- Civil Lab Mechanical Lab Engineering Lab Equipments
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CAT NO: DIDACTICNLE-Export-056002
Shearing Force Apparatus- Engineering Lab Training Systems.
Features
Low cost, effective teaching
Self-contained
Bench mounted
Direct measurement of Shear Force
Loads and supports can be placed in
any position
Visual practical verification of the
concept of Shear Force
Allows investigation of stability and
influence lines
Reinforces concept of equilibrium of vertical forces & moments
Three year warranty
Range of Experiments
To comprehend the action of shear in a beam
To measure the shearing force at a section of a loaded beam, and to compare with a theoretical estimate
To study the definition of an influence line for shear force
Description
A
length of material supported horizontally and carrying vertical loads
is called a beam. The loading causes bending and transverse shearing.
The loads and reactions are the 'external' forces acting on the beam.
They must be in equilibrium. However, the strength of the beam depends
on 'internal' forces. This experiment demonstrates the nature of these
internal forces and their dependence on the external system of forces.
The
experimental beam is in two parts, joined by a pair of ball bearing
rollers running in flat vertical tracks. To develop the internal beam
forces at the section an underslung tension spring is used to resist the
bending moment, while an overhung spring balance provides the vertical
shearing force. Due to the mechanical arrangement, there must always be a
net downward load on the longer side of the split beam.
The beam
is simply supported on end bearings and several weight hangers can be
attached at any position on either side of the joint. A hinged metal
strip is available to simulate the loading pattern of a panelled girder
for a more advanced experiment on influence lines.
This equipment
is part of a range designed to both demonstrate and experimentally
confirm basic engineering principles. Great care has been given to each
item so as to provide wide experimental scope without unduly
complicating or compromising the design. Each piece of apparatus is
self-contained and compact. Setting up time is minimal, and all
measurements are made with the simplest possible instrumentation, so
that the student involvement is purely with the engineering principles
being taught. A complete instruction manual is provided describing the
apparatus, its application, experimental procedure and typical test
results.
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