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  2. Shock (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Shock_(mechanics)

    Shock is a vector that has units of an acceleration (rate of change of velocity). The unit g (or g) represents multiples of the standard acceleration of gravity and is conventionally used. A shock pulse can be characterised by its peak acceleration, the duration, and the shape of the shock pulse (half sine, triangular, trapezoidal, etc.).

  3. G-Shock - Wikipedia

    en.wikipedia.org/wiki/G-Shock

    The GW-M5610 would spawn many variants, the most notable being the GW-5000 which was a steel cased screw-back variant like the original G-Shock but featured diamond like coating (dlc) on the case and caseback and the GW-S5600 which featured Casio's first application of carbon fibre in a watch strap along with the use of titanium in the caseback ...

  4. Toughness - Wikipedia

    en.wikipedia.org/wiki/Toughness

    Toughness is the strength with which the material opposes rupture. One definition of material toughness is the amount of energy per unit volume that a material can absorb before rupturing. This measure of toughness is different from that used for fracture toughness, which describes the capacity of materials to resist fracture. [2]

  5. Fracture toughness - Wikipedia

    en.wikipedia.org/wiki/Fracture_toughness

    Fracture toughness tests are performed to quantify the resistance of a material to failure by cracking. Such tests result in either a single-valued measure of fracture toughness or in a resistance curve. Resistance curves are plots where fracture toughness parameters (K, J etc.) are plotted against parameters characterizing the propagation of ...

  6. Charpy impact test - Wikipedia

    en.wikipedia.org/wiki/Charpy_impact_test

    In materials science, the Charpy impact test, also known as the Charpy V-notch test, is a standardized high strain rate test which determines the amount of energy absorbed by a material during fracture. Absorbed energy is a measure of the material's notch toughness. It is widely used in industry, since it is easy to prepare and conduct and ...

  7. MIL-STD-810 - Wikipedia

    en.wikipedia.org/wiki/MIL-STD-810

    MIL-STD-810 is maintained by a Tri-Service partnership that includes the United States Air Force, Army, and Navy. [2] The U.S. Army Test and Evaluation Command, or ATEC, serves as Lead Standardization Activity / Preparing Activity, and is chartered under the Defense Standardization Program (DSP) with maintaining the functional expertise and serving as the DoD-wide technical focal point for the ...

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