I don't have the file anymore. But it should fail to converge when it buckles and only show the solution up to that point. If automatic time stepping is turned on, the steps might get pretty big but I think it should be on to get the greatest time r…
This is pretty weird. It looks like having all 3 of:
* dynamic response
* bilinear plastic material
* contact
fails that way.
It works with the Ramberg-Osgood plastic material model though. So if you calculate those coefficients, there's …
Also use CCX instead of the internal solver. It doesn't have compression-only support but you can make a big high-stiffness element to act as "ground" and use contact on it, which is often much faster than compression-only support.
As well as the thickness difference:
A ) Y and X BCs one two edges are missing in the shell model.
B ) All BCs on the solid model are on the edge of the plate's face, not the midplane like in the shell model.
Correcting those brings both models' …
Not sure what you mean by W7 and W10. Also, the file doesn't have nonlinear materials ?
But I got a solution by doing this:
A ) Increased contact stiffness per unit area to 10000 GPa/m (~ E/thickness).
B ) Increased time period to 0.05 s. It won'…
Mecway only has a single "face" along the length of a beam, and it includes the whole surface as it appears when you select it. Pressure load on beams uses that as the surface area. So for converting line pressure to X,Y,Z "pressure", divide by the …
It sounds like you selected elements instead of faces. Ensure Edit -> Select faces is turned on first. Creating the new component may have changed it to Select elements mode.
Having the model too is useful in case of saving it over the original file. Is the problem that it makes it slower to get to the solution when you open it?
It's strange that Mecway tries to write the results before it's finished. I don't know how t…
That's a good point prop_design. Though something that got me suspicious - the benchmarks are all on circuit simulation problems. It's especially suspect considering the huge difference between the circuit 1 and circuit 2 graphs. With that much vari…
Thanks very much JohnM and prop_design for revealing this! This is amazing news and I'll include it with the next version of Mecway if the licenses permit, or at least try to ease the installation if they don't.
Mine says 2.9 GB (out of 16 GB) with not much else open. I wouldn't make any decisions based on these numbers though because how memory gets used is so complicated.
Yes, I saw the memory use remain high after doing a File -> New, which would be about the same as opening a small file. But high memory use is perfectly OK as long as it doesn't cause any problems.
I left it in that high-memory, no-model state a…
Sergio - the solve command line parameter doesn't save the solution by default which I realize is kind of strange, but if you set Write solution to liml file in Analysis settings -> Output files, then it will. That also allows you to keep the mod…
This is tricky to reproduce. I tried reloading the same large file repeatedly and the physical memory use reported by task manager for Mecway was:
33 MB no file
2325 MB opened once
3695 MB opened twice
3460 MB ...
4731 MB
3801 MB
3020 MB
2997 MB Ne…
Good suggestion. I'll try to get that in. For now, the longer way is to click the component name to select all its elements (or ctrl-A), then with the field variable selected, right click an element and choose Fit contour plot max/min to selection.
Thanks both of you for the suggestion about some kind of reusable meshing parameters.
There's already slightly smoother material library under Labs -> Import from library. It enables buttons for Assign material from library and Save to library.
The one at http://www.dhondt.de/ under "download by the following files ." is multithreaded. But beware that it still has the old bugs with eigenvalue problems and a large number of threads which has been attributed to SPOOLES.
I think there are two types of problem in this file:
1) 6 badly shaped elements. You can see these if you set offset to 0 and solve.
2) The other 72-6=66 well shaped elements that only cause errors when the offset is specified. I don't understand …
Version 12 is now on the download page and there have been no changes since the first post in this thread.
Extra thanks to Germán Bresciano who has written and maintained up to date Spanish language manual and tutorials documents available in the l…