lõikamisjõu

Lõikamisjõud refers to the internal forces acting within a body when it is subjected to shear stress. Imagine a beam that is supported at both ends and has a load applied in the middle. This load causes the beam to bend, and within the beam's material, there are forces that resist this bending and the tendency for one part of the beam to slide past another. These internal resisting forces are known as lõikamisjõud.

Specifically, lõikamisjõud is the sum of the internal shear forces acting perpendicular to a cross-section of a structural member at a particular point along its length. It is a measure of how the material is resisting the tendency of the applied forces to cause it to shear or slide apart. This force is crucial in structural engineering for designing beams, columns, and other components that will experience bending or twisting.

The distribution of lõikamisjõud within a structure is not uniform. It varies depending on the type of loading and the geometry of the member. For a simply supported beam with a concentrated load at the center, the lõikamisjõud is maximum at the supports and decreases linearly to zero at the point of load application. Understanding and calculating lõikamisjõud is essential for ensuring the structural integrity and safety of buildings, bridges, and various mechanical components, preventing failure due to shear.