laceration strength

Tear Strength
Tear Strength

The performance of the use of textile products and textile materials depends mainly on how they react to the forces they are exposed to. Many different strength tests are applied to detect and analyze these behavior characteristics.

Some textile products require easy tearing. For example, the bandages. However, it is generally expected that all fabrics except these special purpose products will have high tear strength. In physics, tear strength refers to the force required to tear a fabric by pulling it by rotating it on a certain axis. Tear strength can also be described as: the resistive force required to initiate, maintain or enlarge a tear under conditions determined on a fabric. Tear strength tests are a type of test that is mostly applied to woven fabrics.

The yarns combined with the weaving process divide the tension and show a higher strength. If the yarns are easily displaced within the fabric, the tearing force does not tear the successive strands, but instead replaces the bundles of fibers that come together. Finishing processes that cover the fabrics and prevent this movement of the yarns reduce the tear strength. A fabric may have high breaking strength, but low tear strength.

The standards based on tear strength tests are as follows:

  • TS EN ISO 13937-1 Textile - Tear properties of fabrics - Part 1: Determination of tear force by ballistic pendulum method
  • TS EN ISO 13937-2 Textile - Tear properties of fabrics - Part 2: Determination of tear strength of test specimens in the form of pants (single tear method)
  • TS EN ISO 13937-3 Textile - Tear properties of fabrics - Part 3: Determination of the tear strength of wing-shaped test specimens (single tear method)
  • TS EN ISO 13937-4 Textiles - Tear properties of fabrics - Part 4: Determination of tear strength of tongue-shaped test specimens (double tear test
  • TS EN ISO 9073-4 Textile - Test methods for nonwovens - Part 4: Determination of tear resistance
  • BS 4303 Method for determination of tear resistance of woven fabrics by wing-rip technique
  • Tear Strength of ASTM D2261 Woven Fabrics