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Tensile Testing of a Steel Coupon

This video illustrates the process of testing a steel coupon specimen in tension to determine material properties that are commonly used in structural engineering. A specimen is tested to failure and the data is analyzed to determine the yield stress, tensile strength or ultimate strength, the modulus of elasticity, and the percent elongation at failure. ASTM A370 “Standard Test Methods and Definitions for Mechanical Testing of Steel Products” ASTM E8 “Standard Test Methods for Tension Testing of Metallic Materials” Keywords: A572 Grade 50, structural steel, high-strength low-alloy steel 0:00 - Introduction 0:24 – Anatomy of a Universal Test Frame 2:57 – Measurement of Stress and Strain 3:40 – Elastic Response, Yield Point, and Yield Plateau 5:06 – Yield Plateau and Onset of Strain Hardening 5:57 – Tensile Strength, Necking, and Rupture 7:42 – Video at 10x Speed 8:09 – Determination of Percent Elongation at Failure 8:48 – Determination of the Elastic Modulus 9:36 – Determination of the Yield Stress 9:57 – 0.2% Offset Yield Stress 10:38 – Determination of Tensile Strength