Learning Forum

[Evgenii_K]

Hello everyone again, I decided to check the normal and shear stresses in the beam. Created a cantilever beam, applied a load to its end, and performed a calculation. But in the analysis, the shear stresses did not converge. What is the accepted method for calculating shear stresses?

[peteroznewman]

You don't show the coordinate triad in your images so I don't know what is the correct plane to look for the shear stress.
What is the value of the maximum shear stress in the YZ plane and the XZ plane?

[Evgenii_K]

thanks for the answer peteroznewman
I checked the voltages in the YZ and XZ plane

[peteroznewman]

I don't think you have used the correct equation for shear stress in an I-beam.

[Evgenii_K]

yes peteroznewman I figured it out too, but I used the standard Shear Stress tool. Then my question is - which tool shows shear (correct)? What does the shear stress tool show?

[ErKo]

we need to set a keyopt under the beam: keyopt,typeids(1),4,2 (add it to the apdl command snippet shown below)
See help manual for this key option that gives both bending and torsion shear stress (by default it is only torsion).

So with that option, we get the results as shown below (with the max in the centre of the section):

[Evgenii_K]

Very grateful dear ekostson, thanks for the helpful advice peteroznewman!