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Thanks for the comments . There are still some things I don't fully understand. Apart from the mesh and length adjustment possible incompatibility. 1-I'have been thinking for a long time that when analysis is performed with Automatic time steppin…
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File for reference. All three set ups for pretension section loads are ready. Just activate and deactivate the one you need.
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Thanks Victor.
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Hi, I have always found the ccx output is kind of weird. Taking into consideration that looking at the reactions is part of any study's basic check , could you consider postprocessing that value internally subtracting the imposed forces to have onl…
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It now converges with *TIE contact on the LUGS too. ?¿?.
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Hi @Victor, I had no issues with the actual way MECWAY does it. For this problem, Mecway Only Compression converges fine but doesn't capture properly the behavior of the system . Is not a MECWAY problem. When I say is more stable and causes fewer…
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It has turned out that tying the base nodes together as a rigid body is more stable and causes fewer convergence problems than applying *boundary. On the other hand, releasing one of the degrees of freedom is simpler. *RIGID BODY,NSET=COMPRESSIONON…
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Once again my explorer doesn't update the mecway webpage. Most of these are duplicated Now it's more clear to me. 1-¿Do you mean all bases tighten to a REF and ROT Node (with Rigid Body not Kinematic). I will try.
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I have look in detail one of the compressions only supports, the Gapuni elements generated for it with their nodes. It is more complex than I thought. You are creating two GAPUNI per node, but some nodes are missing the second one. They are the o…
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Hi @Victor, One additional question. There is a total of 96 *ELEMENT,TYPE=GAPUNI. I can see it in the INP. There are two identical Compression Only Supports 48 GAPUNI each side. GAPUNI (2-node unidirectional gap element). One is the base and the…
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B-Only Compression Support in which one DOF is released. Example attached.
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Hi, I recall some years ago Sergio found the way to create a compound part in GMESH before meshing so the mesh was conformal in between the different parts. Maybe it could work here. https://mecway.com/forum/discussion/comment/3956#Comment_3956 E…
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Hi Victor, I think it is a very good idea to have a consistent framework for the different solver outputs and I trust your final criteria as always. Regardless the final selected option that update would also apply to Principal Strains, right? …
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Hi @JamesH , -For simple stiffeners you could also try to use manual mesh generation by extrusion. -*Tie should also work here. Regards
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Hi @aftab & @Fatmac -To fix opposite normals I have imposed an overall orientation and then inspect the model to see which normals are still pointing in the "opposite direction". The monitor provides some node numbers which can help to locate …
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If you solve with "No extra contact step" it solves the quasistatic problem too. Initializing the contacts without any load can be difficult because each contact element is pulling without any external driving force that gives a preferred direction…
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Regarding Validation: I'm missing 137 Kg in the overall vertical reaction. I'm using some springs in the support to separate External loads from reactions and measure properly.I measure reaction at the spring base. I think some couplings could be …
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That's an interesting approach for modeling connections. I would try to validate with some known reference. The issue I think it's one of the bolts. If one runs the analysis without the quasistatic option, it completes without issues. Fix those …
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Maybe you could approach the problem in the other direction. I mean to make the real piece to resemble to your stress-free initial design conditions model. That is the so-called Post weld heat treatment (PWHT). ASME Secction VIII, División 1 provide…
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Note that the magnitude of the velocity should also be a function of position. Each node rotational velocity depends on the distance of the point to the axis of rotation. (The shortest distance). That " radio" of each node can be computed with the …
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Thanks Victor.
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Appart from my previous question: I would add a suggestion . A reminder if the user changes the stress recovery point in the material definition. Something like: "Recalculation required". Appart from that, I just finished a small Mecway template…
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....Comment on your inbox
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Is this simplification still reasonable for an explicit nonlinear dynamic response analysis or does it suppress something important? @Sebastianmaklary Non-linear Buckling involve out of plane displacements. If you impose symmetry BC you are re…
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Congratulation Victor for the new Version. !!!
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Membranes can’t sustain bending . In a bending test you would expect a V shape compared to the U delivered by a regular shell. To see the expansion add NODE FILE OUTPUT 3D option
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Thank you Victor.
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Hi, Following the above discussion, If Perimeter value is not involved in the stiffness matrix, would I be wrong if I assume that value as 1 [m2/m] by default so I can indistinctly convert in-between linear load (KN/m) and Traction load (KN/m2)?.…
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Makes sense. Doubts cleared up. Thanks Victor.
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Example One arrow size should be 10 times higher than the other.
