Welcome back Akos
Did Z88 stop at the same deflection as CCX? At least that would seem to confirm it's something about the design, not an artifact of the solver.
By wrinkling, I meant this kind of effect for membranes in tension. Probably not rele…
I see. CCX doesn't have point rotational inertia so I think you'll need to build some structure and position the point masses so they give the required moments of inertia. I would use beam elements to hold them together, though it might be possible …
The line pressure load is only for 1D "faces" which are edges of beam and shell elements. You can use pressure or force instead and scale the value by the width or length of the strip respectively.
There isn't a function for thickness yet, sorry. That should come later as part of material properties.
Here's an example for surface area of element 1:
mw.surface_area(FaceId(1,5))
You could get FaceId using mw.selected_faces() if you've already…
Could you attach either the STEP files or the mesh too?
For a remote mass with CCX, you can use node-surface coupling and put a mass on the reference node.
I think you can do that by adding a Solution -> New formula which produces moment per length about some axis, such as
FL.vv * x
for the internal force.liml file I attached. Then integrate that in the same way to get total internal moment about …
* Create a face selection for the internal faces along the section cut, which has to be aligned with element boundaries.
* Solve
* Add Solution -> New force and moment -> force per length
* Use Solution -> Surface integral to integra…
No simple way. But some workarounds:
(A)
Save as a .inp file and you can see the node forces listed under the *CLOAD keyword where each line looks like this example:
19,2,90.02083333333
19 is the node number, 2 is the DOF number, and 90.02... is th…
The video encoding is usually very slow. Some suggestions:
* While it's recording, don't click on anything since that tends to stop the progress display updating, though it shouldn't affect the actual recording.
* Set a shorter cycle time which…
Though I don't know much about Mohr-Coloumb, it looks like you could use the Solution -> New formula feature in the solution in Mecway to achieve this. If you find the formula for M-C equivalent stress in terms of principal stresses and those two…
1) Yes, those wiggles look like a typical result of time steps or elements being too big.
2) What makes them seem high? Check for mesh convergence. That might go very slowly with linear elements. Quadratic ones are much better on thermal stress pro…
Nice clear comparison!
The odd stress is because it's averaging the stress for all elements using that node - including the other layer. So yea, you have to use element values like you did.
Some warnings only show the first instance they find. I k…
All I can think of is to save it as STL and find a tool to convert STL to DXF. Since they're both such popular formats, there must be various options. Here's how to do it with Blender from the top of Google https://www.instructables.com/id/Convert-S…
This turned out to be a tricky and serious problem but I'm not sure what to do about it yet.
There are two "versions" of CCX 2.16. An older one and a newer one. The differences are:
Older version:
* Released before 2019-11-30
* Automatically …
I see the same problem with the CCX 2.16 included with Mecway but not with CCX 2.16 from dhondt.de, nor CCX 2.15. So this could be a big bug. I'll reply on this thread when I have more progress. Thanks for bringing it up!
If the problem is wrong frequencies and random displacement errors on some nodes, that can be caused by using multithreaded CCX with the SPOOLES solver. You should use the single-threaded one for buckling or at least don't set the environment variab…
You're right - ccx/src/mkl. So many mistakes!
ccx/src is where build.sh that you run to compile it is. The final output files end up in ccx/src/x64/install.
1. Yes. /etc in the path is a mistake, sorry.
2. No, it's this line export MINGW_HOME=/c/msys64/mingw64
Only change it if /c/msys64/mingw64 isn't the correct location of mingw64 on your installation, such as if it's not on drive C:.
Thanks for bri…
Those warnings like
*WARNING in estimator: Patch not appropriate for patch recovery,
using average of sampling point values 37680
I guess are patches where the Zeinkiewicz-Zhu procedure doesn't work and it's falling b…
The manual for 13.0 is wrong about OMP_NUM_THREADS, sorry. It no longer sets that variable. Thanks for bringing this up.
I set the environment variable globally in Windows (Control Panel\All Control Panel Items\System -> Advanced system settings…
Since that thread JohnM referred to is quite complicated and a bit outdated, here's a summary of the CCX options in increasing order of power and difficulty:
1) SPOOLES. The slowest solver and what the default CCX included with Mecway uses.
2) MKL…
The load is only 4.0 kN on the shell because the value you specify in a force item is its total force, not force per node. If it's applied to multiple nodes, it gets distributed equally between them.
You can also save some effort manually specifyin…