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ISO 16808
M00000172
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ISO 16808 1st Edition, August 1, 2014 Metallic materials - Sheet and strip - Determination of biaxial stressstrain curve by means of bulge test with optical measuring systems
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Description / Abstract:
This International Standard specifies a method for determination
of the biaxial stress-strain curve of metallic sheets having a
thickness below 3 mm in pure stretch forming without significant
friction influence. In comparison with tensile test results, higher
strain values can be achieved.
NOTE In this document, the term "biaxial stress-strain curve" is
used for simplification. In principle, in the test the "biaxial
true stress-true strain curve" is determined.