V5 FEA- calc. failure load 1

[IsoGreg]

On the Structural Analysis in V5R11 I know how to apply a load and see the stresses. Is there a way to just define the place and type of load and allow Catia to calculate the max load until failure?

 

[KooKoo]

Not that I've come across.
Perhaps a script that runs the analysis until the calculated stresses exceed a certain value (Yield Strength, Von Mises, Principal Stress...)

 

[catiajim]

If you have the Product Engineering Optimizer license, you should be able to do this.

 

[buzibal]

CATIA V5 's solver, ELFINI is a linear solver. So if you have only one load, you can scale your results.

That means:

you computed a max stress of 200 N/mm2 for a load of 1000 N
then for a failure stress of 250 N/mm2 you have to apply X N

X = (1000x250)/200 = 1250 N

You can verify that by changing the load and re compute your analysis. The new computation only takes a couple of seconds if you didn't already deleted the CATAnalysisComputations.

Don't forget to use parabolical tets and to verify the precision of the computation (mesh size fine enough?)