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Victor
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Comments
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CCX outputs shell elements as solids by default. You can turn this off in Mecway by adding a custom step contents containing *EL FILE,OUTPUT=2D
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17) I don't like the accumulating selection because I want Mecway to be familiar to people without experience in any particular other software. It should be more like Windows Explorer which clears the existing selection when you click on something. …
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Hi Sergio. Comments: 17) I'd like it to behave more like Windows which everyone is familiar with. 20) I agree it's quite hard to specify local refinements. Some kind of mouse picking would be great. 18) I agree previews are good. The other detail…
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Here's the result of some tests. - Computer: 16 GB RAM, USB 3 external hard disk drive, Intel Core i7 CPU - All models are static 3D with hex8 elements. Hex20 elements use more memory for the same number of nodes and similar mesh topology. - Larger…
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I see what you mean. I'll try to put together something. You're right that it's not linear -with larger models taking disproportionately more memory and time.
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Memory shouldn't be an issue for the graphics. I had 16GB though and that's also what I've solved 1,000,000 node models with. That's a good idea about a table, though it does depend on the connectivity of the mesh - a cube uses more memory than a s…
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I should have mentioned it in this thread before - for large meshes, version 4's graphics are much faster than previously. So the 2015 comments about 100,000 nodes or so may not be applicable anymore. I just tried 1,000,000 nodes and it's usable but…
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Thanks for the suggestions Sergio and VMH. Many of them are already on my list but this gives them a bit more priority. A few comments: 4) You can open a 2nd instance of Mecway to view intermediate .frd results without it stopping CCX. Ideally, I'd…
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That's a good point. I'll word it more clearly. Probably either "User defined ..." or "Display ...".
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Thanks for reporting this bug VMH. It's newly appeared in version 4. I can't think of a workaround except don't open big files directly from the icon. It also reveals a more longstanding bug - it crashes when you turn on the display of node or elem…
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Here's a likely fix from http://superuser.com/questions/947391/windows-10-font-blurry-125-scaling 1) Right-click on the program icon (not the shortcut) and choose properties. 2) Click the "Compatibility" tab. 3) Check the box labeled "Disable displ…
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You can prevent these cards appearing from the outline tree with CCX -> don't generate keyword. I'm not sure if there's a right way to export .inp files. Mecway doesn't have a way to define no analysis so if static analysis is defined, then the …
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To select nodes less than 10 degrees from the X-axis in the +X+Y quadrant, you could use the formula atan(y/x) - pi/180 * 10 < 0 Don't type the "< 0".
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Not in v4. Automatically selecting adjacent faces within an angle tolerance is something that's been on my list for a while though. In case you mean selecting nodes whose coordinates are within some range of angles in the global coordinate system, …
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Also there may have been an error with the tapered pipe element. It was internally converted to a straight pipe with the same average diameter, though I think it should have had the same average cross-sectional area instead.
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It's like prop_design said. This was a relatively low value feature. It tended to mislead people who expected it to be practical for modelling actual pipe networks but it had big shortcomings like: It ignores the Bernoulli principle which might be …
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Hello JL82 There's no direct way. A distributed moment isn't a uniquely defined problem so you will have to make some judgement about what's the best way to distribute the forces. Here's an example done by laying beam elements (Mesh tools -> Cr…
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I'll see about adding all the stress components. There are some internal limitations that make it a bit difficult though. I don't understand the problem with the layer naming. Is it because the same names L1, etc will be used on different lay-ups s…
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Hello johan If you have two elements sharing the same set of nodes, then they should behave as you'd expect, with the combined stiffness of both of them. Perhaps they were actually using different nodes, so only the soft elements deformed, leaving …
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I'd say so, yes. Though it's the simpler "one-way" type of multiphysics, like thermal stress, so it might be doable with software that isn't advertised as multiphysics.
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Not easily, no. You can use the DC current flow analysis type to obtain the rate of heat generation in the material, and you can use thermal analysis to find the temperature increase that causes, but Mecway doesn't yet have a practical way of transf…
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This is discretization error because of the mesh coarseness. There's a big change in the temperature gradient between the surface and the interior which can't be captured accurately in a single element thickness. So refine the mesh to reduce the err…
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This is a tricky one and other people have run into it too. I'm not sure how to solve it. "Total force" might suggest other meanings like the sum of all forces on the model so I'm not sure there. Perhaps it just comes down to doing a sanity check on…
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It's intended to be used starting with a .liml file, with .inp just as an interface to CCX. If you start with a .inp file, some features like *PLASTIC won't be read in and you would need to reconstruct them, like by adding them to CCX -> Custom m…
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What features of the shear stress plot concern you? It does seem to have the same general shape as the RAC-RAC curve in the pdf but the stress is scaled by some constant. I couldn't get the 70MPa you did and all my stresses were less than 0.1Mpa wit…
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Hi Jacinto Here's an example showing just a linear analysis of the shear stress at the interface. I rotated the model so that the XY stress component is aligned with the interface and you can read it off directly. I also rotated the X and Y displac…
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Hello Jacinto I'm not sure if you're trying to model the bond strength itself as the pdf say, or the rest of the material. If the rest of the material, then the problem is that the two parts are only connected together at the corners. To see this, …
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I don't see any major problems with that approach. The heat flux right on the boundary may have more error than with a single mesh, so you might end up needing two layers of elements for the film. From a quick test I did, that didn't seem to be an i…
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I've had a go with Wine on 32 bit Ubuntu and found this: - Without installing .Net 2.0 as whitequark suggested, the toolbars are partly hidden and most things don't work. So that's important. I used SP2 though. Not sure if that's worse than SP1. -…
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Probably not without more requests because it's a more difficult job than calling the mesher.
