1) empty box, 2) box + cross bracing, 3) box + X bracing, 4) box + cross bracing with holes to reduce weight. On the forth corner I applied a vertical load (50 lbs). Should I use a constraint in Simulation instead? Which one?įor a torsion simulation, I fixed one corner vertex (X, Y, Z), the opposite corner vertex (Y), and the third corner vertex (X, Y).
This gave errors in Simulation, so I used the Combine function. The materials for plywood aren't defined so I'm using another wood material, MDF, which should work as I'm using Simulation as a comparison/design optimization.įirst question is how to deal with multibody parts in simulation. I've modeled a few crude concepts to get a feel for what design and pattern for the internal webbing would give the best stiffness to avoid twisting a top that wasn't flat. Top and bottom plywood with a number of internal webs for stiffness.
I've settled on a torsion box style construction. In the design phase for building a new wooden workbench for my shop.
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