Learning Forum

[amir.mb1377]

Hello

I installed the latest version of ls dyna. But for mat_197, which was changed in the 2021 update, unfortunately, this update is not included in ls prepost. How long will this update be considered?

[Reno Genest]

Hello Amir,

Please install the latest LS-PrePost V4.9.8-08Sep2022. The LS-PrePost that comes with the Ansys installation is not the latest one.

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

With the latest version, you should be able to have access to *MAT197:

 

Reno.

[amir.mb1377]

Hi Reno. For the latest version you say. IType=5 in it?

If Itype=5, FYRIM and DFRIM parameters will appear

[Reno Genest]

Hello Amir,

 

ITYPE=5 is still not available in the latest LSPP. Please use  a text editor to edit this option for now.

 

Reno.

[amir.mb1377]

Hello Reno. How can I send a message to the editor?

[Reno Genest]

Hello Amir,

 

Open the model (.k file) with a text  editor (Notepad, PSPad, etc.) and modify the *MAT_197 keyword; set  ITYPE=5 and add  the FYRIM and DFRIM options.

 

Reno.

[amir.mb1377]

Hello Reno

Thank you very much for your guidance. Can you just send an example of editing? Where should I add?

[Reno Genest]

Hello Amir,

 

I cannot send files via the forum. Give it a try and let me know how it goes. Please  consult  the LS-DYNA user manual for  the  keyword  format:

https://www.lstc.com/download/manuals

 

Reno.

[amir.mb1377]

Hello Reno

Ok

thank you very much

[Reno Genest]

Hello Amir,

In the manual, you can see that the FYRIM and DFRIM parameters are on card 8:

 

Your *MAT_197 keyword should  look like:

 

Reno.

[amir.mb1377]

Hello Reno. thanks a lot . So I have to add fyrim and dyrim according to the picture. And enter the desired parameters under it?

[Reno Genest]

Yes. Also, card 4 will have to be modified according the the manual when ITYPE=5. Please check the manual, because I may have  overlooked some details. All you need to know is in the user manual.

[amir.mb1377]

Hello Reno.

Thank you. You helped me a lot. good luck

[Reno Genest]

Hello Amir,

ITYPE=5 will be available in the DEV version of LSPP (V4.10) dated after September 16, 2022. Right now it is not available, but it should be in the next few days. Look at the following link:

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

 

Reno.

[amir.mb1377]

Hello Reno

So this week the new version of ls prepost will come

[amir.mb1377]

Hello Reno. This link you sent me. The last update of ls dyna is 09/14/2022. Isn't Ltype=5 in this?

[Reno Genest]

Hello Amir,

The Sep16 2022 version is now available. Download it and it should have ITYPE=5 in it. If not, please wait  for the next  release.

 

Reno.

[amir.mb1377]

Helo Reno 

Is this version of ls prepost compatible with ls Dyna R13? Can I run in it?

[Reno Genest]

 

Yes. You will have to download the LS-DYNA R13 solver:

https://lstc.com/downloader/page.html

username: user

password: computer

If you go File > Run LS-DYNA in LS-PrePost, it will take you to LS-RUN:

 

 

You can run your LS-DYNA model (.k file) using LS-RUN. Here is a video tutorial:

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

 

Reno.

 

[amir.mb1377]

Hello Reno

If I have a solid meshed element, how can I convert it to shell?

[Reno Genest]

Hello Amir,

Please start a new thread for this question as it is a different topic.

Thank you.

 

Reno.

[amir.mb1377]

Hello reno

Ok 

Thank you a lot