Learning Forum

[sa-aadat.parker]

When trying to import (File-import) there is no .k extension option. When I create a new Ls-Dyna analysis, it creates a  .wbpj file. I would expect a .k file.  

This is LS-DYNA 2022 R2 in Workbench. What am I missing? I am running on Linux 22.04.

[Ram Gopisetti]

Hi Sa-aadat Parker, You need to use "Write Input file" in the Workbench, so that it prompts you to save the .k file or .key file or look at the solver directory for the input.k file. 

Cheers, Ram  

[sa-aadat.parker]

Hello Ram, Thanks for the response but I can't find the "Write Input file" menu option.

[Reno Genest]

Hello Sa-aadat,

Why do you want to import a .k file into Ansys Workbench? Do you want to build a new model based on an existing model?

I don't think we can import a .k file in WB 2022R2 on Linux. This can be done on Windows (see below). Note that only the LS-DYNA solver is officially supported at 2022R2 and not the user interface on Linux:

https://www.ansys.com/content/dam/it-solutions/platform-support/ansys-2022r2-platform-support-by-application-product.pdf

You can build an LS-DYNA model in WB in Linux using the LS-DYNA system. If you double click on the Model branch, it will launch the Mechanical interface:

In Mechanical, you can write the input file:

But, because the UI is not fully supported at 2022R2 on Linux, you might see some crashes. We recommend using a Windows machine with WB LS-DYNA.

If you want to import the .k file in WB, you will have to find a Windows machine, install WB 2022R2 and import the .k file using an External Model system as follows:

If you want to run a .k file with the LS-DYNA solver on Linux, you don't need to import the .k file in Workbench. You can use command lines to run LS-DYNA directly in the Linux terminal. You will find more information here:

/forum/forums/topic/run-ls-dyna-in-hpc/

You can download the LS-DYNA solver for Linux here;

lsdyna.ansys.com

 

Let me know how it goes.

 

Reno.

[sa-aadat.parker]

Dear Reno,

 

Thanks for verifying it can't be imported in Workbench I have been trying to do that for a while. I am now using the terminal and LS-Dyna prepost with LS-Run. It is bundled with Workbench and I am satisfied with that.  I am running the LS-Dyna tutorial files which are .k files.

[Reno Genest]

Dear Sa-aadat,

Sounds good. LS-RUN is convenient and works well on Linux. There is a complete tutorial on LS-RUN here:

https://www.youtube.com/watch?v=ymkTJCefm30

You can also download the latest version of LS-PrePost (v4.9) here:

https://ftp.lstc.com/anonymous/outgoing/lsprepost/4.9/

The version bundled with WB is not the latest version of LS-Prepost, but it will do in most cases.

 

Reno.

[Benedikt Kohlhaas]

Hello, I am trying to import a *.key-file with a windows machine like indicated above (External Model --> LS-Dyna), but I am missing all boundary conditions... Any suggestions?

Thanks,

Benedikt