In a cantilever beam, shear force at any section is equal to the sum of the loads between the sections and the free end. Bending moment at a given section is equal to the sum of the moments about the section of all the loads between the section and the free end of the cantilever.
A cantilever beam AB carrying a concentrated load W at the free and B (Figure 4.17) is considered. Any section x-x at a distance x from the free end is taken.
Fig. 4.17 Cantilever beam with point load at free end.
1. Shear Force
Shear force ...