ASTM D5587 Fabric Tear Strength Testing

ASTM D5587 fabric tear testing
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ASTM D5587 | Textiles | Tension Testing

ASTM D5587 is a testing specification that determines the tearing strength of textile fabrics by the trapezoid procedure using a recording constant-rate-of-extension-type (CRE) tensile testing machine. This test method applies to most fabrics such as woven fabrics, air bag fabrics, blankets, napped, knitted, layered, and pile fabrics.

Tear strength is the capacity of a material to withstand the tearing force required to propagate a tear after its initiation. The trapezoid tear produces tension along a reasonably defined course such that the tear propagates across the width of the specimen. Tear strength can be calculated as either the single-peak force or the multiple-peak forces based on the fabric type and the tearing action observed.

Before conducting ASTM D5587, it is important to read the entire specification in the relevant ASTM publication.

ASTM D5587 | Textiles | Tension Testing

  1. Prepare the trapezoid test specimens as described in the method.
  2. Set the distance between the clamps at 25 ± 1 mm (1 ±05 in). ADMET recommends the use of a scale or calipers to measure this distance.
  3. Zero the load and position.
  4. Adjust the grip faces such that the contact region on each grip is aligned vertically when fully closed. Any misalignment may cause erratic or skewed data.
  5. Clamp the trapezoidal fabric test sample in the upper and lower grips per the ASTM specification.
  6. Press Start on the controller and record the tearing force.
  7. When the crosshead has moved to produce approximately 6 mm (0.25 in) of fabric tear, record the single-peak force or multiple-peak forces.
  8. Stop the test after a total tear of 75 mm (3 in) has been achieved or the fabric has torn completely and return to the starting position.
Calculations:
  • Tearing Force
  • Tearing Strength

ASTM D5587 | Textiles | Tension Testing

ASTM D5587 Recommended Equipment
Testing System
Fixturing
Accessories
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