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Sergio
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Comments
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In case of using CCX solver, check the generated input file and look for this line. N is the number of sectors that makes the whole goemetry, and NGRAPH is the quantity that will be saved on the results. For having a complete representation both num…
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If you work with the CCX solver there are three system variables that will let use n quantity of cores of your pc: • CCX_NPROC_STIFFNESS to create the element stiffness matrices in parallel • CCX_NPROC EQUATION_SOLVER to solve the system of equation…
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Export as .unv
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But do you have well defined (a partition on the faces) each thickness region? In that case can be done also en Salome creating groups of elements by face and then in Mecway assigning a different material/thikness to each group (previously you need …
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You can import all the steps in Salome and make a union (partition on Salome) of the steps to generate then a conformal mesh.
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Thanks for the support. I have removed the horizontal constrain to be more like the real situation, after that both models shows about the same deflection (20mm). For the lineal model, internal solver gives the same result, didn't try yet with the n…
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Probably if you solve directly with CCX you can use CGX with batch commands to postprocess and get the stress/strain plots, results and then you can link to your report generator program.
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I don't have Mecway on this PC installed, but you need to define first the node set and after use the custom CCX feature on the model tree to enter the card exactly as I write (if the orientation of the model agree with the picture).
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Hi, have made some stents in the past. You can use the CCX card *TRANSFORM to relate the inner nodes of the stent to a cilindrical coordinate system: *TRANSFORM,NSET=NSET_INNER,TYPE=C 0.,0.,0.,0.,0.,1. Also, your model is simetric, so you can use…
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Hi, have you tried with CalculiX solver and *CYCLIC SYMMETRY MODEL card? I have tested for static analysis and works very well, it allow you to create a very good model (fine mesh) of one sector and then compute the results for the whole part (even …
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I have imported the dxf over an empty new file in Mecway, and the error appears. If I try open in place of import, I can import it and see in the tree that there are x elements (the number of lines of the dxf), but nothing in the model display area …
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Have checked with other files (solid steps), and I was able to import the 3d model, but is not visible. After meshing the same error appear, so probably is a problem with this particular Windows installation. One interesting thing that I found was …
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Have imported the lines in Salome (as igs), then mesh as 1D element and export as UNV and import in Mecway with the same error
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Have uninstall/reinstall the new version and still cannot open dxf, the error is the same
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Thanks for checking, I will try to re-install, as I have the same version as you. A very weird thing because last week the dxf importing was working ok on this machine. Regards
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You could solve the problem as no lineal with lineal material properties. "If you want to control the sequence in which loads are applied or ramp them up gradually, check the Quasi-static box and specify the Time period and Time step size under Ana…
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If you upload the steps incuded in the model I could give a look later. Take a look on the forum, there is another thread with something very similar.
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Jola, do first a 2d quad dominant mesh on all the geometries, and then just extrude the faces that you need to create the hexas/wedges. Then you can delete all the rest 2d elements
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Hi Jolan, welcome on board! One of the mantra of my first FEA mentor (a venerable French guy also) was... "Sergio, remove all the unnecessary areas of the model" and he was very right! Removing the features and volumes that will not help you on the …
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You can separate the faces on your CAD leaving only the cross section and just export this faces, then mesh with cuads and revolve it and create the holes using the specific tool. For meshing with coincident nodes you can mesh it on Salome, or Gmsh…
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One thing that I do in some cases is reduce the quatity of datasets that CCX saves, so by example 1 every 2, or 1 evry 5 in some cases or less. This reduce the global size of the result file. Use the FREQUENCY parameter on the NODE FILE card: "FRE…
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Nice model! Can you post an animation of the results? Regards
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I would reorient the geometry in the CAD program to the real position before meshing in order to avoid such problem.
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If you will use hyperelastic materials then will be a no lineal analysis, with several (lots) increments. Pay attention to create the more efficient mesh in order to have a model that can be solved in a short time. With that you can make several tri…
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To replace the TIE you can try to mesh with coincident nodes in Salome, but for that you need the geometry in stp format.
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Hi Swaraj, welcome then! I'm working on a similar project. Have sense to include in the model such a soft tissue? I meant, jaw bone will be several orders of magnitud stiffer than the PDL. Check this article about Jacobian error, maybe you could tr…
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You can insert those cards directly using the Mecway inteface (custom CCX data) and see the results on Mecway directly. I don´t have experience with results with the coordinated system changed, I use the TRANSFORM to apply cilindrical bondary condit…
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Hi Tim, in CCX with the *TRANSFORM card you can create a new coordinate system (rectangular or cilindrical, related to an specific node set), don't know if t will serve to your matters. Also the *NODAL FILE card (used to store the nodal results in t…
