Reply To: Non-linear calculation that fails, Deformation of a fence following an impact

[Armin]

Hi Raphael,

Thanks for the update. Here are a few suggestions to reduce the computational time of your model:

• Try to find the smallest element that is controlling the time step size in your analysis. See if you can increase the size of this element. In general, the use of uniform element size is recommended for explicit dynamics analysis. 
• Use multiple cores to run your analysis. This can be controlled under the Solution tab in the workbench.
• Look up online numerical techniques of "mass scaling" and "time scaling". They can help to significantly reduce the run time of your model but be cautious that when using these, you must check a few outputs, particularly energy plots, to make sure the results are reliable. The parameters associated with these can be found under the Analysis Settings.

For impact type problems, I found Ansys LS-DYNA more robust, but you can try the steps above first to see if you get any improvements.