Element utilization

Replies to This Discussion

Permalink Reply by Karamba3D on November 13, 2017 at 12:42pm

Hi Raphael,

at the moment (Karamba 1.2.2) this is not possible in Karamba. This necessitates a physically nonlinear simulation.

A workaround could be to use the 'Tension/Compression Eliminator'-component (see manual). However this component does not always converge.

Best,

Clemens

Permalink Reply by RaphaelKilsdonk on November 14, 2017 at 1:59am

Hi Clemens,

Thanks alot! That seems to do the job.

Kind regards,

Raphaël

Permalink Reply by RaphaelKilsdonk on November 21, 2017 at 6:11am

Hi Clemens,

I have a followup question. It seems the 'Tension/Compression Eliminator' only works on beam elements and not springs. Is this true? I need to model springs that only compress. Is this possible?

Without 'Tension/Compression Eliminator':

With 'Tension/Compression Eliminator':

The component has removed the springs with tension but the resulting forces are not affected.

Kind regards,

Raphaël

Permalink Reply by RaphaelKilsdonk on November 21, 2017 at 7:09am

I found a workaround by adding small elements between the springs and the beam:

The 'Tension/Compression Eliminator' component now removes those elements and with that the springs.

Permalink Reply by Karamba3D on November 22, 2017 at 12:28pm

Dear Raphael,

thank you for the hint regarding the spring elements. Maybe this is a bug. I will check it.

Best,

Clemens