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Victor
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That sounds OK. Can you attach the .liml file and explain what's wrong with the results? An important effect is that Mecway applies convection to both the inside and outside of the pipe. If you only want the outside, it might be better to use a no…
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Not sure if it has a name but these are the formulas it uses: σ = total stress tensor transformed so the x-axis is aligned with the SCL. t = thickness. t/2 1 / σ_membrane = - | σ dx …
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Thanks for the suggestions. 1. I agree it is very nice but low priority. You can use left/right click on the axis triad in the corner to get 6 orthogonal views. 2. Oneday I hope. 3. You can use the "pressure" load instead of force. If you …
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Probably not because of priorities. I suppose you can still do it using the FEA results by hand and/or with 3rd party calculators?
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Hello. Somebody here might be able to help, but this forum is mainly for the Mecway software. You'll probably have better luck on an ANSYS forum such as http://www.eng-tips.com/threadminder.cfm?pid=569
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Right click Solution in the outline tree, then choose New table or click the same icon at the far right of the toolbar.
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Take care with OUTPUT=2D on beams. It used to have a bug that caused the stresses to be wrong. Not sure if it still does.
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Yes, the reaction forces are already in the global coordinate system. The components aren't shown in the outline tree but they're in the table.
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They are Tensile Force, Shear Force V, Shear Force W. Use the Element values instead of the Node values. They're aligned with the element's coordinate system but I'm not sure of the sign convention off hand except that Tensile Force is positive towa…
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Hopefully. People have asked for this before but I can't promise since it's a low priority.
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Probably not. Instead, I might look at changing the ordering so 2 comes before 10.
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Possibly. What's the use for that? Because it's easier to position nodes than enter vector components, or to align it with the mesh?
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Thanks. This is mainly because the surface isn't very cylindrical - the element faces are flat. I repositioned the nodes to be on a cylinder and it came out with a much more uniform displacement around the edge. If you need radial displacement on …
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This is a design change that comes with the improvement of the Refine x2 tool which now properly creates transition elements between the refined and unrefined regions. A side effect is that beams get this "transition" mesh too so that their refineme…
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Do you mind uploading the file(s) for that cylinder, Andrea?
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Frictionless support now has a displacement value you can specify, which will be the radial displacement if you use it on a cylindrical surface.
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I see. Yes, it can create ugly transformations like rectangular when cylindrical feels more natural but hopefully you don't look at them :P My intention with the design of it is that you should never have to think about what coordinate system the no…
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Ah, reaction forces are something that needs a way to see the results in an appropriate coordinate system. That would be a postprocessing option though. For a sliding surface in any orientation, you can use frictionless support. If it needs to onl…
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Thanks for the comments. I don't intend to ever include node coordinate transformation as a visible feature in Mecway. It's not a physically real concept and there should always be an more conceptually simple way of achieving the same result. Mecw…
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You can use circular tubes. CCX expands them to square sections, presumably with a special stiffness matrix.
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This is a tricky one. The maximum setting is sometimes very slow. If it remembers the setting then people will turn it up once on a small model where it doesn't make a difference then suffer the slowness later on with a bigger model and it won't be …
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Here it is with the disconnected edges joined by bonded contact. TIE doesn't work here. I think it's because the webs intersect the flanges. You might have to separate them by half the material thickness to use TIE.
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That's curious about the mesher creating mismatched edges. Perhaps because of 3 surfaces intersecting at one edge which is not something it's supposed to handle. Bonded contact doesn't typically add much to the solution time unless the contact r…
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While you have to use different components for different thicknesses, they can still be connected by shared nodes without needing any kind of contact or tie. You can split one component into two by selecting the required elements and making a new co…
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Node selections are currently not carried through with the CCX solver. That's because it's more complicated than elements and faces when CCX generates extra nodes on shells and beams. The closest way would be to use a face or element instead, but …
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Just a note in case of overlooking the functionality - You can apply distributed loads to shell edges instead of using node forces like this. First select the nodes, then switch to "Select faces" mode and the edges will be selected, even though they…
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Hello. Please see this thread for instructions: http://mecway.com/forum/discussion/comment/1703/
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Andrea, what's holding me up is how to do it appropriately. If there's just an extra option for every element to use reduced integration then it will be an obstacle for more people than it helps. Whenever something doesn't work, it'll be tempting to…
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Thanks Andrea. At some point, I'll do a bunch of experiments and research into this. From this example, it looks like an optimization that's not very important since you could just refine the mesh a little more or use quadratic elements in bending d…
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Here's the example from the book with results that match all the digits shown in the book for strain and displacement. You may already know this but a key difference is that if you apply opposing forces like the book shows, they have to be exactly…
