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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 ]
Schematic and dimensions of a compact tension specimen. A compact tension specimen ( CT ) is a type of standard notched specimen in accordance with ASTM [ 1 ] and ISO [ 2 ] standards. Compact tension specimens are used extensively in the area of fracture mechanics and corrosion testing, in order to establish fracture toughness and fatigue crack ...
English: The video illustrates an experimental investigation performed on steel samples, i.e. tensile steel testing. It is to be noted that the video was obtained using the pictures shot during the test, and the test was not performed that fast. results are shown in the end in terms of stress-strain curves for each of the three tested steel samples.
Nevertheless, this strain is a meaningful indication of the “ductility” of the metal – more so than the commonly-used “nominal strain at fracture”, which depends on the aspect ratio of the gauge length of the tensile test-piece [3] – see the article on ductility.
The test method for conducting the test usually involves a specified test fixture on a universal testing machine. Details of the test preparation, conditioning, and conduct affect the test results. The sample is placed on two supporting pins a set distance apart. Calculation of the flexural stress
Although similar, the specification for Almen strip dimensions of the same type slightly vary from one company/organization to another. The Almen strips are made from plain carbon steel SAE 1070 and have hardness about 45 HRC. This test is widely used and the requirements for check are specified in standards.
Properties that are directly measured via a tensile test are the ultimate tensile strength, maximum elongation and reduction in cross-section area. From these measurements, properties such as Young's modulus , Poisson's ratio , yield strength , and the strain-hardening characteristics of the sample can be determined.
Original file (SVG file, nominally 1,100 × 575 pixels, file size: 19 KB) ... The following page uses this file: Tensile testing; Global file usage.
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