Question

Determine the internal normal force, shear force, and moment at point d

Answer 1

internal normal force: forces acting on objects that are sliding smoothly along the surface that gives rise to the normal force perform no work, since the motion will always be parallel to the surface and hence perpendicular to the normal force.


shear force:  Force acting on a substance in a direction perpendicular to the extension of the substance, as for example the pressure of air along the front of an airplane wing. Shear forces often result in shear strain. Resistance to suchforces in a fluid is linked to its viscosity. Also calledshearing force.