Question - What is the bending moment (BM) & Shear force (SF) – Explain.
Answer -
A bending moment is the reaction induced in a structural element when an external force or moment is applied to the element causing the element to bend. The most common or simplest structural element subjected to bending moments is the beam.
Shear force is the force in the beam acting perpendicular to its longitudinal (x) axis. For design purposes, the beam’s ability to resist shear force is more important than its ability to resist an axial force. Axial force is the force in the beam acting parallel to the longitudinal axis.