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| | | | | | | | | | | | | | | | | | Zw/ck # Roell | | | | | | | | | | Overview of Zwick extension measurement systems The selection of suitable extensometers depends upon the test results to be determined, and on the corresponding test standard. The following tables indicate these criteria and their dependencies to one another. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Test results: | Norm | Incremental reduction | in width monitor | Analog reduction in width monitor | Analog clip-on extensometer | Incremental clip-on extensometer | Biaxial incremental | clip-on extensometer | Macro extensometer | multiXtens | Longstroke extensometer | | | | Plastics and elastomers Poisson's ratio | ISO 527 | | | • | | | | | • | | | | | | Tensile modulus | ISO 527 | | - | - | • | • | | - | • | • | - | | | | Compression modulus | ISO 604 | | - | - | • | • | | - | • | • | - | | | | Flexure modulus | ISO 178 | | - | - | - | - | | - | • | • | - | | | | Tensile creep modulus | ISO 899 -1 | | - | - | • | • | | - | • | • | • | | | | Flexure creep modulus | ISO 899 -2 | | - | - | - | - | | - | • | • | - | | | | 3.5% Flexural yield strength Flexure - Strain at break Yield strain | ISO 178 ISO 178 ISO 527 ISO 37, DIN 53504 | | - | - | - | o | | - | • • • | • • • • | • • | | | | Stress at X% strain | ISO 527 | | - | - | o | o | | - | • | • | • | | | | Reference values | ISO 37, DIN 53504 | | - | - | - | - | | - | - | • | • | | | | Strain at tensile strength | ISO 527 ISO 37, DIN 53504 | | - | - | o | o | | - | o | • • | • • | | | | Strain at tensile strength Strip specimen | ISO 527 -3 | | - | - | - | - | | - | o | • | • | | | | Strain at break | ISO 527 ISO 37, DIN 53504 | | - | - | - | o | | - | o | • • | • | | | | Strain at break, strips | ISO 527 -3 | | - | - | - | - | | - | o | • | • | | | | Nominal strain | ISO 604 ISO 527 | | - | - | - | - | | - | - | - | - | | | | Metals r-values n-value | ISO 10113 ISO 10275 | | • | • | - | • • | | • • | • • | • • | • | | | | E-Modulus | ISO 6892, EN 10002-1 | | - | - | • | • | | - | ((•)) | • | - | | | | Compression modulus | ISO 50106 | | - | - | • | • | | - | ((•)) | • | - | | | | Flexure modulus | ISO 7438, DIN 50,111 | | - | - | - | - | | - | • | • | - | | | | Hysteresis | ISO 6892, EN 10002-1 | | - | - | - | • | | • | • | • | - | | | | Upper yield point | ISO 6892, EN 10002-1 | | - | - | - | • | | • | • | • | - | | | | Lower yield point | ISO 6892, EN 10002-1 | | - | - | o | • | | • | • | • | - | | | | Strain at break | ISO 6892, EN 10002-1 | | - | - | - | - | | • | • | • | - | | | | Yield strain | ISO 6892, EN 10002-1 | | - | - | o | • | | • | • | • | - | | | | Stress at x% strain | ISO 6892, EN 10002-1 | | - | - | o | • | | • | • | • | - | | | | Strain at tensile strength | ISO 783 | | - | - | o | • | | • | • | • | - | | | | Proof stress x | ISO 783 | | - | - | o | • | | • | • | • | - | | | | Proof stress at total strain | ISO 783 | | - | - | o | • | | • | • | • | - | | | | Uniform elongation | ISO 6892, EN 10002-1 | | - | - | - | • | | • | • | • | - | | | | | | | | | | | | | | | | | | | | | | | | | | | 8 | | | | | | | | | | | | | | | | | |
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