Tensile stress test (ASTMD-IV)

A strip of material for use in a tensile testing machine. The dimensions of the test strip(i don't have the exact ASTM D reference number in front of me) are standardised so the tensile properties can be compared with other materials. The machine grips either end of the strip and pulls the grippers apart at constant speed, whilst measuring the force required, this is usually done until the strip is destroyed (unless you want to look at elastic properties etc).

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