when setting up the x y coordinates for your node does it matter where your origin point is or is it more important to be consistent with your origin point?
Hey, it doesn't really matter where the origin point is, the only thing that matters is the nodal positions relative to one another. The model can be positioned with one of of its nodes at [0,0] or the whole model can be offset by any distance from [0,0]. I won't influence the analysis.
Sounds like a pretty complex analysis with plenty of non-linear behaviour...nice. So, yes, I believe you can accomplish such an analysis with OpenSees. The challenge will be validating your results - if you're implementing a novel or complex analysis in OpenSees, the scope for making errors with how you implement the libraries methods is quite big! My advise is to start by solving a much simpler problem (perhaps even one you have a known solution for) and then build up the complexity incrementally from there. Hope that helps - good luck!!
Amazing explanation! Can we analyze a tetrahedron element with OpenSees? I was just wondering, is OpenSees capable of handling analysis like other professional software? Let's say ATENA or Abaqus, for example.
The big difference between OpenSees and more commercial software is it's lack of a GUI - I wouldn't say it's a direct competitor to something like Abaqus. But if you like scripting your own analyses anyway, it's super helpful.
@@DrSeanCarroll I currently works on my master's tesis and I want to use opensees for my models. I need abaqus-like features from opensees. Can we use Salome or GMSH as a mesh generator, opensees as a solver and Paraview as post processing to visualize the result? It would be amazing if this works since all software that I mentioned is an open source software.
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Good work Dr. Sean. As always. 👏👏
Appreciate it - thanks!
Have you worked with Grasshopper and karamba3d before?
when setting up the x y coordinates for your node does it matter where your origin point is or is it more important to be consistent with your origin point?
Hey, it doesn't really matter where the origin point is, the only thing that matters is the nodal positions relative to one another. The model can be positioned with one of of its nodes at [0,0] or the whole model can be offset by any distance from [0,0]. I won't influence the analysis.
Great video! I'm looking for a Python library to model sailboat rigs. Would you recommend OpenSeesPy for this purpose?
Hi, I'm afraid I'm not sure what's involved in a sailboat rig so difficult to say.
@@DrSeanCarroll in short, rigs can be reduced to a combination of cable and beam elements in a 3D space, with particular focus given to buckling...
Sounds like a pretty complex analysis with plenty of non-linear behaviour...nice. So, yes, I believe you can accomplish such an analysis with OpenSees. The challenge will be validating your results - if you're implementing a novel or complex analysis in OpenSees, the scope for making errors with how you implement the libraries methods is quite big! My advise is to start by solving a much simpler problem (perhaps even one you have a known solution for) and then build up the complexity incrementally from there. Hope that helps - good luck!!
Amazing explanation! Can we analyze a tetrahedron element with OpenSees? I was just wondering, is OpenSees capable of handling analysis like other professional software? Let's say ATENA or Abaqus, for example.
The big difference between OpenSees and more commercial software is it's lack of a GUI - I wouldn't say it's a direct competitor to something like Abaqus. But if you like scripting your own analyses anyway, it's super helpful.
@@DrSeanCarroll I currently works on my master's tesis and I want to use opensees for my models. I need abaqus-like features from opensees. Can we use Salome or GMSH as a mesh generator, opensees as a solver and Paraview as post processing to visualize the result? It would be amazing if this works since all software that I mentioned is an open source software.
Amazing stuff ;) Is there anything for plates and/or shells using 3d elements on openseespy?
Thanks! Yes we can analyse plate and shell elements - I'll have something coming on this soon.
Nice.