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Victor
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Good points there prop_design. Screen space is a tricky one and I'll definitely take that into consideration. Your suggestion of customization is probably needed already and could deal with conflicting requirements. Non-regular users definitely need…
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Can you clarify what you don't like about ribbons? MoI's UI seems quite similar to a ribbon, at least in the sense of having groups of related buttons and labels under them. Mecway does look dated and the menu-and-toolbar UI came at a time when mos…
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I can understand. When things mysteriously don't work, you can't know where to look and it easily gets worse. I'll make sure this unit issue is clarified in the final release. It's an unfortunate difficulty that's always present interfacing between …
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VMH: The factor of 1000 in stress looks like it's because the load was also off by a factor of 1000 (1.864e4 lbf/in^2 vs 18.6 lbf/in^2. Any time Mecway converts to or from an .inp or .frd file, it assumes that the file uses the m,kg,s system. Howev…
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Yeah, ribbons are important for credibility :P I think they can be done both well or badly. I'm conscious of the too many clicks problem (MS Paint) and will certainly try not to make things worse for the overall experience.
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I notice you changed the "equivalent plastic strain" (not effective as I wrote earlier) from 0 and 0.198 to 0.002 and 0.2 respectively. Is this because of the "equivalent" part? From what I understand, you should subtract elastic strain from total s…
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Here you go. I deleted the existing material and added a custom model definition section with a plastic material for bilinear hardening like this. I also doubled the load to make it exceed the yield stress in some places. *SOLID SECTION,ELSET=Meshe…
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Yes, this model is set up the way I would expect. However CCX seems to have the same limitation as Mecway in not allowing constraints on MPC slave nodes. I tried to work around it by extruding a thin layer on the SLAVE_NODES surface so they're not t…
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VMH: I'm surprised at such a big difference. I'll have to specify CCX 2.8 as a minimum or include those alternative names like DISPR instead of DISP in .frd files. No OK and Cancel button on the custom model definition window is a bug. Thanks for …
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Sergio: 3 and 4) I have the philosophy that all the data should be defined in one liml file as much as possible. I realize that some people prefer/need to have multiple files so different tools can operate on them, and to manage unwieldy/changing m…
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Picture for my previous post.
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Rhoka: I think the .frd file you posted is faulty. The CGX 2.8 manual says the field variables should be in the E12.5 Fortran number format. That has 12 characters in each number. But the negative numbers in this file have 13 characters. The attach…
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Sergio: Thanks for such detailed suggestions. 1) Frictionless support does this if all the faces lie in the symmetry plane, which they should do anyway. One weakness is quad4 shell edges which might be tilted if the element isn't normal to the sy…
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Picture of model in previous message.
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That's an idea. Here's an example using bonded contact to transmit the forces from a large number of nodes to a smaller number, then beams to transmit them to a single fixed node that gives a reaction moment and force for the whole surface. You cou…
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What do you mean by API? There's no documented Application Program Interface. In case you mean having a ribbon instead of menus and toolbars then yes, I do expect to do that, maybe for the next version.
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Thanks for the support all of you. 1) Harmful file warnings should become less severe after more people download it and Windows/Chrome learn about that. I'm also hoping to start using code signing which should help gain more trust with them too. 2…
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Yes. Version 4 will have a pressure load which you can define by a formula as a function of x,y,z,t. So you can make a wide range of pressure distributions and combine them. I expect to release a beta version in the next few days.
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Let us know if you have any more trouble with it. Please do a simple model of fabric first to make sure the bending stiffness isn't too high. I haven't tried making solid elements that thin before. You'll need to use quadratic elements, probably hex…
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The 3 element types have different levels of completeness of their physical model. In order from most to least: 1) solid 2) shell (no normal stiffness) 3) membrane (no normal, bending or shear stiffness). A shell and a thin solid can usually be use…
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There are a couple of built in options: File -> Print File -> Save As -> PNG Images (*.png) They both take a screen shot of the graphics area. So you should resize the window as big as possible first. Using the png file, you can print it wi…
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Hello iii 1) There isn't an elegant solution. Your second suggestion is probably the most general. One way to do that is by extruding a thin layer of elements out from the edges. Then you can use the newly extruded nodes for the symmetry constraint…
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Sure, you're welcome to share it with them. Sorry about the dxf, I've just added it to the forum's allowed file types so it should be OK now. I'm attaching a file here just to test it. Mecway can mesh a 2D dxf file with simple closed shapes using …
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That's a fascinating looking program - CAD in a single file?! I tried opening both STEP files in various programs with these results: tute01wfrm.step: Mecway - no. Error message FreeCAD - no. Appears blank ShareCAD Viewer online (http://beta.share…
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Hello VITTAL_S_S. Those are all good points by Sergio. For a comparison to LISA, see this other thread http://mecway.com/forum/discussion/71/mecway-or-lisa#latest but be aware it's a bit dated so there are now more new features besides those mention…
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Hello Fol Mecway doesn't support open/close type contact between two parts yet so unfortunately this won't work. The frictionless support is for sliding of one part against a rigid surface. If you can consider the metal part to be rigid, then you c…
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Sergio: No but I expect it to be ready in a month or two. johan: I see what you mean now, thanks for the suggestion. I might try to add it as a labs option in v4 but not sure. What are the useful ways to represent the stress in this case? von Mises…
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That's right, there's currently no automatic reaction moment. You could do the calculation using a spreadsheet by exporting the reaction forces along with node coordinates from the Table.
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rhoka: The sandwich material in LISA is/was just a special case of laminate, which Mecway has. However a soft core with stiff skin can be very inaccurate so this is often a bad way to model an actual sandwich panel. See this other discussion showin…
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This is still something Mecway's own solver can't do unfortuantely. You could export to .inp and solve it with CalculiX. That would require some manual editing of the .inp file if you need any special features.
