ASTM D2256 PDF

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ASTM D – Tensile Properties of Yarns by the Single Strand Method. Scope: This test is used to determine the Breaking Force and Elongation of yarns. This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D13 on Textiles. ASTM D is by far the most common specification that is followed for determining the breaking strength, elongation, and energy of single strand textiles.

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ASTM D2256 Tensile Properties of Yarns

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This standard specifies the method for determining the tensile properties of yarns using the single-strand method, and helps determine the quality of the raw material while aiding in quality control of the finished product.

To determine tensile strength and elongation at break, specimens are clamped in the appropriate grips and pulled at a constant rate until failure occurs. The test results can be used to determine the tenacitymodulusand strength of the material. Typically used for these tests are single column or dual column tabletop universal testing machines that are configured with capstan or pneumatic cord and yarn gripswhich are highly effective at reducing clamping stress applied to the specimen and providing essential specimen alignment.

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Pneumatic cord and yarn grips provide a convenient method for clamping fiber, cord, yarns and fine wires to reduce the problem associated with testing these materials.

A specially designed horn with a smooth finish and a contoured surface with a graduated cam allows for easy loading and a stress reduced clamping area on the specimen. The clamping mechanism can be activated either automatically or through a foot switch. This allows hands-free grip operation enabling the specimen to be held with both hands, for easy loading.

ASTM D Tensile Yarns Testing Equipment

Pneumatic cord and yarn grips provide selectable clamping force to accommodate different materials and excellent follow-up action which compensates for decay of the holding force due to specimen creep.

These are designed to permit predetermination of specimen length, and allow quick, convenient loading. Instron, a leading provider of testing equipment designed to evaluate the mechanical properties of materials and d22256, offers an easy solution designed specifically to overcome the problem of premature failure for industrial textile fibers — including Aramid and UHMwPE. They are designed with standard and optional features that increase testing efficiency and improve the testing experience for the operator.

Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience. Discover simpler and smarter testing with features such as s2256 test methods, QuickTest in seconds, enhanced data exporting: Users of previous versions of software such as Bluehill 2 and Bluehill 3 can easily upgrade to the newest version of Bluehill.

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Glossary of Materials Testing Terms. Contact Us View Accessories Catalog. Description Literature Contact Us This standard specifies the method for determining the tensile d22566 of yarns using the single-strand method, and helps determine the quality of the raw material while aiding in quality control of the finished product.

The challenges of testing to this standard are: Reporting calculations in compliance x2256 the standard Specimen gripping Instron’s Solution: Bluehill Universal Brochure Bluehill Universal Software is built from the ground-up for touch interaction and an intuitive user experience.

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ASTM D Tensile Properties of Yarns by Single Strand Method – Instron

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