MEASUREMENT OF TENSILE PROPERTIES OF METALLIC FAILS

A fixture has been developed for testing thin specimens under uniaxial tension. The fixture consists of two cantilever beams with strain gau ges attached to them close to their fixed ends. The displacement of on e beam is used to measure the force and the difference in the displace ments of the beams is used to measure the sample displacement. The ten sile properties of 0.025 mm by 1.25 mm by 5 mm iron-nickel specimens w ere measured. The tensile plastic yield point of the specimens was obs erved to be 1.4 GPa and the total elongation to failure turned out to be five percent and eight percent, for the two tested specimens.