1d beam element modeling

Altair Forum User

I am trying to model the 1d beam element for a cylinder type geometry

but the results seem too big.

can somebody help me to check?

 

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Simon Križnik

Hi dajeet,

 

assuming the units are ton,mm,s,N,MPa it seems that the beams are too slender (0,5mm radius) for a cantilever with 125N total force with and a moment arm of 1000mm. 

So despite being made of stiff material (carbon fiber) this structure would deform excessively IMHO .

I suggest running size optimization to determine proper dimensions.

Altair Forum User

Hi, Ivan:

   thank you very much for the help.

sure, i will give a trial for size optimization and find the best diameter of the tube

i may need more help on this optimization side, i will keep you posted.

Altair Forum User

Ivan:

   I conducted a simple topology optimization analysis, and in the final iteration, there is element density distribution results.

then how could i export such element density results out for the other FEA analysis?

please see my fem file.

 

Unable to find an attachment - read this blog

Altair Forum User

any expert can help me?

 

thanks

 

Simon Križnik

please refer to https://connect.altair.com/CP/SA/training/self_paced/optimization/content/opt6/pdf/Ex4a.pdf