Job reported as finished, but the analysis is not done

[Cimek]

Those values are just placeholders, for a more complex material model and the values are so unusual since the material is uncured rubber. I experimented with Johnson-Cook, but couldn’t get it to converge. You can read about it here:

Simulation of rolling

Hi I have a question regarding simulating rolling of rubber. Here is what I currently have: [image] A steal roller and a sheet of rubber that is going to get rolled. I’m using PPM v1.4.0, analysis is dynamic implicit (I couldn’t get explicit to run). The roller is tied to a reference point that is constrained in the x and y direction (i tied the outer surface of the roller, to make it rigid). There is a symmetry BC on the roller and rubber sheet in the z direction. For now the roller and th…

I also found some more testing data for a similar compound here:
https://www.researchgate.net/publication/341604393_Effect_of_the_Temperature_and_Strain_Rate_on_the_Tension_Response_of_Uncured_Rubber_Experiments_and_Modeling

I tried getting the Johnson-Cook parameters using manual curve fitting to the data from this paper using excel, but this is probably not ideal. Then because I couldn’t get it to converge I went back to bi-linear plasticity.