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

[Raphaël BEVAN]

Hi Armin, 

 

First of all, thanks a lot for your quick answer. 

Last week we tried to apply your advice. 

First of all, we don’t have LS-DYNA so we tried with Ansys Explicit Dynamics. We have also took a look at the youtube playlist you have shared, but it's very theorics so we don't understand wich setting we need to adapte. 

But we still have some difficulties because the time of the calculation is estimated at 400h by ANSYS so it’s not normal I guess. 

We have applied your advice to not use strength and use velocity. That’s why in Initial condition we put 2780 mm/s and applied this velocity to the cube.

I will explain our model. If you have some advice to improve it or if we make mistakes, your help would be greatly appreciated. 

First, it’s the same model, we just have changed the mass of the cube to have the reel inertia.

For the mesh : 

Initial conditions : Velocity 

Analyse settings : 

Same fixed supports and same displacement.

 

We think we don't have all the keys to understand all the settings and which ones impact our model and the time of the calculation. 

 

Thank you in advance for all the answers you can give us. 

 

Best regards