Abstract:
A solid rubber cylinder with metal end plates fractured in the rubber
when a torsional deformation was applied 'which corresponded to a shear angle
of 56° on the cylinder surface. The height of the cylinder was maintained
accurately constant during the deformation. A comparatively smooth fracture
surface was created in a direction perpendicular to the principal tensile
stress and a rough surface was created perpendicular to the principal
compressive stress. The markings on the smooth surface have some feature
similar to a cleavage-type failure in a crystalline material.
