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  2. Wear coefficient - Wikipedia

    en.wikipedia.org/wiki/Wear_coefficient

    The wear rate per unit sliding distance in the transient wear regime decreases until it has reached a constant value in the steady-state wear regime. Hence the standard wear coefficient value obtained from a volume loss versus distance curve is a function of the sliding distance.

  3. Wear - Wikipedia

    en.wikipedia.org/wiki/Wear

    The wear coefficient is a physical coefficient used to measure, characterize and correlate the wear of materials. ... Wear coefficientcoefficient used in physics ...

  4. Abrasion (mechanical) - Wikipedia

    en.wikipedia.org/wiki/Abrasion_(mechanical)

    The Archard equation is a simple model used to describe sliding wear and is based on the theory of asperity contact. [1] = where: Q is the total volume of wear debris produced K is the wear coefficient W is the total normal load L is the sliding distance H is the hardness of the softest contacting surfaces

  5. Archard equation - Wikipedia

    en.wikipedia.org/wiki/Archard_equation

    The Archard wear equation is a simple model used to describe sliding wear and is based on the theory of asperity contact. The Archard equation was developed much later than Reye's hypothesis [] (sometimes also known as energy dissipative hypothesis), though both came to the same physical conclusions, that the volume of the removed debris due to wear is proportional to the work done by friction ...

  6. Tribology - Wikipedia

    en.wikipedia.org/wiki/Tribology

    Tribology is the science and engineering of understanding friction, lubrication and wear phenomena for interacting surfaces in relative motion.It is highly interdisciplinary, drawing on many academic fields, including physics, chemistry, materials science, mathematics, biology and engineering. [1]

  7. Fatigue (material) - Wikipedia

    en.wikipedia.org/wiki/Fatigue_(material)

    Wear; Yielding; In materials science ... is the fatigue ductility coefficient, is the fatigue ductility exponent, and is the number of cycles to failure ...

  8. Can developing type 2 diabetes before age 50 raise dementia risk?

    www.aol.com/lifestyle/developing-type-2-diabetes...

    Getting diagnosed with type 2 diabetes before the age of 50 may increase one's risk of developing dementia by 1.9 times, a new study has found.

  9. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    coefficient of friction: unitless (dynamic) viscosity (also ) pascal second (Pa⋅s) permeability (electromagnetism) henry per meter (H/m) reduced mass: kilogram (kg) Standard gravitational parameter: cubic meter per second squared mu nought Vacuum permeability or the magnetic constant