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Type: Posts; User: Fisher

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  1. Yes, this is possible to do, the maximum shear...

    Yes, this is possible to do, the maximum shear stress can be calculated from the principal stresses, which are the eigenvalues of the cauchy stress tensor. (In FEBio the element-variable-code to get...
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    Any examples of a plotdata plugin?

    Specifically I am wondering about the following
    - Can the code for plotdata functions be 'bundled in' with e.g. a material plugin or does it need to be its own DLL?
    - Once the plugin is...
  3. Oh right, you can prescribe x and y displacements...

    Oh right, you can prescribe x and y displacements together to get an angular motion in rectangular coordinates, that's another way to do it
  4. Glad I was able to help Can you show an example...

    Glad I was able to help
    Can you show an example of what this looks like in the FEB file?
  5. The hacky way of doing this is with a rigid body,...

    The hacky way of doing this is with a rigid body, but it doesn't need to be a ring surrounding the disk. You can insert an arbitrary rigid body somewhere into your model (it can just be a cube block...
  6. To put this another way: - I have 2 models...

    To put this another way:

    - I have 2 models that are both beams with a square cross section. The length of the beam is in direction X and the height and width of the beam (the cross section) are in...
  7. Specifying Fiber Orientation or Material Axes

    Here are the relevant help pages in the documentation:
    https://help.febio.org/FEBio/FEBio_um_2_8/FEBio_um_2-8-4.1.1.1.html...
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    Has this feature been implemented yet? When I...

    Has this feature been implemented yet? When I tried it in 2.6.4 I got the error 'output variable "enclosed volume" is not defined'.
    I have my own matlab method to manually calculate volume using...
  9. This worked for me as well I didn't know what...

    This worked for me as well
    I didn't know what version of visual studio was used to compile the 'stock' SDK so I compiled my own SDK from the source code and used that, and the plugin is now working...
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    Oh this does work using the method you suggested...

    Oh this does work using the method you suggested (even on my older version of PostView), I had originally tried that idea on a more complex model and I assumed none of the node coordinates had...
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    Exporting directly from PostView I can't seem to...

    Exporting directly from PostView I can't seem to export a specific time step, only the initial configuration (which is obviously not helpful)
    This is just in PostView doing File -> Export -> [Export...
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    Export Geometry/Mesh from deformed state

    Hi all

    Say I have a mechanical model which is subject to some deformation. I want to obtain the geometric element/node data from this deformed state, so that I can use it as the unloaded reference...
  13. Behaviour of Donnan Equilibrium Materials in Static vs Dynamic Analysis

    The Donnan equilibrium material seems to respond very differently depending on whether the analysis type is static or dynamic.
    For example, I have a model which is just a simple box, one side is...
  14. 1532 Hi, sorry to raise this again. At the...

    1532

    Hi, sorry to raise this again.
    At the time I think I did mail you the input file but I may have found a defunct address to send it to. I moved on to a different problem in the meantime but...
  15. The output in my previous post is from a run...

    The output in my previous post is from a run where the augmented Lagrangian is already disabled (the laugon flag is set to 0).
    Let me know if I can provide any further information.

    Best regards,...
  16. I have compiled the 'NeoHookeanPI' template...

    I have compiled the 'NeoHookeanPI' template material plugin and that works successfully on its own example feb file, so this is not a problem that occurs with all materials.

    Here is a sample log...
  17. Plugin designed for FEBio 2.3.1 doesn't work on 2.5.1 even after compiling it again

    I have a material plugin made by my colleague which he uses on his installation of FEBio 2.3.1. The plugin has been compiled and is used on his Mac.
    He has given me the source code for this plugin...
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