TexGen

Hi, Many apologies for the slow reply - I thought I'd sent one and then realised that I hadn't hit send so had lost it. If you export an stl file all you have is the geometry, there is no information included about volume fraction or orientations. When export either an Abaqus .inp file or a .vtu fil...

Hi Horkoon, I'm afraid that I don't have access to a Windows 11 computer so haven't tested the installation/uninstall on that. It may be that the paths are not set up correctly for the uninstall to work on Windows 11. However, you should be able to just install a new version on top of an old one wit...

Hi Horkoon,
Please could you give some more information about which version you have installed and what computer you are running on.
Best wishes,
Louise

Hi, The domain volume fraction function gives the Vf for the whole domain area, taking into account the Vf in the yarns. If the yarns were solid (ie the yarn Vf is 1) then the domain Vf would be the yarn volume/domain volume. If the yarn is porous (ie the yarn Vf < 1) then it's the yarn fibre volume...

Hi, It took me a while to track this down! It seems that the function which CTextile::GetFibreYarnVolumeFraction() calls to calculate the Vf of the individual yarns wasn't set up to use the number of fibres and their diameter. I've fixed this now and the code is on Github so you can access it if you...

Hi,
Setting up the fibre diameter and number of fibres should be sufficient. Would it be possible to share your whole script and then I can see if I can work out what the problem is?
Best wishes,
Louise

Hi, By data sheet I meant that of the tow. Presumably there is some data about the material that you are using. TexGen models the yarn as a solid but the information about the number of fibres and their diameter is used to calculate the area of fibre in any given cross section and hence to calculate...

Hi, You will need to use the data sheet and/or any samples of the fabric to get the yarn dimensions to put into your model. To generate the volume fraction information (ie to take into account the porosity) you need to put the fibre information into the yarn properties. You can either set them in yo...

Hi Mukesh, I'm afraid that I'm not an Abaqus expert. I think that you should be able to extract the stresses by interrogating the .obd file but you will need to either consult the Abaqus documentation or find someone who knows more about Abaqus to help you with this. Sorry not to be more help, Louise

Hi Rachel, Please could you zip your file and then attach that. You can't upload Python files on the forum. I tried to copy and paste your code into a file but it has lost all the indentations so doesn't work. All models in TexGen are created by specifying nodes in the yarn. If you look at any gener...

Hi, Sorry for the slow reply - I've been busy exam marking! The stl export basically exports the surface mesh (as you see it when you do an x-ray render). The error that you're seeing is from the surface mesh generation and will be to do with the complexity of the model rather than how you created i...

Hi,

Could you send an example of what you're doing and then I may be able to work out what is happening.

Kind regards,
Louise

HI,
Sorry for the very slow reply. Could you be more specific about what you are trying to do?
Thanks,
Louise

Hi, Just to clarify, have you used the bundled installation or the one which doesn't include the python libraries? The time I normally see completer error is if I've done a TexGen build but forgotten to install the new TexGen libraries into the folder that I'm running the TexGen exe from (usually my...

Hi,
I have to confess that I'm not sure about this one. I'll have to see if I can replicate the error. Does it work if your scripts are in the same folder as the TexGen installation?
I'm in the run up to the start of term so may not get to it immediately.
Best wishes,
Louise