Geotextile
trapezoidal tearing strength
An outline of an isosceles trapezoid is marked on a rectangular specimen and cut. A small tear is introduced on one side of the specimen. The nonparallel sides of the trapezoid marked on the specimen are clamped in parallel jaws of a tensile testing machine. The separation of the jaws is initiated and increased so the tear propagates across the specimen. The force is measured throughout the test.
10 machine direction 10 cross machine direction
3" x 8"
trapezoidal tear, tearing
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