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Sergio
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Comments
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Changing the solver to CCX and no lineal analysis, displacement are very similar:
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Switch to 2nd order elements for the 3D elements and the variation will be less. Maybe with more elements you will be closer. Also the deformation is a little bit high, maybe you should do a geometric no lineal analysis.
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Without seeing the model, I would use guides (modelded and include contact) and move away before main loading.
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Would be interesting to see the problem, can you share it?
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Are you tring to remove an impossed displacement? Can you apply a reverse displacement in place?
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I was a big fan of multistep analysis (as I came from Abaqus), but after a lot of experiments (writing manually cards for the second, third.. steps) I have found that I can make all of my multistep simulations in one step using an appropiate Time Pe…
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As far as I remember you need to use de *NODE PRINT card and request output values for RF (reactions forces and moments probably) on the reference node, that you must put in a node set before to call it on the *NODE PRINT card. This will generate an…
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That's great, I have to make time to test it.
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There are some hacks to use Mecway as preprocessor for OpenFoam, but the postprocessing must be done in Paraview. Check out this Youtube channel with several tutorials and material. https://www.youtube.com/@simcommons8090/videos I also will find u…
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Hi, you must go to Menu/Solution/Find Max Min. If you don´t have nodes selected will be the global max/min, in case you made a selection of nodes, then will be related to those nodes. Regards
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This will be a new tool, or a modification of the actual stress linearization feature?
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I found out that if I set the minimun size of the mesh to the minumun local refinement, then it acts as in Salome
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Hi Victor could you add in the list for future improvements the meshing refinement with Netgen? Very often we cannot force some refinement on surfaces with Mecway/Netgen, that can be done on Salome/Netgen easily. Check out this example, in the small…
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Hi Victor, I just tried the beta of the version 20, and the Geometry view now looks really nice, the new colors for parts and edges, and the hided parts representation is also very good! Some ideas: In the Analysis settings, can be added a user t…
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@kuhl , normally I keep the initial 2d mesh as a backup, so then I can extrude to any thickness. All the BC must be re-applied
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@kuhl , for sheet metal part, our procedure was model in CAD as a surface model, and we model the side of the part that is in contact with another one. So then we mesh it with 2d elements, and we can choose after in the extrusion (we also use hexas,…
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I have used sucesfully Prepomax for the determination of Mooney Rivling coefficients from a rubber part, based on compression test of the part, not from standard samples.
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I don´t have much experience with Mecway´s internal converter, I use Calmed8 instead, that convert to only one .rmed result file that can be opened with Paraview. I have converted several no lineal results with about 50 increments (up to 20 GB) to o…
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You could reduce the number of saved intermediate increments if is a no lineal simulation (maybe leaving only the last one), and also reduce the number of field variables to the one that you really need to postprocess. A last resource would be trans…
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Thanks @Victor !
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Hi Victor, would be possible to add the unity cm^4 for the beam moments definitions? Same for torsional and area, I have seen lot of standard profiles tables with cm as unity. Regards
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@Mishal We mesh our parts with mapped quad elements, and then extrude to get three hexa elements in thickness. If the metal/plastic part was just modeled to represent the contact, we use only one element.
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Using shells and beams requires more planning, preparation of the CAD and experience than just pressing a magic button that create a nice (but incorrect) tet mesh. Users tend to be lazy :-) In the past have worked a lot with engine mounts, doing FE…
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I was working in some necking problem in the past, and after some research I found that is a common practice to reduce a little (very small) the area in the place that is supposed to neck the test sample. Take a look at the M.Kraska example https:/…
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Stp visualization with visible edges is very nice, and the compression only support are both welcome, thanks for this update Victor! Could you add the posibility to change colors to stp parts also (maybe something like that the meshes, that are of d…
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@Sebastianmaklary , I just download the first example (Plane_mesh.inp) from the BESO site, and when I try to run beso_main.py, it's get stuck with this text: Do you know what could be wrong? I have edited beso_conf.py (only changed the path to cc…
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In the old days when I did a few project of topologic optimization, what I did was divide the geometry and separate the volumes that I want to keep without optimization. This could be done in Salome, and then meshing the resulting parts with conform…
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Try to reduce a lot the number of elements/nodes, sometimes when CCX gets out of memory can´t save the results.
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If BESO is a python script, could be run directly from Mecway as a user script?
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The same for me, now it works ok. Thanks!
