The shear stress due to bending is always equal to zero at t

The shear stress due to bending is always equal to zero at the centroidal axis of the beam. False True

Solution

True.

The centroidal axis or the neutral axis is an axis in the cross section of a beam or shaft which is also the member which resists the bending along which there are no longitudinal stresses or strains.The first moment of the cross section about its neutral axis is zero in order to keep the beam in the static equilibrium. Therefore the neutral axis lies on the centroid of the cross section. Hence, shear stress the shear stress along the neutral axis is zero in case of bending.