Circular Flat Plate under stress calculations
Circular Flat Plate under stress calculations
(OP)
I have been asked to look into a basic study of circular flat plates under loading (pressure). I have calculated basic formula's for a circular plate under pressure loading and obtained results using Roark's Formula's for Stress and Strain 7th Edition. After the hand calculations were done i modelled the circular flat plate in Inventor 11.0 Professional then used the Stress Analysis feature in this obtained results with same loadings as hand calculations, in the results from AIP 11.0 compared to hand calculations there is a big difference, does anybody know why?
Kieran
Kieran





RE: Circular Flat Plate under stress calculations
Cheers
Greg Locock
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips.
RE: Circular Flat Plate under stress calculations
RE: Circular Flat Plate under stress calculations
RE: Circular Flat Plate under stress calculations
Inherently, there is no reason why Roark's and and FEA analysis should give significantly different results.
Roark's is not the easiest thing to use the first time you try it. If you've made a program or spreadsheet to do the cases in Roark, you might want to verify you did them correctly by posting a test run. If you purchased software, obviously they should have already been tested.
RE: Circular Flat Plate under stress calculations
RE: Circular Flat Plate under stress calculations
As Greg and others pointed out above, a bit more background on your particular problem will allow us to help out in more detail.
jt
RE: Circular Flat Plate under stress calculations
RE: Circular Flat Plate under stress calculations
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