![]() For many materials not exhibiting a sudden decrease in force the elongation at fracture can be taken as the strain measured just prior to when the force falls below 10 % of the maximum force encountered during the test.ģ.1.3 lower yield strength, LYS - in a uniaxial test. (The stress-strain curve need not appear to be discontinuous.)ģ.1.2 elongation at fractimre-the elongation measured just prior to the sudden decrease in force associated with fracture. ![]() Additional terms being defined are as follows.ģ.1.1 discontinuous yielding-in a uniaxial test, a hesitation or fluctuation of force observed at the onset of plastic defor. ASTM E8/E8M-09 pdf free download.Standard Test Methods for Tension Testing of Metallic Materials.ĪSTM E8/E8M-09 cover the tension testing of metallic materials in any form at room temperature, specifically, the methods of determination of yield strength, yield point elongation, tensile strength, elongation, and reduction of area.ĪSTM A356/A356M Specification for Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walled for Steam Turbines ĪSTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products ĪSTM B557 Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products ģ.1 Definitions-The definitions of terms relating to tension testing appearing in Terminology E6 shall be considered as applying to the terms used in these test methods of tension testing.
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