Laboratory:
Properties of Engineering Materials The purpose of using Rubber block is to measure the shear deformation of a rubber block and hence determine the modulus of rigidity (G).
A block of medium rubber (150*75*25) mm size has aluminum alloy stripes bonded to the two long edges. One strip has two fixing holes enabling this assembly to be fixed to a rigid vertical surface. The bottom end of the other strip is drilled for a load hanger while a small dial gauge indicates the position of the top end.