I Have a little test i am trying to reproduce in Fusion to find our if the fusion results will be correct on a much larger scale part.
Its a flat sheet of plastic (2mm abs) layinig on a frame. I need to find out the sag/droop between the rails of the frame. In my real world test it sags a distance of 22mm in the middle. In Fusion its only sagging 3mm.
Where are i going wrong?
File attached for anyone to give it a try.
Two things I would mention.
1. The way you have the plastic sheet constrained may be limiting the droop. Is the sheet glued or otherwise adhered to the frame or is it just resting? If its just resting, you should be using contacts between the two so that the plastic can slide inwards.
2. Mesh resolution can cause havoc in situations like this. A finer resolution will get you to the right result. I think the slider for relative element size may not be granular enough to zero-in directly, but the absolute scale options might get you there.
Here I took your model and ran it with contacts (the plastic is unconstrained) and with a fairly fine mesh. The result is OVER what your experimental value is.
