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ANSYS APDL

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Sadaqat Hussain

Civil/Environmental
Joined
Sep 9, 2022
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2
Location
US
Hi everyone!
I am working on a bridge model in Ansys Apdl. When i tried to applied stresses(Von misses) it shows error "Ansys apdl The request data S is not available. The PLNSOL command is ignored." And when i tried to import this Ansys (bridge.rst) file into UM(Universal Mechanism) software, it shows this error "Inadmissible DOF constraint UX found in node 1203. Remove all DOF constraints and repeat the calculation". i have attached the screenshot files.
Thank you.
 
 https://files.engineering.com/getfile.aspx?folder=01926d26-f96b-435e-9831-0c6250112fab&file=Ansys_Stress_loading_error.jpg
Hi Sadaqat,

What elements have you used for modeling? Check if that element has the output quantities (including S value) in the table form?

You may have to use the ETABLE command to retrieve the 'S' value.



Shiraz
Sr. Engineer
 
Hello Shiraz
Thank you for the response. I have successfully solved the above problem. I just added this code:

ESLN, s, 0,all
CM,ESTRS,ELEM ESEL,all ALLSEL,ALL

Then I select entities and desired nodes on the bridge. Nodes were also selected by NSEL and KSEL commands, but I selected them manually. To import into UM software, I used the UM,10,1,1,1 command.
Last time I used the Solid65 element, after that I changed the element type to Shell185.


 
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