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Tensile testing is the most common method employed to determine the mechanical strength of an object. It involves the application of uniaxial force to measure the performance of a test specimen, up to the point of it yielding or breaking, whether sharply or gradually. In simple terms, it is pulling something apart in a straight line and seeing how it changes.
In cases where pulling in tension to reach ultimate failure is not required, the tensile strength of an object can often be characterised by its elongation and relaxation properties, as in elastomers and springs.
The sample under test may be a specimen of raw material or a processed manufactured product. The specimen is usually held between 2 tensile grips and load is applied at a constant rate by a tension/compression tester fitted with a loadcell. Data is collected and can be plotted on a graph showing the curve of force/extension or stress/strain.
Calculations are typically performed on the data with results presented most commonly as:
Tensile testing is an important part of the design for ensuring product safety and integrity, as well as being an essential part of quality-control testing for consistency in manufacture and assembly.
Featured or equivalent test standards for Mecmesin solutions in this section