Learning Forum

[dongsuk.kim]

Hello ANSYS Community,

I am working on a project where I need to visualize the principal stress with the largest absolute value in ANSYS Mechanical. I have calculated the principal stresses and used APDL to determine which principal stress has the largest absolute value. However, I am having trouble displaying this result directly in Mechanical.

I have tried using the Commands (APDL) object to calculate and store the results, but I am unsure how to make these results accessible in Mechanical for visualization. Specifically, I would like to create a contour plot of the principal stress with the largest absolute value.

Here is a brief overview of what I have done so far:

1. Used APDL to calculate the principal stress with the largest absolute value.
2. Stored the results in a parameter or named selection.
3. Attempted to create a user-defined result in Mechanical to visualize these results.

Could someone please guide me on how to properly visualize these APDL-calculated results in Mechanical? Any help or suggestions would be greatly appreciated.

Thank you in advance for your assistance!

PS. Below is the snippet Command I put in Solution.

/POST1

SET,LAST

*DIM,LARGEST_SIG,ARRAY,NUMNP  ! Create an array to store LARGEST_SIG for each node

*DO,I,1,NUMNP  ! Loop over all nodes

  *GET,S1,NODE,I,S,1,PRIN  ! Get the first principal stress

  *GET,S3,NODE,I,S,3,PRIN  ! Get the third principal stress

  *IF,ABS(S3),GT,ABS(S1),THEN

    LARGEST_SIG(I) = S1

  *ELSE

    LARGEST_SIG(I) = S3

  *ENDIF

*ENDDO

[Subodh Adake]

Hello,

I would suggest trying out a user-defined result with the following expression: max(abs(s1),abs(s3)) in mechanical instead of going for APDL commands.

Regards,

Subodh

[dongsuk.kim]

Hello, Subodh

Thank you for the answer. I want to let it display the value itself instead of the absolute value so I am trying to implement using APDL. Would you help with APDL code?

regards,

Dongsuk