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Victor
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You might have attached the wrong image. Gravity should be OK though. You also have to add the stress stiffening under Loads & Constraints which triggers a *STATIC step to obtain stress which is used for a subsequent *FREQUENCY step. Custom st…
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Some parts intersect each other which is probably why it's not meshing. To see where, make a surface mesh (which works), and use the cutting plane slider to look inside. No doubt, converting it to a single solid body in CAD as Andreas suggested will…
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Thanks for pointing that out. It won't work for any CCX solutions. I'll disable that in the next version.
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This is a known bug that will be fixed in the next version. It occurs if you use the mouse to pan in a mesh view, then change to geometry view and right click on something.
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The strain in Mecway 8 is the taken from TOSTRAIN from CCX which according to the CCX manual is: "total Lagrangian strain for (hyper)elastic materials and incremental plasticity and the total Eulerian strain for deformation plasticity" Except Mecw…
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Here are several ways: * Sliders as you said. * Right click the slider and choose Max/min and type in the values. * Select some nodes, faces, or elements. Right click one and choose Fit contour plot max/min to selection. This only works for s…
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The fluid analysis is mainly there for legacy reasons. It's has quite limited features and I don't intend to enhance it much so I don't want to advertise it and have people accidentally choose Mecway for fluid analysis.
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Thanks for the suggestions, Kaspers. 1,2,3 are tricky to design because they could make things worse as well as better. I'll keep what you say in mind to combine with what other people want. 4. I hope so soon. Also hopefully distributing coupling.…
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It's like you suspect. The first 3 inputs are X, Y, Z components of the direction vector and the 4th "displacement" input is the "magnitude" of the displacement. See attached picture. I say magnitude in quotes because it's a signed value. The other…
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Interesting question that puzzled me a while ago too. The thickness to size ratio refers to the size of the overall part, not the element. So refining a shell mesh doesn't change that ratio. Be aware though, that the usefulness of shells is usually…
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I found a compiled multi-threaded CCX 2.11 (ccx_MT.exe) but it does have some problems which is why it's not included in Mecway. I don't quite remember but maybe frequency analysis results are sometimes wrong? I don't know how to compile it so it wo…
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This is rigid body motion because it's not constrained. The solver tries to find any static solution but here there are many possible solutions for different positions and orientations and it just picks one randomly, which is not unreasonable becaus…
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Thanks Marco. I can reproduce it now. It only happens with the gradient contour plot option.
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To be honest, I don't know much about it besides the formula used by CCX. Here is a simple example whose solution matches that formula. You do have to define E, but that's on the Mechanical tab of the material properties window.
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Stefanos: Yes. I'll contact you by email in a day or two. Marco: Thanks for the bug report. I'm not able to reproduce it so could you please give more specific steps and/or take a full screenshot showing model and any selections? When I do it, it s…
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In version 7, node external force (including reaction force) x,y,z components are called FORC_F1, FORC_F2, FORC_F3 respectively and should automatically appear in the solution. The units are always Newtons. In version 8, they're called external for…
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Thanks to your request previously, in version 8, you can show cylindrical coordinates by entering the transformation formula in the postprocessor. There's an example for radial displacement in the manual.
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Yes. Just beware that the setting clears itself when you close the program. In v8, it's under Loads & Constraints and is persistent.
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Barrti, just a comment on the 8-node hex's. Are you using reduced integration as Sergio suggested somewhere way back? He found it didn't help with hex20 but it's particularly important with hex8. Without that, 2 layers is probably too stiff. That mi…
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I think you're probably onto it with the knots. I don't understand them well enough to say though. Generally, all the 6-dof elements in CCX are a bit flimsy and it sometimes fails in surprising ways. I've seen the geometry of connections between ele…
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I'm not sure why this happened but adding a dummy element with zero density to the node with the moment makes it solve. I also turned on automatic time stepping which helps it get further into the solution but it only rotates about 45 degrees.
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OK German. I'll make those changes unless I run into big obstacles. Thanks again for your very thorough and competent work on the manuals.
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I'll look again later but you might need to use a force couple on an additional element instead. Force on the wheel works.
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I agree that showing other types of selection in the list is inconvenient but it's the same behavior as all the loads and constraints that only support one or two types of selection, so that's a fix for another day. Using component names is a bit t…
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v7 had CCX 2.11 too. I haven't tried to compile 2.12 or 2.13 yet.
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Hi Sergio, thanks for the detailed comments. 1) The "displacement" tree node shows arrows but the "magnitude" one under it shows the usual contour plot. This is something I'm worried about because it's a bit harder to reach for the common case. Do …
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All those settings look pretty good. Two suggestions: 1) Use a prescribed displacement instead of a force. It looks like the strip has reached yield across the whole cross-section so maybe it's collapsing and can no longer support any more force fr…
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Update: beta 2 mecway.com/download/mecway80beta2.msi Bugfixes Geometry didn't display or mesh. Samples and Tutorials folders weren't shown in File->Open Incorrect localized number format when saving files. Improved error message for out of memo…
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Thanks for reporting that bug, marco. I'll release a fix in a couple of days.
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Version 7 doesn't do that, sorry. You'd have to solve the configurations one at a time and copy each csv file away before solving the next one.
