Experimental and Numerical Simulation of Wheel-Rail Adhesion and Wear Using a Scaled Roller Rig and a Real-Time Contact Code

Table 3

Values of the wear coefficient used in this work: the coefficient 𝐾 is expressed in m/km rolled.

Wear coefficient 𝐾	𝑣slip
	<0.1	0.1÷0.2	0.2÷0.3	0.3÷0.4	0.4÷0.5	0.5÷0.7	>0.7
Wheel
𝑃>0.8 ∗ H MPa				370×10^−4
𝑃<0.8 ∗ H MPa	1×10^−4	3.6×10^−4	8.5×10^−4	29×10^−4	31.8×10^−4	18×10^−4	1×10^−4
Roller
𝑃>0.8 ∗ H MPa				520×10^−4
𝑃<0.8 ∗ H MPa	2×10^−4	7.8×10^−4	13.3×10^−4	48.2×10^−4	53×10^−4	21.7×10^−4	2×10^−4