Tear Resistance Tester For Tear Testing

Most tear resistance tests are performed statically and commonly take one of three forms. These forms differ from one another in the configuration and preparation of the test sample, the grip placement, and the rate of testing.

The first form is referred to as the trouser shape tear test and involves a rectangular sample that has a cut down the middle of one half of the sample so that two legs are formed and the sample resembles a pair of trousers. Each leg is then placed into one of the test grips and is then pulled apart so that the tear continues down the middle of the sample.

The second form is the tongue tear test and requires that the sample have a tab cut in the middle. This tab is cut so that so that it is separated the rest of the sample on the bottom and sides but not the top. The tab is then placed in the top grip while the rest of the sample is placed in the bottom grip. As the top grip is moved upward the tab is pulled so that the cuts on both sides are extended upward to the top of the sample and the tab is eventually pulled free leaving a rectangular piece in the top grip and a “U” shaped piece in the bottom.

Finally in the case of the trapezoid tear test the test sample is cut into the form of an isosceles trapezoid with a small cut made in one side. The sample is then loaded into the test fixture so that the tear made by the cut will propagate as the grips move apart. Generally the sample is orientated so the tear extends horizontally.

Tear resistance tester for tear testing:
The Digital Elmendorf Tearing Tester is using Elmendorf method to determine the tear force of textile fabrics which requires to propagate a single-rip tear of defined length from a cut in a fabric when a sudden force is applied. Test range is 200-32000CN, while the impact force is corresponding to the specific pendulum. They determine ballistic tearing strength by propagating a single-rip tongue-type tear starting from a cut in a sample. The design is much user-friendly with wide range to meet different test and standards.
For more information about our testing instrument, please contact

·website:http://www.qinsun-lab.com/

· Phone :+86-21-6780 0179

· E-mail :info@qinsun-lab.com

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