Normale en schuifkracht

When a beam is subjected to different loads, internal forces are produced. These forces can be determined by considering an imaginary point on the beam and using the method of section.

The internal force that acts perpendicular to the cross-section of the beam is called the normal force or axial force, while the force that acts tangential to the cross-section is called the shear force.

These forces act in opposite directions on each segment and can be determined by applying the equilibrium equations.

Consider a cantilever beam OB with a varying load. Determine the normal and shear forces acting at the center of the beam.

These forces can be determined by using the method of section and analyzing forces on the segment AB of the beam.

Using the concept of similar triangles, the force at the center can be determined.

By drawing a free-body diagram and using the equilibrium equations, the normal and shear forces can be determined.