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Sergio
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@Andrea, looks like the beta coefficient helps to achive the stabilization faster than the alpha coefficient. But @disla static method also is very interesting. In my understanding the dynamic option simulates the act of releasing the load and lett…
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@disla, what kind of step have you made then? Lineal Static?
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Guess that you will need to add some damping or friction to the system, otherwise will be balancing constantly. Attached two runs, the second is wit Raleigh damping, alpha =0 and beta = 1s As I understand with damping the system will finish in the…
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If the problem is during postprocessing, you can go to Menu/Options/ and decrease the Resolution to make it more agile.
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Pay attention to the lower plate, if is single plate of 50.4mm you should replace the actual three surfaces by only one.
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As you say, you could mesh all with shell elements and use to create a new mesh, or in the CAD create directly the wireframe geometry if that the case, and export as DXF. I have created some models like that in FreeCAD and it works ok for creating b…
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@disla, I have downloaded and tested Welsim Material Editor, and looks great... until you start to try to use it in an eficiently/every day use. There is no thing as a material database, all are saved in individual files. There is no way to quickly …
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An hyperfoam material can be defined in Mecway using CCX custom model definition like this *SOLID SECTION, MATERIAL=SPONGE, ELSET=SPONGE ********************************************** *MATERIAL,NAME=SPONGE *HYPERFOAM,N=2 0.164861E6,8.88413,2.302E-5…
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About the material parameters, we determined in the past for rubber using only compression tests on a simple molded test sample (in fact the same as in the animation) and using a comercial tool. We had tested all our hardness range and determinate M…
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For microcelullar rubber I have used in the past (automotive door sealing) Abaqus hyperfoam material. CalculiX also includes this material, take a look at a simple comparation between hyperelastic (solid rubber) and hyperfoam (microcelullar rubber).…
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For extruding such elements you must select the "border" and not the faces.
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Sometimes you need to include the test devices also in your simulations to take in count the shape and contacts that cannot be represented by simple boundary conditions. Can you extend a little more on the failure modes that you are not seeing in th…
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Due to the large impossed displacement, this problem must be solved with geometrical no lineal activated. Your material is a sponge, so a propper hyperfoam material must be defined using CCX custom model definition like this *SOLID SECTION, MATERI…
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Have you used the special material *HYPERFOAM in your simulation? Also, maybe using hexa elements with reduced integration can help, 30% of deformation is a lot for the mesh.
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In CAD, I export every component of the assembly as an individual file. Some components that are made in the same material can be exported in a single file, very often for bolts I do that, one component with all the bolts, is easier to manage that w…
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If Is an step file, it must have only one component per file. Mecway doesn't recognize assembly steps
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In Mecway parts are called components, and if I remember well they are imported as element named selections (sets or groups in Prempomax). Look in the model tree under Named Selections, choose the one that you need (all the elements of that named se…
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You need to ask to compute the stress components before requesting the stress linearization, they are not included by default. Go to Menu/Solution/Stress and Strain/Stress, and then try again with the linearization. You must first select two nodes, …
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Mecway solver has become better for shells and beams than CCX imho, maybe that extra no lineal material option could atract more users. Whit this last upgrades such as the posibility to glue different meshes with TIE or couplings makes more suitab…
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Have tested the new node-surface coupling features on the internal solver and they are great, is a big advantage for working with with real shell elements. Have you thinked in adding no lineal materials to the internal solver as well?
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Well... just don´t do too much zoom :-) In my experience works razonably well for being a free software (probably the best of the open source world if we put in the scale the easy setup and having so good preprocesors available as Mecway and Prepom…
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Thanks for this update, the new simmetry bc for beams works really good, attached first test with a security cage
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Just a newbie question, why the MFRONT library of materials (and others) is not directly integrated in the standard CCX distribution? There are a lot of post here and in the CCX forum on how to install/compile this feature
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@Victor, probably the easier way to get a midsurface would be adding to the move/copy tool an extra option to use the normal+ or normal- as direction at a specific distance, the same as the extrusion tool have it today. After that the user should d…
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I found today this nice paper about reinforced concrete, maybe could be redone in Mecway/Calculix https://www.linkedin.com/posts/aymanelfouly_els-software-progressive-collapse-validation-activity-7148028782396719104-3Dno?utm_source=share&utm_m…
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@kuhtip there is no way by the moment to identify the user unit system, so you must work in meters and Newton in your script as is the internal unit system that use Mecway. Would be great to have a custom tool bar (floating?) to add this kind of sc…
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@cwharpe about putting different spiders from different fasteners in different components, have sense? I meant, is a resource to connect to the beam that simulate the bolt shaft, only those beams must be in different component in case of different b…
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Hi @cwharpe ! Thanks for taking time to fix my poor man script. I think that the logical is that all the beam elements share the same material and component.
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I have made something similar, I use two scripts, one for create a node in a circle based on three selected nodes. The second one takes the selected nodes and creates the spider and material. The user must select the center node as the last one in o…
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@Victor , I have seen that you mention that there are some internal check of element shapes and topology, could it be implemented in future version some kind of reporting on this elements checks? At the moment the only way to have an element quality…
