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Does any body know the equation for the buckling modes for a solid ring under external pressure. inplane and outplane modes? related forum: http://www.eng-tips.com/viewthread.cfm?qid=287836&page=1

How to constrain a closed ring beam element for 90, 180 degree symmetry cases under external pressure. I need help to define the following simple constrain beam case I got a “circular closed ring” with a square profile 25x25 mm and an mean radius of 518 mm, material steel, the ring is has a...

How to determine if vortex shedding will occur?. This question is more from the theory point of view rather form a CFD simulation point of view. With given object dimensions and speed moving inside a fluid. How do I decide if vortex shedding will occur knowing a strouhal number?. Does it mean...

Pro/mechanica and plastic like materials. I have done some FEA analysis in metal parts using promechanica lineal analysis with WF3, with WF4 the hyperplasic model were introduced (so elastomers material like rubber) can be analysed, and now in WF5 elastoplastc material were introduced, both...

I would like to know what sort of boundary conditions do I need to place in a “unitary cell” (a symmetric model of a perforated sheet metal). I would like to model the unitary cell as a shell, but I am not clear with the boundary conditions do I need to place on the symmetry edges. The...

This can be the more basic and stupid question for any FEA analyst but for a chemical engineer is not so clear. In a typical bench mark of a hole in a plate, the stress concentration factor is 3, but one I “re-mesh” and ” re-mesh” (trying to have the more “dense” fine mesh in the interest...

Help.. I have perform a pressure vessel analysis using FEA pro/mechanical (3D solid p-elements, tetra) under pro/e as a cad modeller, I have obtained some results of the max shear stress in my model (because my vessel is quite thick (r/t = 8) and also it has got some unusual geometry changes...

Can I use FEA under asme Vlll div1?.. Can I perform one design of a pressure vessel under div 1 but using FEA?....why no?...(in case).... please send your replay to: matteo_1234@hotmail.com Thanks.

main question..????.. There is not way to change a 100% radiographic examination in asme div2 for a steel casting?....that mean... for any casting a 100% Radiographic apply?.... how to desing a non standard pressure vessel under asme section Vlll div 1?, using FEA?..