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Tear Strength - ASTM D624
The force required to tear a specified test specimen divided by the specimen thickness.
This test provides a measure of resistance to tearing. Tear strength may also be used to illustrate the anisotropy of a material.
Testing is performed by pulling specimens apart using a tensile test machine. The maximum force required to tear a test specimen is used to calculate the tear strength of the Die A, B, and C specimens while the mean force is used for the T and CP specimens.
Specimen | Name | Diagram | Grip Separation | Test |
---|---|---|---|---|
Die A | Nicked Crescent | 500 mm/min (20 in/min) | ||
Die B | Nicked Tab End | 500 mm/min (20 in/min) | ||
Die C | Right Angle | 500 mm/min (20 in/min) | ||
T | Trouser | 50 mm/min (2 in/min) | ||
CP | Constrained Path | 50 mm/min (2 in/min) |