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  2. Tensile testing - Wikipedia

    en.wikipedia.org/wiki/Tensile_testing

    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 ]

  3. File:Tensile test - steel sample.ogv - Wikipedia

    en.wikipedia.org/wiki/File:Tensile_test_-_steel...

    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.

  4. Extensometer - Wikipedia

    en.wikipedia.org/wiki/Extensometer

    Camera image of a video extensometer measuring two line markers. A video extensometer is a device that is capable of performing stress/strain measurements of certain materials, by capturing continuous images of the specimen during test, using a frame grabber or a digital video camera attached to a PC. [2]

  5. Mechanical testing - Wikipedia

    en.wikipedia.org/wiki/Mechanical_Testing

    Rockwell hardness test (HR), principally used in the USA; Shore durometer hardness, used for polymers; Barcol hardness test, for composite materials; Tensile testing, used to obtain the stress-strain curve for a material, and from there, properties such as Young modulus, yield (or proof) stress, tensile stress and % elongation to failure ...

  6. Kawabata evaluation system - Wikipedia

    en.wikipedia.org/wiki/Kawabata_Evaluation_System

    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.

  7. Necking (engineering) - Wikipedia

    en.wikipedia.org/wiki/Necking_(engineering)

    In engineering and materials science, necking is a mode of tensile deformation where relatively large amounts of strain localize disproportionately in a small region of the material. The resulting prominent decrease in local cross-sectional area provides the basis for the name "neck".

  8. Split-Hopkinson pressure bar - Wikipedia

    en.wikipedia.org/wiki/Split-Hopkinson_pressure_bar

    The Hopkinson pressure bar was first suggested by Bertram Hopkinson in 1914 [1] as a way to measure stress pulse propagation in a metal bar. Later, in 1949 Herbert Kolsky [2] refined Hopkinson's technique by using two Hopkinson bars in series, now known as the split-Hopkinson bar, to measure stress and strain, incorporating advancements in the cathode ray oscilloscope in conjunction with ...

  9. Preload (engineering) - Wikipedia

    en.wikipedia.org/wiki/Preload_(engineering)

    It is also used in testing a specimen, for a process where the crosshead moves to load the specimen to a specified value before a test starts. Data is not captured during the preload segment. When tensile specimens are initially placed into testing grips, they can be subjected to small compressive forces. These forces can cause specimens to ...