Learning Forum

[Mortaza]

Hello, I want to model an orthotropic composite cylindrical shell in the Ansys APDL command. How can I define the element coordinate system with orientation all over the shell, like rosette and orientation in ACP of ansys workbench?

[Erik Kostson]

Hi

See the esys command in the help manual.

Some post that might help also:

/forum/forums/topic/rotating-esys-in-a-section-in-apdl-around-element-center-points/

If you are not able to open the links, refer to this forum discussion: How to access the ANSYS Online Help

Guidelines for Posting on Ansys Learning Forum

Hope that helps

[Mortaza]

 

Yes, it worked. Initially, I established an appropriate local coordinate system using the “LOCAL” command. Subsequently, I assigned this system to the element’s coordinate system using the “ESYS” command.

Thank you.

 

[Govindan Nagappan]

Hi Mortaza,

You can use sectype and secdata commands.

Check command reference guide for more details:

SECTYPE (ansys.com)

SECDATA (ansys.com)

Example:

sectype,3,shell  
secdata,0.2,2,45                            ! thickness, material, theta
secoff,top

You can use emod to modify the esys

emod,1,esys,13    

 

VM82 has layered elements, but this example there is no modification to ESYS - VM82 (ansys.com)