TY  - JOUR
PY  - 2004//
TI  - The effects of cut-off length on surface roughness parameters and their correlation with transition friction
JO  - Safety science
A1  - Chang, Wen-Ruey
A1  - Hirvonen, Mikko
A1  - Gronqvist, Raoul
SP  - 755
EP  - 769
VL  - 42
IS  - 8
N2  - Surface roughness affects friction, but it is not clear which surface roughness characteristics are better correlated with friction. The surface roughness parameters generated from quarry tiles were correlated with the transition friction between the tiles and a commonly used sole testing material, Neolite, with three different mixtures of glycerol and water as contaminants at the interface. Measurement of surface roughness usually requires removing the waviness portion from the measured profiles in order to focus on the surface features of interest through the selection of different cut-off lengths for filtering. The effect of cut-off length on the values of surface roughness parameters and their correlation with transition friction were investigated. The correlation coefficient between the surface roughness parameters and the measured friction was affected by the glycerol contents. The cut-off lengths of 2.5 and 8 mm resulted in stronger correlated surface roughness parameters than that of 0.8 mm. The surface parameters [Delta]a, Rpm, Rk, R3z and Ra had a stronger correlation with the transition friction than other surface parameters examined in this study.<p />
LA  - en
SN  - 0925-7535
UR  - http://dx.doi.org/
ID  - ref1
ER  -