SHEAR AND TENSION OR COMPRESSION BIAXIAL MATERIAL TESTING FIXTURE

摘要

The present invention relates to an S-shape shear and tension or compression biaxial material testing fixture which can cover the full envelope of shear-axial loading conditions. The biaxial testing fixture consists of two tensile load applying fork-lugs, two boomerang-shape arms and a couple of specimen holders connected to a centralized test specimen. It can be used for testing mechanical properties of wide range of brittle or ductile materials. The novel testing fixture is a simple and inexpensive fixture that may be simply attached to a universal test machine capable of only uniaxial tensile loading in order to provide biaxial deformation at different shear to axial ratios. The different ratios are provided by selecting different attachment points on the boomerang-shape arms.