CAT NO: DIDACTICNLE-Export-056014
Rubber In Shear Apparatus Engineering Lab Training Systems.
Features
Low cost, effective teaching
Self-contained
Wall mounted
Range of pivot angles supplied
Optional bearings available
Determination of modulus of rigidity and Poissons Ratio
Three year warranty
Range of Experiments
To determine the variation of deflection with applied load
To investigate the relationship between shear stress and shear strain
To find the modulus of rigidity of the rubber block
Description
Rubber
blocks in shear force are often used on engine and in equipment
mounting to isolate vibrations. They do this by absorbing shock energy
by deforming. This deformation leads to a decrease in cross-section as
the block lengthens, an effect described by Poisson's Ratio. After this
experiment, students will understand the behaviour of a very flexible
material such as rubber. Rubber is interesting in that the lay person
regards it as an 'elastic' material. In engineering terms it is not as
'elastic' as steel and often exhibits a high degree of hysteresis.
A
rubber block 150 x 75 x 25mm is bonded to two aluminium alloy plates.
One plate is screwed to a wall, whilst the other has a shear load
applied by a loaded weight hanger. A dial gauge measures the deflection
of the block.
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.