A simply supported beam with two equal forces applied equidistant from the supports is cal...

A simply supported beam with two equal forces applied equidistant from the supports is called four-point bending. This loading arrangement is commonly used for testing beams in a laboratory.

(a) Determine the shear and moment as functions of position. Express your answers in terms of parameters such as P, L, etc. Draw the shear and moment diagrams.

(b) Comment on any interesting features the shear and moment display in the region between points B and C.

Figure P8.32