Curved plate under gravity
Curved plate under gravity
(OP)
If an initially sphereically curved rectangular plate is placed on a solid flat table, is it simple to determine to what level gravity would be able to push the plate flat?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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Curved plate under gravity
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RE: Curved plate under gravity
Carl Bauer
www.bauerconsultbotswana.com
RE: Curved plate under gravity
RE: Curved plate under gravity
f=0.025pa4/B
where the symbols are those commonly used in plate analysis.
If you need to be sure that the plate is really flat I would suggest a test, guessing that you'll need 5 to 10 times the figure calculated as above.
prex
motori@xcalcsREMOVE.com
http://www.xcalcs.com
Online tools for structural design
RE: Curved plate under gravity
The deflections for such setup with the error assumed in the modelization can ge gained through modeling with curved shell elements, that will have aberrations at the central support (contact stress and FEM derived).
Then, initial residual stresses may have a say.
And the deflections will be quadrant symmetrical, but the plate very likely won't get flat nor all its points at level zero at the same time. A symmetrical contour will.