bending moment theory

Bending moment theory describes how a beam or structure experiences internal forces when subjected to external loads, causing it to bend or flex. When a load is applied, it creates a turning effect (moment) around a point or section, inducing internal stress that resists the bending. The bending moment varies along the length of the structure, depending on the type and location of the load. Engineers use this theory to analyze and design structural elements so they can safely carry loads without excessive bending or failure. Essentially, it helps predict how structures will deform under various forces.