To extract bending moment output, firstly you have to request axial, shear, and moments ouput (SF1,SF2,SF3,SM1,SM2,SM3) for your model. These forces and moments are the integration of the shell stresses and they are given per unit length for the element.

Secondly, you need to define a section cut passing through the part for which you want to extract the resulting axial, shear, and moment.

Please try this and if you have any other question do not hesitate to ask

Good Luck

Dear Emad Salem,

Thank you so much for your complete response. I understood that I should define Section Forces for my Field Output in Step Module and after the analysis completed I should define section cuts through create free body cut and read the resultant force and moment from the viewport?

As always with displacement elements you should be cautious of the stresses as these may not be in equilibrium with the applied load unless the mesh is extremely well refined.  As such the integration of stresses across sections will lead to forces and moments that are also not generally in equilibrium with the applied load.

However, if you use nodal forces/moments then these should be in equilibrium and this is the method I would recommend.  You can try these suggestions on a simple model and then move to your real model.

This video explains how to get section forces and moments using ABAQUS 6.14

Hamid Fatemi