pocketsObligatory not an engineer.
As part of my vanlife prep, I've built a calculator to handle the deflection calculations on long metal posts (because I want a hammock instead of a bed and I need to build a custom stand to fit my layout--let me know if you need/want more details).
I was originally looking at 40x40mm extruded aluminum for weight and deflection values I'm getting out of my calculator, but I just ran some numbers on unistrut and...
Can someone double-check what I'm seeing here?
I'm looking at an ~86-inch length of metal, with a point load of 400 lbs and clamped support (which I believe is the best "simple" calculation for my intention).
For 8020.net's 4040 (40mm) extruded aluminum, I'm getting 10.174mm of deflection.
For UnistrutOhio.com's P1000 (1-5/8" or 41.3mm), I'm getting 0.063mm of deflection.
Is that realistic or have I messed up my calculations somewhere?