Experimental apparatus for unsymmetrical bending and shear-centre determination of cantilever beams

A cantilever beam clamped in a rotating chuck — with an angular scale and an adjustable load-eccentricity — produces on demand pure symmetrical bending, pure unsymmetrical bending, or combined bending-and-torsion. Two dial gauges record the horizontal and vertical components of the free-end deflection. A set of three cross-sections (I, L, U) lets the student build Mohr's circle of the second moments of area from measured data, locate the shear centre of the U-profile, and observe the effect of shear flow.