Learning Forum

[roberto]

Hello,

I am trying a simple model of beams, and a damping effect is appearing although no visable card including damping is used. The beam is modelled wiht MAT_SPOTWELD.

This are the forces in the SPC at the start of the beam:

 

How is the force reduced? Is due to artificial damping due to numerical reasons?

[ErKo]

 

Hi

Try mat01/elastic and elform=1 in beam section (no failure mat100card also) and see if that also gives this behav.
(so just simple linear elastic beam)
All the best

Erko

 

[ErKo]

 

 

 

 

 

 

Hi

I have verified this – must be some damping applied in the backgorund to this material/elform=9. I agree it is strange I must say.

We will look into this –  thanks for bringing it up. (hope to have some feedback next week perhaps).

Also feel free to log a support ticket and so we can track the progress of this strange behaviour/issue perhaps – mention this post and me and I will take the ticket and help you.


All the best
Erko

 

 

 

 

 

 

[ErKo]

 

Hi Roberto 

As we saw I can confirm that there is damping applied in the backgorund (can not be changed) to matspotweld.

However This high frequency damping should not cause any problems.

All the best

 

Erik

 

[roberto]

Hello!

Thanks a lot! Really appreciate the effort! Indeed, we were not expecting the damping but it should not be a problem for us.

Again, thanks for the good work!

 

Best regards,

Roberto

[ErKo]

Thank you for your kind words 

Wish you all the best