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Victor
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Good to see it's just about right! NLGEOM is already turned with the "Nonlinear Static 3D" analysis type setting in Mecway. Contacts penetrating each other is also because the "Slope of pressure-overclosure curve K" on the contact is too low. It sho…
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OK. Sorry for all the hoops you've had to jump through. The scaling will be more uniform in the next version and it will probably double the size of graphics items above 150% but not at 150%. I see from your feedback that that's too big of a jump.
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The error messages on red items in the outline tree are for Mecway's internal solver, so you often have to ignore them for CCX. Now I somehow can't get that to converge anymore so maybe I accidentally changed something else. I suspect the main prob…
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VMH, I had a look in the code and there's no use of convergence criteria for generating the .inp file. Perhaps you got different results when it didn't converge, where it could potentially give a very different result on each run due to numerical er…
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There are several problems. I'm not sure which one(s) are really important but here's what I changed: Changed the top roller's contact faces from the top to the bottom Changed Glass_Epoxy's shear modulus units from Pa to GPa Suppressed one of the…
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That's right. CCX has a *CONTROLS keyword for convergence parameters. I've never used it and I don't think you should unless you have a very special type of problem. If something's not converging, then tweaking the tolerance often just covers over t…
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The convergence are currently ignored for output to CCX. You would need to specify that as custom step contents using CCX keywords.
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That sounds like a likely reason for not converging. Good to hear you got it working. Yes, use pressure for a follower load. Automatic time stepping is generally a good idea. To turn it on: 1) Right click CCX in the outline tree and click "don'…
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This is a problem. Thanks for pointing it out. You would have to work around it by setting the analysis type as Static 3D to allow entering the data then change to nonlinear for solving. I know this is going to be quite inconvenient sorry.
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That's how it is in version 5. These items are only getting scaled by multiples of 100%, so they don't scale smoothly with the DPI setting. In previous versions, they didn't scale at all. Now they jump up to double size with 150-250% DPI, triple siz…
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Hello Dave 1. It looks OK to me. I would also try a force parallel to the axis (bolt direction?) in case normal pressure causes artificial radial loading which, in real life, might be opposed by friction between the outer rings and the rings in the…
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CCX doesn't seem to use the rotational DOFs in its constraint equations (*EQUATION) so this type of connection doesn't work correctly though it's OK with Mecway's built in solver. I've constrained it so only translational DOFs are relevant and it p…
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The resolution setting in Mecway is related to the resolution of the textures used for displaying the contour plots, not the nodal averaging, which is always on for CCX as Sergio said. The setting is just there to tweak performance because higher re…
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It should still show deformation after you release the load, so maybe it's not really being loaded all the way or somehow losing the plastic material data. Feel free to attach the liml file to the forum here.
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In version 5, PEEQ ("Equivalent plastic strain" in Mecway) comes through automatically if one of the plastic material types is set. For hand-made material definitions though, you'd have to do as Sergio said.
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Just a follow-up. Version 5 fixes these problems on Wine so it should be fully usable now: - NotImplementedException when mousing over a graph - Recognizing product keys - CCX (2.8p2 and probably others) works correctly
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Your method is basically right except for the problem you pointed out - since the angle only rotates about the U axis, it won't change the direction of the U axis itself. It's probably clearer to explicitly set the U axis as components (1,1,0) to ge…
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To model localized crushing at the supports, you would need contact, which you can do by adding the CalculiX solver together with meshes of the cylinders. To model the changing position and direction of the supports as the deformed shape of the bea…
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That's a fantastic example Sergio. Thanks a lot for working it and posting it.
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The built in Netgen mesher is 32 bit. There's no hard upper limit on the number of nodes. The 1 million listed on the website is just what I've tested Mecway's internal solver with. CCX can probably solver larger models.
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It doesn't have automatic shape optimization, so you would need to do that iteratively. 3-4 part assemblies are perfectly OK. I don't have any examples that specific sorry but there are examples of assemblies and contact in the manual.
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Hello drssp. It doesn't currently have a materials database though this is a commonly requested feature so hopefully in a future version. For now, you would have to get material data from elsewhere, such as matweb.com . For large deformations, you …
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It's not available with the internal solver. You can do it using CalculiX by manually entering the cards for a material, including *CONDUCTIVITY which allows orthotropic temperature dependent conductivities. Your idea of scaling the model in the Z…
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Updated to version 5 beta 2: http://mecway.com/download/app/mecway50beta2.msi - Improved scaling on high resolution (high DPI) displays. - Components display in solution view doesn't show a color key - Automatic component colors aren't chosen to b…
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Thanks for the suggestion. I'll add it to the list for future versions.
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That's amazing news!
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That's no good. Could you please tell me the DPI settings of your monitors ( http://www.tenforums.com/tutorials/5990-dpi-scaling-level-displays-change-windows-10-a.html ) and if the problem depends on which monitor Mecway starts on, and which one it…
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Thanks for trying that. The main problem is D1 is too big. In this case it should be 3e-9 m^2/N (=1/(332MPa) ). I'll try to clarify what that means in the program and perhaps include 1/MPa because different people use different definitions for thei…
