While I'm far from an FEA guru, it looks like your restraint isn't working properly. It seems to me that the restraint is going in the same direction as the load. This will skew your results. That being said, it is giving you the info you need to determine if the force is going to deform the plate. If you know the strength of the material, you can correlate that to the deformation scale numbers.
Did that make sense?
Originally posted by: Jeff Mirisola While I'm farfrom an FEA guru, it looks like your restraint isn't workingproperly. It seems to me that the restraint is going in the samedirection as the load. This will skew your results. That beingsaid, it is giving you the info you need to determine if the forceis going to deform the plate. If you know the strength of thematerial, you can correlate that to the deformation scale numbers.Did that make sense?
Thanks for your reply. How would I correlate the deformation scalenumbers to the strength of the material? The yield strength ofthe stainless plate is about 30,000 psi.
Cosmos spits out the results in pressure because that is the correct unit for stress. Stress and displacement are the typical outputs of FEA. You have to compare the stress results obtained from the analysis with the yield strength of the material.
For the type of restraint cosmosexpress uses, it doesn't matter that the applied force is pointing towards the restraint. Cosmosexpress fixes a surface when it is specified as a restraint. This means it can't move in any direction.
As for the deformation scale. A deformation scale of 1 means you see the actual amount the part would deform if restrained and loaded as per the analysis. A deformation scale of 25 means you see 25 times the actual deformation. Cosmosexpress does this to exagerate the amount of deformation so you can see it clearly.
Hope some of this helps.
One more thought... you can look at a plot of the actual displaced (deformed) values. Trying to guess-timate displacement based on the Exxageration Scale isn't a reliable approach.