
Also, I am running this in ccx_2.17.
If you want to look at the input file, here’s a link to it: