MechEngineerNT
Mechanical
- Dec 13, 2013
- 25
Hi Guys,
I'm running a Primer crimp simulation. In step one, I'm applying a displacement to a roll die and plastically deforming a crimp on a primer. From there, I want to apply a pressure trace to the internal faces of the primer to see if it holds. I've been running this simulation in the non-linear static environment using tabular data, however, I'm getting very poor results. The primer is essentially popping out of the crimp. We've done testing on the crimped primers and all function as expected in real life. This leads me to believe that applying the pressure in a static environment is way to overly conservative. So essentially, I want to plastically deform the crimp, get those stressed conditions over to an explicit environment, then apply a pressure trace. The only run in i'm having is how do I change material of the crimp from non-linear isotropic to that of an explicit material? I've tried this without success since I need to get strain rate dependent loading data input into the material property for the explicit analysis. Anyone know how to do this?? Any advice would help.
Thank you,
MechengNT
I'm running a Primer crimp simulation. In step one, I'm applying a displacement to a roll die and plastically deforming a crimp on a primer. From there, I want to apply a pressure trace to the internal faces of the primer to see if it holds. I've been running this simulation in the non-linear static environment using tabular data, however, I'm getting very poor results. The primer is essentially popping out of the crimp. We've done testing on the crimped primers and all function as expected in real life. This leads me to believe that applying the pressure in a static environment is way to overly conservative. So essentially, I want to plastically deform the crimp, get those stressed conditions over to an explicit environment, then apply a pressure trace. The only run in i'm having is how do I change material of the crimp from non-linear isotropic to that of an explicit material? I've tried this without success since I need to get strain rate dependent loading data input into the material property for the explicit analysis. Anyone know how to do this?? Any advice would help.
Thank you,
MechengNT