.k (ls-dyna) and .unv format not available !

NLeMaout commented 4 years ago

Hello, Thanks for great jobs. It's not really an issue but I don't know how to post it corectly here.... These both familiar format is not management by module. Could you include it for next update ? Thank you ! Nicolas LM

nschloe commented 4 years ago

Hi Nicolas, thanks for the bringing this to attention.

Someone else already requested unv support (https://github.com/nschloe/meshio/issues/466), but ls-dyna is something I had never heard of before.

shannonjryan commented 4 years ago

Hi Nicolas, thanks for the bringing this to attention.

Someone else already requested unv support (#466), but ls-dyna is something I had never heard of before.

LS-DYNA is an explicit structural solver from ANSYS (http://www.lstc.com/products/ls-dyna OR https://www.ansys.com/products/structures/ansys-ls-dyna) but it has a different text-based format for geometry and meshing files.

nschloe commented 2 years ago

To implement, I need a format specification or at least a number of LS-Dyna files so I can guess my way through. Feel free to reopen with such.

yurynovozhilov commented 5 months ago

Hi Niko!

LS-DYNA has a mesh format similar to Abaqus and Nastran. In the official documentation, the model format is described under "DESCRIPTION OF KEYWORD INPUT". Nodes are described in "NODE" and elements in "ELEMENT". Link to official documentation. https://ftp.lstc.com/anonymous/outgoing/web/ls-dyna_manuals/R15/LS-DYNA_Manual_Volume_I_R15.pdf

A large number of examples of models are available at dynaexamples.com.

And here is the documentation and source code for Ansys' PyPrimeMesh bibilot method. This method allows writing meshes in LS-DYNA format https://prime.docs.pyansys.com/version/dev/api/_autosummary/ansys.meshing.prime.FileIO.export_lsdyna_keyword_file.html https://github.com/ansys/pyprimemesh/

-- All best Yury

nschloe / meshio

.k (ls-dyna) and .unv format not available ! #607