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  2. Janka hardness test - Wikipedia

    en.wikipedia.org/wiki/Janka_hardness_test

    The Janka hardness test (English: / ˈ dʒ æ ŋ k ə /; [1] German:), created by Austrian-born American researcher Gabriel Janka (1864–1932), measures the resistance of a sample of wood to denting and wear. [citation needed] It measures the force required to embed an 11.28-millimeter-diameter (7 ⁄ 16 in) steel ball halfway into a sample of ...

  3. Hardness scales - Wikipedia

    en.wikipedia.org/wiki/Hardness_scales

    Scratch hardness. The Mohs scale of mineral hardness; The Vickers hardness test; The Brinell scale; The Janka hardness test; The Rockwell scale; The Durometer scale; The Barcol scale; The Leeb rebound hardness scale; The Rosiwal scale; The Meyer hardness test; The Knoop hardness test

  4. Hardness - Wikipedia

    en.wikipedia.org/wiki/Hardness

    Although hardness is defined in a similar way for most types of test – usually as the load divided by the contact area – the numbers obtained for a particular material are different for different types of test, and even for the same test with different applied loads.

  5. Indentation hardness - Wikipedia

    en.wikipedia.org/wiki/Indentation_hardness

    Brinell hardness test (HB) BHN and HBW are widely used [7] Knoop hardness test (HK), for measurement over small areas, widely used to test glass or ceramic material. [8] Janka hardness test, for wood; Meyer hardness test; Rockwell hardness test (HR), principally used in the USA. HRA, HRB and HRC scales are most widely used.

  6. Janka hardness - Wikipedia

    en.wikipedia.org/?title=Janka_hardness&redirect=no

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  7. Mechanical testing - Wikipedia

    en.wikipedia.org/wiki/Mechanical_Testing

    Janka hardness test, for wood; Meyer hardness test; 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 ...

  8. Hardness comparison - Wikipedia

    en.wikipedia.org/wiki/Hardness_comparison

    A variety of hardness-testing methods are available, including the Vickers, Brinell, Rockwell, Meyer and Leeb tests. Although it is impossible in many cases to give an exact conversion, it is possible to give an approximate material-specific comparison table for steels .

  9. Category:Hardness tests - Wikipedia

    en.wikipedia.org/wiki/Category:Hardness_tests

    Janka hardness test; K. Knoop hardness test; Korsunsky Work-of-Indentation Approach; L. Leeb rebound hardness test; M. Meyer hardness test; Meyer's law;