Victor

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Victor
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  • No sorry, not with the internal solver.
    in Mecway 29 Comment by Victor October 2025
  • @cwharpe yes, incompatible mode was already the default and now it's also unchangeable for new files but if you open an older file, it'll still be turned off to maintain the same legacy behavior. In future versions, I intend to remove the legacy for…
    in Mecway 29 Comment by Victor October 2025
  • ** INCOMPATIBLE KINEMATIC CONDITIONS IN MODEL can be serious because it sometimes means constraints are not being enforced. In this case, it's an interaction between the imposed X velocity of the moving plate and the Y and Z displacement constraints…
  • Right click a geometry (STEP file or Alibre part) and it's in the context menu there. CCX source is in that file in, for example, C:\Program Files\Mecway or wherever it was installed to.
    in Mecway 29 Comment by Victor October 2025
  • @German sorry. I've now deleted the spam.
  • @disla Yes, it's in ccx/ccx_win64_mkl_pardiso_source_2.22.zip in the installation directory.
    in Mecway 29 Comment by Victor October 2025
  • Got it. The Custom model definition is adding a blank line. OpenRadioss reads that blank line as a 3rd row of zeros for the function. It looks like a bug for Mecway to put a newline there so I'll fix that for the next version. For now, suppress or …
  • With OpenRadioss errors, you sometimes have to look in the _0000.out file for details. In this case, it says: LOAD CURVE ID . . . . . . . . . . . = 388 X Y 0.000000000000 0.00000000000…
  • It's not available for CCX, sorry. However, all it does is show the factor of safety in the solution. You can make that by hand using a formula, or get von Mises stress by adding it to the solution, or yield stress for plasticity by defining a plast…
  • I think that should be OK but be careful of any other loads or constraints applied to those beam 1D faces since many of them use surface area which is obtained from perimeter. For example, elastic support uses it to weight the springs, RBE3 uses it …
  • Sorry about the trouble with CCX. I hope you'll find OpenRadioss much more capable for that sort of thing. It does output shell stress and strain but Mecway currently doesn't have those in the GUI (some will be in version 29). You can include them …
  • I see. Set the element orientation of all the elements to something convenient, which depends a bit on the geometry or what orientation you think of as 0-degree. Then define a laminate material and enter layer properties with the bottom layer firs…
  • @ericwalsh55 Could you post the .liml file? It's hard to see what's happening with just the OpenRadioss input. Just a guess but the Reference Guide says /INTER/TYPE7 has small time step with small gap and the gap seems to be the default Gap_min whi…
  • It's the other way around. The tangential stiffness is in series with the friction, so it would ideally be infinite. That won't solve so you have to tolerate some large finite value. The lower it is, the more of the tangential motion will be dominat…
  • Just a follow-up. I wasn't able to reproduce the crash with the same version of Alibre Design. However version below 25 still won't be compatible with Mecway so I'll leave it as is. 25 seems to be the oldest version that works.
  • The arrows for each of the two loads are scaled independently. I know this can be misleading but I'm not sure how else to do it. If they were all scaled by the same factor, small loads would become invisible.
  • It looks like you picked the exec directory so it's looking for things below that. Use Find OpenRadioss root directory button again but pick the OpenRadioss directory instead of OpenRadioss\exec. That will reset the environment variables as well as …
  • I don't think it needs a web connection unless it needs to install the .Net Framework. I'm not sure about which version they need or what Windows 7 SP1 comes with but it's probably OK.
  • Are you sure \exec\ appears twice in the path? You may need to pick the directory above that in the Find OpenRadioss root directory button.
  • The last 32 bit version was 9.0, here: https://mecway.com/download/oldversions/mecway90_32bit.cab You may first need to install the last 32 bit version with an installer (7.0) for dependencies: https://mecway.com/download/oldversions/mecway70.msi
  • Can probably also be fixed by installing VC++ runtime described here: https://mecway.com/forum/discussion/comment/8501/#Comment_8501
  • For anyone else coming here, a customer was able to solve this error by installing Microsoft Visual C++ 2015–2022 Redistributable (x64) then rebooting or restarting Mecway.
  • I'd be careful putting any rotation constraints on a shell that isn't parallel to the surface, otherwise the CCX bug may overstiffen it. It think it's safer to exclude the intersections from the symmetry constraint and optionally manually add displa…
  • Do you mind if I also ask what field or culture uses these daN units? I've never seen that before.
  • Understood. For now, you can use the heaviside() function in a formula like an if statement: if x > 0: y elif x < 0: z would be: heaviside(x) * y + heaviside(-x) * z
  • You can use arbitrary large values, such as 1000 * G12. This approximates no transverse shear flexibility like a Kirchhoff thin plate.
  • You might need to exclude those edges from the symmetry. You should be able to at least put a displacement BC on them. The rotational BCs are what usually causes the the problem.
  • Oh, I see. At the intersections, I'm not sure what CCX does - maybe it'll tolerate any orientation or maybe almost none. I would just leave them whatever arbitrary orientation the symmetry constraint picks because they're discrete points so errors d…
  • Oh I see. No, the failure criterion is only for all of them, so I suppose it assumes they're all the same material. Good point.
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