Hej,

I actually have a problem. I wanted to calculate if model is stable but now I don't have buckling module in Solid Works. I used to use Robot Analysis for structural calculations but is there any chance to calculate it in Solid Works Premium?

I know that I can use Euler Equation and it returns quite reasonable results, but maybe, basing on your experience there is a way to calculate it with only Solid Works Premium. I attach screen of model below.

Thanks !

Nice simplified test assembly.

A SW buckling study says that with a 10 kN vertical load failure will occur at a load factor of 22. That scales the sideways force too. I got the 'large displacement' study to run at 160 kN (with solver restart), but not at 180 kN. I noticed one of the C channels on top is twisting a lot. I split that surface and removed the load from the center half of the span. This does make the static 'large displacement' study run for higher loads. I'd assume you're more worried about column buckling than C channel twisting. Of course this leads to unequal column loading, but oh well. The buckling study now says load factor of 24.

With the 85 kN load I see the posts are only displaced sideways by 25 mm, which doesn't seem like that much compared to the 80 mm post size, and considering top and bottom are fairly fixed against rotation. What do hand calcs show for the strength of a single column under similar loading?

For the static 'large displacement' study the OUT file says 3 iterations at 10 kN load, 7 iterations at 85 kN load.