Deformation coefficient of friction, also called coefficient of deformation, is the force restricting the movement of an object that is sliding or rolling and one or both surfaces are relatively soft and deformed by the forces. In the context of materials science and mechanics, deformation typically refers to the change in shape or size of a material when subjected to an external force or load.
Various Properties and Coefficients May be Used to Describe Deformation
Strain - A measure of how much a material deforms when subjected to an applied force.