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Victor
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A couple of factors that affect it: The specified colors include the top and bottom values in the range but the display uses the color interpolated at the middle of each sub-interval. So in your screenshot, the displayed red is for the whole sub-in…
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If you use Gmsh (see manual) instead of Netgen, most of the adjacent edges end up with matching meshes so you can then merge them with Mesh tools -> Merge nearby nodes. However, in this case, there are some small misalignments that would need to …
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In both cases, the slave nodes appear to be following curve of the master face. At the bottom, that's concave so the (false) straight segments of the displayed edges cover the slave nodes, whereas on the side, it's convex so the curve that the slave…
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Well that was quick. *TIE works if you specify 1mm for Position tolerance. I guess the automatic tolerance was too small so it wasn't reaching some of the nodes. I chose 1mm because that's similar to the node spacings.
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@dculp Yes I'll investigate it but might not be able to come up with a solution quickly or that generalizes well. Unfortunately, the reason there are 3 options is that none of them are the best in every way. Elastic avoids the common and often rand…
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This is does look horrifying and I don't know why it's not connecting all the nodes properly. You seem to have set everything up correctly. I tried reducing the elastic stiffnesses in case they were causing numerical error, and refining the hole sur…
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That limitation is for the default option in bonded contact. I'm not sure how reliable *TIE is with it, but since it also uses MPCs, there's still a possibility it may fail sometimes. One reason it works here could be that the frictionless supports …
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@Sebastianmaklary *TIE operates on the expanded elements as Sergio said which means you should align their faces, not their midsurfaces to eliminate the node moving, which can easily cause that nonpositive jacobian problem.
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@Sebastianmaklary I'm currently replacing the shell elements with MITC type elements that are based on continuum mechanics instead of plate theory. They perform much better with curved shapes though they still have some idealizations like constant s…
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You can replace both the *STEP definitions generated by Mecway with custom ones that include stress. Add a custom model definition to the CCX branch containing the following: *STEP *STATIC *CLOAD 6170,2,1 *END STEP *STEP,PERTURBATION *FREQUENCY 5 *N…
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I'll fix that bug of not updating rpm from centrifugal force. Not sure about including rpm for frequency results just because it's a bit more work. I've had to make some changes to Netgen so Mecway can interface with it, so it won't work properly …
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The CCX beams being solids can require refinement where traditional beam elements may give an exact solution with a single element. This picture shows the close match I see after refining
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Regarding different modes between solvers, refine the mesh and they match. Mesh refinement is the solution to most errors in FEA. No mass participation factors for the internal solver, sorry.
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As MikeMcMullen said, it's not well documented, sorry. I've tried to include references in the manual for special features like cyclic symmetry, but most of it is very standard. The 2D and 3D solid elements and the linear static solver are the same…
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The last RC version is now the final 15.0 release. Thanks to everyone for providing feedback and extra thanks to Germán Bresciano for maintaining the Spanish versions of the manual and tutorials linked at the top of here https://mecway.com/product.…
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@AndreaC91, sorry, I must have read 801kN at t=0 instead of t=0.5 s. I agree that half the external force should be 1702 kN. The difference between 1610 and 1702 is probably because external force is partly cancelled by part of the weight of the e…
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@AndreaC91, principal stress 1 at that location reduces to 0.019 MPa with a Refine x2 applied. I guess the tensile stress is being tested at integration points inside the element so it might be higher at the surface. BASE-SX is only one side's supp…
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Thanks @Sergio. No way to find the current length unit, sorry.
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It's not because of the free version. The error "element set ARCH has not yet been defined." is because Mecway didn't generate an ELSET for ARCH which is because it doesn't generate duplicate ELSETs and already has Element_Selection which is the sa…
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@protontim, which version of Mecway is this? I've changed how that works in 15. Hopefully it's more reliable, but might also go wrong in some cases that were OK in 14. If you could send me the STEP file, that would really help in the long term sinc…
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@ddraht, I'll reinstate bonded contact symbols of some sort in the next version, which won't be so far away this time because I'm changing to smaller and more frequent updates. @Sergio. The button placement is a tricky one since on the right is not…
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Tet, I'm not sure, but yes, there's a similar formulation for quad8 and tri6. I just haven't worked on that yet and don't want to overpromise. Yes, it will work with laminates.
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I'm now replacing the internal solver's quad4 shell element with an improved formulation (MITC4). It was already something like a flat-plate equivalent but the new one works better with non-planar and non-rectangular elements. It will also have more…
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Intentional. Hopefully Move/copy serves that purpose instead.
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Mecway doesn't have an easy way to combine solutions. The feature that's meant to address your problem is configurations. In each configuration, you suppress a different combination of loads and solve them all separately.
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I've updated the beta to release candidate link at the top which will be the final v15 if there are no new problems found.
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Better use the "code" formatting for posting code on the forum otherwise the indenting and possibly some symbols get broken. @JohnM, I've edited your post to apply code formatting.
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You can do the interpolation with a script but it's a bit of work. Here's an example for hex8 elements. For other shapes, you would need to use the appropriate shape functions. To use the script, specify an element and a point inside the element us…
