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Textile testing is the process of measuring the properties and performance of textile materials—textile testing includes physical and chemical testing of raw materials to finished products. Textile testing assists textile production in selecting various types of fibers and their transformation into yarn , fabric, and finished goods such as ...
Tensile testing, also known as tension testing, [1] is a fundamental materials science and engineering test in which a sample is subjected to a controlled tension until failure. Properties that are directly measured via a tensile test are ultimate tensile strength , breaking strength , maximum elongation and reduction in area. [ 2 ]
Tensile & shear tester – tensile, shear; Pure bending tester – pure bending; Compression tester – compression; Surface tester – surface friction and roughness; The evaluation can include measurement of the transient heat transfer properties associated with the sensation of coolness generated when fabrics contact the skin during wear.
The test method evaluates the thermal resistance and water vapor permeability of fabrics, which bear on the garment's comfort. [115] [116] ISO 11092:2014 (the test for physiological effects — Test for measuring thermal resistance and water-vapor resistance) [117] ASTM F1868 (test for measuring thermal and evaporative resistance) [118]
gr/yard: Grains per yard of yarn. Gr/yard is a direct measure of linear density, but is rarely used in the modern textile industry. ECC or NeC or Ne (English Cotton Count): The number of 840 yd lengths per pound. ECC is an indirect measure of linear density. It is the number of hanks of skein material that weighs 1 lb.
A diametral compression test involves applying a stress load or force to the point where a material object is split in half (down the diameter of the object). [1] This test indirectly measures the tensile property of a material object, as the molecules of the material are pushed apart in opposite directions, similar to what happens to molecules in a direct tensile strength test.
The ultimate tensile strength of a material is an intensive property; therefore its value does not depend on the size of the test specimen.However, depending on the material, it may be dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.
Compressive strength is a limit state of compressive stress that leads to failure in a material in the manner of ductile failure (infinite theoretical yield) or brittle failure (rupture as the result of crack propagation, or sliding along a weak plane – see shear strength). Tensile strength or ultimate tensile strength is a limit state of ...
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