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Knowledgebase >

Yield Strength

1 Mins

Knowledgebase >

Yield Strength

The yield point, or yield strength is the point on a stress–strain curve where elastic behavior ends and plastic behavior begins. A more simplified definition is that Yielding means the start of breaking of fibers on the sample being tested. If a sample is being tested and the yield point has not been reached the sample will return to its original shape. However, once the yield point has been passed the sample will become permanently deformed. Stress-Strain curve analysis is a critical component of accurately measuring the yield point. United offers a wide range of equipment, including our DATUM software package which will help you perform accurate and repeatable yield testing procedures.

View our United Testing Systems machines here

United can help you with these and many other standards which require Yield Strength testing

ASTM D3039 – Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials
ASTM D412 – Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
ASTM D4761 – Standard Test Methods for Mechanical Properties of Lumber and Wood-Base Structural Material
ASTM D638 – Standard Test Method for Tensile Properties of Plastics
ASTM E8 – Tension Testing of Metallic Materials