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Flange pressure conating OF API standared FEA

Flange pressure conating OF API standared FEA

RE: Flange pressure conating OF API standared FEA

As long as your model settings match the real physics, then it is reasonable. The boundary conditions in your description sound good for me, is the flange pre-stressed?

https://welsim.com

RE: Flange pressure conating OF API standared FEA

(OP)
Thanks goeasyon for your reply

i miss understand what do you mean (pre stressed)

but i can say that the flange after we fabricate it we do a pressure test using water on it and bolt the two outlet with a blind flange

so the only load inside is the pressure of water which can reach 10000 psi

when i calculated the result is reasonable , its not reach 0.8 yield strength of the material

RE: Flange pressure conating OF API standared FEA

I think it's not reasonable. The holes usually don't touch the bolts, so the flange can expand. This would not be possible, when you constraint the bolt holes.

How about using a quarter model and having two symmetry boundary conditions. Then you only need an axial constraint.

RE: Flange pressure conating OF API standared FEA

engmohamedibnali you can go through below link, they have nicely explained the flange analysis.

https://pveng.com/flange-fea-post/

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