Victor

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Victor
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  • Hello Andrew This is actually a shell mesh, even though it looks solid at first. That's the reason it complains about no thickness in the Aluminium material. Not having a thickness is then the reason it doesn't solve. Mecway can only make shell me…
  • Or matweb.com which has a very comprehensive database of just about every material.
    in Materials Comment by Victor July 2014
  • Hello Andrew There aren't any that I know of. If you create such a file yourself, you can import it into other models but we don't provide them currently sorry.
    in Materials Comment by Victor July 2014
  • Yes, hold ctrl to do multiple selections of nodes, then change them all to faces in one hit.
  • Hello Andrew Here are two ways: A) Since it's from a STEP file, it's better to apply loads directly to the surface there so you can remesh it without losing the selection. If the hole is made from 2 surfaces like in the 1st picture below, you'll h…
  • Hello FEMnewb. Thanks for the suggestions and helping to improve Mecway. The way loads are distributed over nodes is consistent although it's different to some more classical FEA programs which have them independently attached to each node. For exa…
  • I'll consider importing results from a fluid mesh to a structural mesh too but can't promise anything. Especially since this is perhaps a more narrow application than simply converting to other FEA formats.
    in WISH LIST Comment by Victor July 2014
  • Good suggestions. Not many people have asked for that which is why it's not there but I'll consider more export formats for future versions. You can already export the mesh to Gmsh's format which is fairly convertible, but it doesn't include any bou…
    in WISH LIST Comment by Victor July 2014
  • Hello apadzak. That would be an interesting feature. Are you talking about displaying internal iso surfaces in a transparent solid, or just contours on the outside surface?
    in WISH LIST Comment by Victor July 2014
  • Don't blame yourself. Software should be usable without a manual. One goal for Mecway is to make a manual redundant but unfortunately that's still a long way off.
  • Hello saf001. I was formerly the sole developer of LISA from 2006-2013. They are two independent companies and both are licensed to sell some of the same code.
  • Hello Jim_C You can turn off the element edges with the button at the top right of the toolbar as shown in the picture. You can change the range of field values displayed in the contour plot by expanding the branch of the outline tree and right cl…
  • A stress linearization tool is now available in version 2.0.
  • It no longer exists sorry. It was too limited to be of much use. To generate a model programmatically, you can create an liml file. There is an example of a spreadsheet which generates pressure vessel components installed in the Samples folder (Mec…
  • That's very helpful. I can't promise everything and may contact you by email in future for further clarification.
  • Thanks for the suggestion. We'll consider this for version 2 or 3. Can you give a bit more information about what would be useful, such as: 1) Shell elements only 2) Solid elements along lines of nodes 3) Solid elements along arbitrary lines, even i…
  • Hello Luis Mecway can't model a heat pipe because it involves temperature driven fluid flow and phase change and it's unlikely to have these features in the near future. A CFD package might be more suitable.
    in heat pipe Comment by Victor March 2014
  • Cheers Geoff. I hope you find it's more effective for loudspeakers than before even though it's still not natively interfacing with ABEC3
  • No, you're not missing anything. A lot of different thicknesses isn't something that's very convenient in Mecway v1. Unfortunately you'll need as many components as thicknesses. Version 2 will improve some of the issues with the outline tree but pro…
  • Hello jvrajadell *Removing constraints* I hope I understand you correctly. If you have a constraint applied to many nodes, and want to remove it from some of them: 1. Select the nodes in the graphics area 2. Right click the constraint in the outlin…
  • I think the computer gets the credit for that Though I see IBM 3090 was pretty amazing for the 80's! I'm still not happy with the performance of the iterative solution. Somehow, I think if you could just look at the intermediate results and choose…
  • I can understand that kind of frustration. I'll try to get some way to save or preview the results for version 2. This will become more important as more non-linear features are added.
  • Hello jvrajadell In Static 3D, the convergence tolerance is only used when it does an iterative solution, which is currently only when compression-only supports are present. Even in that case, the default of 0 really means 10^-11 which is often ade…
  • I agree layers should map to components. This will be added in version 2.
  • The 2nd and 3rd pictures are a great graphic example of the iterations being incomplete! You can also turn on the constraint symbols with the glasses button in the tool bar to see which nodes ended up in compression (red) and which were released (g…
  • The convergence test is done on all the nodes, including those not included in the contact. Typically the error decrease gradually for several iterations then rapidly drops to effectively zero (10^-12 or so) as all contacts end up in their final co…
  • Hello Inquisitor The tolerance value is roughly the relative error in the displacements of all nodes. The convergence test with compression only support uses a displacement convergence criterion where it is considered to be converged when ||delta …
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