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ASTM D2256 | Textiles | Tension Testing

ASTM D2256 is a testing standard designed to measure the tensile properties of threads and yarns. This test method is by far the most common specification that is followed for determining the breaking strength, elongation, and energy of threads, yarns, or other single strand textiles.  This is a relatively simple tensile test whereby the material is pulled at a constant rate of speed until it breaks. The specimen can be tested in three different physical configurations: straight, knotted, or looped.

Before conducting ASTM D2256, it is important to read the entire specification in the relevant ASTM publication.

ASTM D2256 | Textiles | Tension Testing

  1. Prepare the specimens as described in the method.
  2. Load the sample into pneumatic or manual rope grips. Gauge length (length of thread between grips) is specified in the testing standard.
  3. Start the test the rate specified in the standard until failure.

Calculations:

  • Breaking Force
  • Breaking Tenacity
  • Elongation
  • Initial Modulus
  • Chord Modulus
  • Breaking Toughness

ASTM D2256 | Textiles | Tension Testing

ASTM D2256 | Textiles | Tension Testing

ASTM D2256 Recommended Equipment
Testing System
Fixturing
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