Regarding taking resisting torsional moment of the beam from FE results

[Sakthiiitm]

I have a curved beam with shell elements, if I have to take the what is the torsional moment in each section what axis section force - shear should I take in Abaqus to find the shear in the top and bottom flange and multiple by their distance to get torsional moment. I have attached the image of the curved beam with coordinate axis for the reference.

If would be really helpful if someone could help me on this!

Thanks

 

[FEA way]

This reply should be applicable here at least to some extent:

https://www.eng-tips.com/viewthread.cfm?qid=523210

Knowing what I explained there, is it also clear to you in this case ?