The transverse load P will produce a shear force V in the positive y direction on a mathematical cut through the beam at point “a”. This shear force is directly responsible for the shear stress τ on ...

In this video we explore bending and shear stresses in beams. A bending moment is the resultant of bending stresses, which are normal stresses acting perpendicular to the beam cross-section.

Focus, in particular, on the deflection at the right end of the beam, as seen below. Here, you can easily see how the laminae slide with respect to each other in the absence of shear stress between ...