2
$\begingroup$

I am starting to learn how to use ANSYS APDL. So I don't have much knowledge in the software.

I have modelled a cantilever beam (with beam188 elements) and the only load that i have applied was the self weight.

When I ask for the shear force diagram (element table) and plot the results, the SFD looks like this:

enter image description here

Shouldn't it be linear? What happened?

Improve this question
$\endgroup$
4
  • $\begingroup$ Out of curiosity, what are the units of stress as displayed? The min is -19600, but what units? $\endgroup$
    – wwarriner
    Mar 31 '16 at 0:57
  • $\begingroup$ -19600 is the shear force in Newtons! $\endgroup$
    – Marina Vendl Craveiro
    Apr 1 '16 at 2:36
  • 1
    $\begingroup$ Yes, it should be linear. It's hard to troubleshoot an FE model with a single image though. I'd suggest that you check all boundary conditions, maybe you've accidentally restrained some nodes? if you find nothing, maybe try to rebuild the model in a new file from scratch and see what you get. $\endgroup$
    – William S. Godfrey- S.E.
    Apr 1 '16 at 14:46
  • $\begingroup$ I second @WilliamS.Godfrey-S.E. , some DOFs seem missing. Try to plot the deformed structure, and also post the APDL script here, it should only be few lines of code $\endgroup$
    – hdrz
    Jul 30 '17 at 10:57
-1
$\begingroup$

Dear madam , pls make beam with keypoints and then do meshing with mesh tool and use smisc3 and 16 for bending moment and smisc 6 & 19 for shear force

Improve this answer
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.