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You still have a mixture of First and Second order elements. Merge nodes after homogenization. Then it will work. Your model looks difficult to me. Your spring is thin and has significant presence of Shear Mode III . . I would try to do some valid…
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There is a mixture of First and Second order elements. There is a line element in between the model too. You can find it with the tool Select elements by ----> and then Line 2 Line 3. Then erase it. What a cool shape.
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Thanks Victor.
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I completed the exercise with very good agreement. I don't do electrical FEA at all so probably my first part of the analysis to obtain the internal heat generation could be improved or speed up. Regarding the thermal analysis I had to do it with t…
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I have work Joule Effect on Mecway based on an example problem very similar to yours (more complete) that has analytical solution to compare. It solves the nude and insulated wire. It could eventually help to validate your Setup and Procedure. Read…
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You need to put all your electrical and thermal material properties right into place first. Clean and with their units. You started the post saying something about h=10 which now seems that has disappeared, You are mixing material properties with r…
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Thermal Conductivity units are W/m/K What about your electrical properties.? How did you end up in this value of "Tmax should be approximately 50C".
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Starting with a small brass rod 1mm dia. x 5mm long, I am applying 0.42A. Ta=ambient 20C , h=10, K=109 Tmax should be approximately 50C ¿Could you detail the Brass material properties units you are using?
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Here an example. Thermal Transient with varing negative mass flow. Result shows an alternating MF. That do not happen when the mass flow is positive. (constant or varing). I think this is a ccx problem because frd is showing the alternating value to…
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Hello Victor, I'm considering including an amplitude for the mass flow. First thing I have done is to request the actual value with *NODE FILE MF and I have found that the one defined as negative (water in the attached file) is showing and alternat…
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I have written the surfaces by hand and the result now matches very well with the theoretical expected result. The small deviation is due to the idealization of zero tube wall thickness used by the formulas. I have had to use a minimum thickness to …
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@Fammal Probably too late but recall to request for CDIS and CSTR to see contact results. Mecway doesn't add them automatically as it's supposed you are not unsing contact in Axy 2D. @JohnM If you enforce a maximum time increment your BC will be…
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I try and keep the ways to do things to a minimum :-) I agree but I thought it's good to know users can get much more if they explore. Mecway has clearly prioritized reliability over the number of functions. This makes it a more robust program…
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Since the solvers don't do non linear in 2D Axi ccx does. Just push the run button. Contact will automatically trigger the NLGEOM analysis.
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You could take a look at the modes you are using to build the solution.
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HI, Assuming the are no external forces on the bases, aren't beam forces at the edges near external bounding conditions same as reactions? Axial could be debatable as it may not be strictly vertical reaction force if the columns are hinged but she…
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Thanks Victor.
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Hard pressure-overclosure behavior is internally reduced to linear pressure-overclosure behavior. That's probably why Victor didn't implement Hard. With linear you cover hard. Hard uses default values that sometimes fail, specially if your contat n…
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HI Victor, Is there a way to increase de defaoult Buckling Accuracy in the new version?
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Thank you Victor.
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That is not a good reference for comparision unless the thickness is very very small so bending stress doesn't have any role. If you want to test it you better compare using some Catenary example.
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Hi Sarvesh. There were some issues reported for this model + Offset. https://calculix.discourse.group/t/buckle-step-with-prescribed-displacements/1404/7
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Thanks both, knowing others have solve the problem is encouraging. ¿Are you solving with ccx / mecway solely or do you get some support from other FEA tools?
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Thanks both, This model came up in a different Forum. I found it a good opportunity to try it and see which could be the drawbacks. I have experience with Liquid and Gas storage, but powder /solids storage are a completely different world although …
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From Mecway Manual: "On a shell element, the face is offset from the midsurface by half the element thickness so a traction applied to the face generates moments at the nodes as well as forces. If you don’t want these moments, apply it to the eleme…
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Thanks Victor. I solved the problem properly with ccx nonlinear. It solves fine except for a slightly large bending moment at point A. My surprise was with Openradioss. I changed some parameters (Density ,K, F) to see if there was some automatic m…
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This is the truss system with ccx and only compresion beams in the diagonals. It is nonlinear (I think it must be nonlinear for this kind of material) Final results are: (+ = tension) Side in Tension. Final Tension 8.999927E+01 N Side in Compresi…
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Hi, Isn't tension and only compression materials nonlinear behaviors?. Is there a reason why the problem is not approach with ccx solver? Is it because there is not such a variety of beam sections.?
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Yep, It is ccx. I have finally plot the integration points at the undeformed geometry as reference and interpolated the values known their coordiantes. Thanks
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HI Victor, I'm comparing the SXZ value at the integration point with the SXZ value from the interpolation tool and they are different. ¿Should I assume the interpolation tool is made from the nodal values?. In case it is, ¿Would this be hard to do …
