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You can also reorient the U and V local axis for the elements of interest before solving. This is done in element Mesh --> element properties. This way you can save some post processing and math.
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It happend also to me. I had to solve again once the table is created for the set to appear. I'm using mecway 13.1 and ccx 2.17. Regarding selecting nodes shared by two perpendicular shell elements, i'm not sure what uu, vv and uv means. Thats p…
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Hi JRP , I'm glad to see you found a workaround. You just need to give a name to the set of nodes. In your case you named them Weld 1, so it directly appears when creating a new table in the solution tree. See image. The only drawback is that nod…
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That’s because ccx expands the beam element into a solid element. Each node becomes 4 nodes. Before solving give to the node, a name into the Named selection tree. Once solved you can add a new table int the Solution tree by right click > New tab…
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HI JRP, I don't think any structural software include the welding details on the FEM model. They just extract the forces and moments to be further introduced in the connection model. They have a huge connection library waiting for the forces and …
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You can do it with shells using ccx.
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Hi, ¿By path plot do you mean Stress Linearization.? In that case this option is available in Mecway. Go to the GUI Tree > Solution (Right Click) > New Stress Linearization.
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Thanks Victor, I understand the need to keep consistency in the criteria.
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Good morning Victor, I thought the word "Support" was reserved to define the behavior of the model with respect the outside. From my point of view, you are imposing additional constrains not requested between the elements of the model. Beams: Whe…
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Looks really advanced. That's a complete new level for me. as I do not have programming skills. Let us know if you get some progress. Your name is MANUEL. ¿Are you Spanish? ¿Are you student? Regards
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Wow, didn't know about this option of separating the load from the loads for buckling. I will try. Seems the proper way to do it. Thanks Victor.
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One thing that it is important gwillis, When you say: "If the other degrees of freedom are not specified (4-6? rotations around x,y,z axes?) as you have done...." -I have not specify anything around x,y,z axes. I have stablished a relationship be…
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Not sure I understand your question,.. If two beams share a node, the software automatically consider the connection as rigid. (Same displacement and same rotation of both beams at that point) If you separate the beams without any node in comm…
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It is a Mecway file . The file has 21 nodes so you can run it in Mecway I I'm not wrong. Victor can confirm that.
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Buckling Load Loading conditions have been changed as load is now applied to the web. 887KN ccx against 822KN Internal Solver. Without 100N 872KN ccx against With 100N To be fair the 100N should be applied incrementally as 100*t. (*) First mode…
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Find example with arbitrary loads on the beam and free to rotate. Just need to keep in mind that Pinned means same node displacement and rigid same displacement plus same rotation. In this case, for large deflections I would go to nonlinear analisys…
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Hi, I would draw independent beams not sharing any node and impose the link through constrain equations on the vertical displacement for example. See attached file. 1 uz3 - 1 uz8 = 0 Where 3 and 8 are the corresponding nodes at the connection p…
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I'm sorry Aftab, Hope you didn't have a heart attack with my small result. I have applied symmetry, but your model has one fixed and one sliding support. My fault did not see it. 764KN ccx against 740KN Internal Solver. 760KN ccx once refined. I …
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HI Aftab, I'm getting both the same result after some arrangements. -I normally introduce the load as 1 so the buckling factor becomes the buckling load. -Symmetry as far as I can to reduce computation time. -Work some minutes on axis orientation …
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I think that for beam theory 1- cross sections of the beam do not deform in a significant manner under the application of transverse or axial loads and can be assumed as rigid. 2-during deformation, the cross section of the beam is assumed to rema…
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Another observation. When we set a displacement BC to a node of a second order beam element in ccx , the BC is only transferred to the vertex nodes when it is expanded to the corresponding cuadratic solid element. Middle nodes do not respect the BD…
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Just in case it helps to solve the issue , in this particular case ,less refinement helps. Edited: Dimensioning the element to a more squared shape also helps. This two workarrounds suggest me that maybe the issue is some shear locking as the ind…
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Hi mmartin, This is how I would normally simulate Pinned and Clamped beam connection as a whole. The effect is clearly seen on the main beam deformation. Keep i mind that for the main beam, stresses can be underestimated when using beam elements. …
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¿Would it be the same if you introduce the formula as a temperature?. Nodal values will be immediately showing the result of the formula at that point without the need of solving. Once the formula is checked, if it is correct you can supress from ac…
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Very good post JohnM. Covid's fatigue challenge.
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Hello, I remember working on this some time ago. I have rescued some formulas and attach example. If I'm not wrong that profile belongs to EN 1993-4. Anex C I have substitute dc/H by Pi number for you to easily identify it and also cylindrical stre…
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Thank you very much Victor. Looks amazing.
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I was very surprised about cmmcnamara results on his i7. i7 6700HQ @ 2.60GHz RAM: 16.00GB Kingston DDR4-2400 Run Time: 01:56 My spects are very close apart from ram speed. i7 4700MQ @ 2.4GHz RAM: 16.00GB DDR3-1600 Run time: 5 Min 17 Sec I have …
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Very good numbers, JohnM. i7-4790 looks really optimized performance versus price. ¿Are you running on Windows platform + Mecway or ccx pardiso on Linux? Seems that the mem amount is more important than the mem frequency. ¿Don't you think? ¿Why …
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CPU: i7 4700MQ (2.4GHz -3.40 GHz) (Refurbished 2015) Nvidia Gforce745M Cores-4 Threads-8 DDR3 2X8GB PC3 12800 Dual Chanel (800Mhz) SSD Update:SanDisk Ultra II 480GB Update Laptop Total Investment 760,00€. CCX Pardiso 2.16 using 4 cores Intel mkl 2…
