Specific wear coefficient acc. to Fleischer

The wear models according to Fleischer and Archard can be used in COMBROS R (see FVA 933 I, transient plain bearing operating behavior).

According to Fleischer, the wear volume V_W is obtained as the quotient of the total solid friction work W_R and the wear-specific friction work e_R^*. The local wear height h_w, which is included as an additional term in the local lubrication gap height, is in turn calculated as the quotient of V_W and the respective control volume area ΔA. The frictional shear stresses τ_c in turn result from the friction coefficient μ and the previously determined solid contact pressure p_c.

Archard's formula has a similar formal structure, with the quotient of friction coefficient and specific wear work replaced by the quotient of wear coefficient according to Archard k* and material hardness H.