008 Asymmetric Cross-Section Partially Plastic

In the previous video, the elastic and plastic bending moment was determined.

1. Determine the bending moment that the compressive flange yields. If the bending moment applied to the shown cross-section is 125kN.m:
2. Determine the depth of the cross-section, which is elastic.
3. What is the maximum compressive stress on the cross-section?

P.S. Assume that the bending moment applied to the cross-section is positive. Link to the description and detailed solution notes: Download