Shear Force and Bending Moment:

Shear Force (S.F.)

Algebraic sum of all vertical forces at any section of beam to the right or left of the section is known as shear force.

Bending Moment (B.M.)

The algebraic sum of all moment of all forces acting to right or left of the section is called as bending Moment.

Shear Force (S.F.) and Bending Moment (B.M.) Diagrams

A Shear Force diagram is one, which shows the variation of shear force along the length of beam. And a bending moment diagram is one that shows the variation of bending moment along the length of beam.

Before drawing shear force and bending moment diagrams, we should know different types of beam, load and support.