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Comments
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rhoka, I don't understand your suggestions in regard to this example? If you are refering to create linked surfaces to apply the loads, you can do them either way but for this case, it's a lot quicker the way I used in the videos. As for the bounda…
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I know what parametric modeling is and it can be done for shell/surface model (I attached the file already. If you update one dimension, everything that is associated with it will automatically update). I feel it is applicable to Mecway forum becau…
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Attachments.
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Attachments.
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rhoka, I figured out how to model shells/faces in FreeCAD that are fully editable later without using scripting for parametric study/design changes. Example attached (trunnion).
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Attached is a plot of thr gray contour. This is just extra if it doesnt take too much time. Thanks!
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Victor, can we add borders to the color contour legend? See attachments for without borders and with borders. Thanks!
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rhoka, I'm not sure why your results came out different from the video since I used the same model you provided. Since this is a 3D analysis, you also need to restraint the Z-direction. Once you do that, you will have all three directions properly…
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rkoka, the compression only support is a non-linear type support and we should limit the convergence limit to a number that would be acceptable to you. I usually limit mine to 0.001 or 0.0001. However, there was another issue when I attempted to ru…
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I haven't tried using scripting. Thanks
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Thanks for the info. I knew about FreeCAD but couldn't edit the geometry after creating the surfaces for geometry like you one attached (changing ODs or in-plane or out-plane angles).
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Rhoka, what software are u using to create that shell/surface model like your attached pic. Ive been looking for one similar to FreeCAD that we can modify geometry after creating them (parametric modeling or the one similar to Ansys or Abaqus). Is i…
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Correction to my previous post: it took about 45min to solve 325,000 nodes with 4 bonded contacts using linear static analysis on my 2nd generation i7 quad core.
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rhoka, can you provide the step file that you were using that failed to solve after meshed with 300k nodes? Thanks
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Thanks for your comments. I wouldn't attempt to build a mesh model using solid elements of the entire building. I have solved 300,000 nodes in Mecway with my 5 years old i7 intel quad core without any issue. It took about 20min to 30min to solve on …
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rhoka, my intention was to show that Tet10 elements can also be used in thin wall components (also discussed in the referenced paper). Sometime we don't have a choice to choose to use all shell elements especially in complex geometry. Tet10 is a go…
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I would like to see your step file if you can provide it.
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Protontim, I'm interested to see your step file if you can provide it. As mentioned in Victor respond, I would avoid using Tet4 or linear tetrahedral elements because they are too stiff. Tet10 or quadratic tetrahedral elements perform very well. S…
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Protontim, can you share your step file so we can take a quick look at it? I'm just curious of the type of crashes that you experienced for my information. Thanks
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prop_design, thanks for your comments. There may be some who do not have access to Ansys like me to do test on Mecway to see the comparisons that why I posted it (referenced to Ansys PDF results). It's good to know that you did many tests and they…
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prop_design, thanks for you comments and just an opinion, I feel that only half of the outer surface of the pin will contact half of the inner surface of the hole leaving the other half not in contact. Bonded contacts have all applicable degrees of…
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johnkent, thanks for your updates. Quadratic hex elements (Hex20) require much less elements as compare to quadratic tet elements (Tet10) to get about the same results. If you look my video at my second meshing run (first refinement) at the hol…
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For this particular example, frictionless support on half of the interior face of the hole away from the load direction should also yield similar results because that half should always in compression and no tension.
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I was doing a quick model and video of this and just saw your comments (johnkent). I agree. J_Marc, I'm not sure if you have a 3D CAD modeler of preference if decided to use for this example (we don't have to). Click on link below for a quick vi…
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CWarPE, if you have your elements grouped into components, you can also hide them in the results (see attachments).
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Disregard previous YouTube link and see the one below (something wrong with the previous upload).
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cirasj, There are many ways to do this. You can use a new feature from Mecway and do bonded contact as shown in video below. I didn't have your dimensions so I used random dimensions just to show the general concept. Also there are different way…
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J_Marc, is this what you are looking for (click on link below)?
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cirasj, can you give us a sketch with dimensions and thicknesses of what you trying to model? Thanks
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Victor, this is great news. One of my issues with Mecway is when the model has more than 100,000 nodes to 150,000 nodes, everything is very slow and lag. My computer graphic card may not be as strong (GeForce GT 540M 2GB).
