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Upps. Ok. I thought you file already had the right material.
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Hello Andrea, Nice to hear you . You have been in silence for a while. I think your problem is about initial distance between ball and target for contact to solve properly. Check attached file. Solution is less than 3 min. Solver stops once you are…
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MKL 2019 Update 3 for Windows just for FORTRAN is enough not the full collection with C++ . Visual studio integration is not required. Do not move files . Add to path according to picture 5.png of prop_designprop_design post to locate the files. R…
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It is a mesh problem. You have poor quality elements. Very thin triangles. Could you post the underlying geometry. ¿Step, iges,..?
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I did not read properly your post heading Attach example . There is a specific section RIGID BODY in the cccx manual. I'm still not sure how does the REF and ROT NODE works What I found is that you can define different body objects to behave as u…
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Very high Young's Modulus ?
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I faced this issue recently. Check this option in case you need to maintain the support point with fixed coordinates. It allows to adjust the rotational stiffness.
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ERROR: TRIG 27982 has 5 neighbours!!!! ERROR: TRIG 29503 has 2 neighbours!!!! ERROR: TRIG 29512 has 5 neighbours!!!! ERROR: TRIG 29515 has 2 neighbours!!!! ERROR: TRIG 29516 has 2 neighbours!!!! ERROR: TRIG 29519 has 2 neighbours!!!! ERROR: ++…
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You can mesh a stl surface mesh to volumetric mesh directly from Mecway with the "auto mesh 3D" tool. You need a water tight surface. Give a try with the attached one. To be sure your volume is not empty I recomend to checq with the Mecway cutting …
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Sure. I have added some springs and extreme mass to be more “interesting”. Running the model is 2 minutes. Victor I notice that postprocessing is only using 1 core. ¿ Is it possible to get all cores working setting some variable apropiately? Thank…
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¿Have you been able to mesh the geometry directly from Gmsh? I have experience some issues with the last versions of Gmsh that nothing had to do with Mecway.
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Chain Pendulum with Nonlinear dynamic analysis. It also works for low speeds.
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Thank you for the new update. I can see that many of the community comments have been attended. Great job Victor.
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Hello barrti See post "cannot perform volume meshing only surface meshing". Check the file that “previously worked” for you to see if you had 3D or 2D elements at the end of the meshing process. Victor probably made some fixes in the new v.11 and …
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¿Have you tried to create a unique component (surface) before exporting (Insert > Surface > Knit.)?. Salome has some free tools to build such a unique component.
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Thanks, Barmin, Victor I will have a look. I'm advancing carefully. So, after all your help and with more faith on FEM method I would like to recover the background motivation of this post. ¿Is there any way to know the initial mesh size in order …
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That’s a very good comment from your side. Maybe you are right and I’m trusting too much in the formulas.( Old generation ) I should suspect at least the same on the origin and approximations made to get those formulas.
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Hello Victor , When you say Von Mises is 0.5% error, Axial is worse, or Shear is the worst ¿what are you comparing with? I’m using as a reference a theoretical value provided by EN 1993-1-6 EUROCODE 3. When you say Quad8 360 degree 38.720 nodes, …
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Hi Victor , Thanks for your help. I really apreciate. I have included the cylindrical formulas of the stress matrix to your finest 3D model. Adjust the pressure to fit the model. Discrepancy is similar to what I found. Von Misses is far from the p…
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At least elastic and nonlinear material. Not all the analysis are mandatory. It depends on working conditions. I will be able to solve if the model keeps around let’s say 500K nodes but at this moment only for the shell I’m talking about 200K. Roof…
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Thanks barrti, That debate would be interesting in the frame of some other software but actually Mecway doesn’t have any shell formulation at all. https://mecway.com/forum/discussion/629/mindlin-thick-shell-kirchoff-thin-shell-formulation In fact…
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Also comment that if I apply a local refinement the nodes in the transition area disconnects.
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wow .That's pure brainstorming.
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Nice, First time a see dynamic analysis in Mecway. Seems you can obtain the natural frequency of the system ¿Isn't it? Found a second option which maybe is easier to implement. See attached file. Line pressure on the axis of a beam with unit lengt…
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You mean a way to make existing formulas available to other files? Yes
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I’m working on the Stiffness Matrix in Cylindrical coordinates and it would be nice if once developed I can have available all the formulas for each component for the rest of the models without having to write them again one by one. Maybe as you sug…
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Thanks Victor. ¿Is it possible that for future versions a custom formula can become part of the program library, so it can be used for the rest of the models?
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I was thinking and maybe you could build two pushpins. Unit surface on the head and apply the same pressure BC to both surfaces at the same time.Pin could be a beam element.
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" I am still trying to determine the formula for radial and tangential displacement" “I think you can get tangential displacement with a cross product but not sure of the formula off the top of my head” Nice challenge.
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My solution was not what was needed sorry.
