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Shearing Force Apparatus (SMT-MM-07)
Determination of shear force and bending moment on
beam mounted on 2 supports.
Measurement of shear force and bending moment in
beam by low-friction hinge with 2 degrees of freedom.
Position of hinge at 1/3 span.
2 bearing supports.
Loading of beam by 1 to 3 point loads.
Force gauges to indicate shear force and determine
Bending moment determined by force measurement
and lever arm.
Adjuster nuts for horizontal alignment of beam.
Steel rule to determine positions of point loads.
Statics observes the effect of forces on a rigid body, ignoring any possible deformations
which may occur in the process. The forces are in equilibrium. A simple example is a statically
determinate bearing-mounted beam subjected to point loads. The reactions are determined
from the conditions of equilibrium. To investigate the effect of the point loads in the beam,
it is notionally split into two segments. Applying the method of sections, the internal forces
and moments are plotted onto the two segments and calculated by way of conditions of
equilibrium. SMT-MM-07 includes a beam mounted on two supports. The beam is cut at one
point. At that point there is a low-friction hinge with two degrees of freedom. Two force
gauges determine the internal reactions to the externally applied forces at the section. The
shear force is recorded and displayed directly by a force gauge.