Surface roughness effect on friction behaviour of elastomeric material

Elleuch, Riadh; Elleuch, Khaled; Abdelounis, H. Ben; Zahouani, H.

doi:10.1016/j.msea.2007.02.127

Cited by 41 publications

(21 citation statements)

References 18 publications

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“…However, to allow for a wide-spread use as structural materials, BMGs should have excellent combination properties, and their friction and wear property should be considered as well. As known, a variety of factors, such as normal load [22,23], sliding velocity [24], temperatures [25], surface roughness [26,27] and surface modifications [28,29], can affect the friction and wear behaviors of crystalline materials. Because of the difference in microstructure and other properties between the crystalline material and BMG, it is necessary to study the effect of these factors on the tribological behaviors of the BMG.…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviors of Zr-based bulk metallic glass versus Zr-based bulk metallic glass under relative heavy loads

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Tribological behaviors of Zr-based bulk metallic glass versus Zr-based bulk metallic glass under relative heavy loads

et al. 2015

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“…The British Slip Resistance Group reported that measurement of the ' R z ' parameter allow slipperiness to be predicted for a range of common materials [15]. Other studies [16-18] have reported that ' R a ' has a strong correlation with the friction coefficient. It is generally known that the surface roughness of a floor is directly related to slip resistance in the presence of contaminants such as water or oil.…”

Section: Methodsmentioning

confidence: 99%

Comparison of Three Different Slip Meters under Various Contaminated Conditions

Kim

2012

Safety and Health at Work

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ObjectivesTo challenge the problem of slipperiness, various slipmeters have been developed to assess slip hazard. The performance of in-situ slipmeter is, however, still unclear under the various floor conditions. The main objectives of this study were to evaluate the performance of three kinds of slipmeters under real conditions, and to find their dynamic and kinematic characteristics, which were compared with gait test results.MethodsFour common restaurant floor materials were tested under five contaminants. Slipmeters and human gaits were measured by high speed camera and force plate to find and compare their dynamic and kinematic characteristics.ResultsThe contact pressures and built-up ratio were below those of subjects. The sliding velocity of British Pendulum Tester was above those of subjects, while those of BOT-3000 and English XL were below those of subjects. From the three meters, the English XL showed the highest overall correlation coefficient (r = 0.964) between slip index and Ra, while the rest did not show statistical significance with surface roughness parameters (Ra, Rz). The English XL only showed statistical significance (p < 0.01) between slip index and contaminants. The static coefficient of friction obtained with the BOT-3000 showed good consistency and repeatability (CV < 0.1) as compared to the results for the BPT (CV > 0.2) and English XL (CV < 0.2).ConclusionIt is unclear whether surface roughness can be a reliable and objective indicator of the friction coefficient under real floor conditions, and the viscosity of contaminants can affect the friction coefficient of the same floors. Therefore, to evaluate slipperiness, the performance of the slipmeters needed to improve.

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“…The researcher noted down additional variables for each subject and six variables were measured for each measurement condition: the static and dynamic coefficient of friction, skin hydration, skin temperature, ambient temperature and air humidity. In the literature, the type of material of the contact (Adams et al, 2007;Asserin et al, 2000;Bertaux et al, 2010;Bobjer et al, 1993;Derler et al, 2012;Elleuch et al, 2007;Gerhardt et al, 2008a;Lewis et al, 2000;Sivamani et al, 2003;Tomlinson et al, 2011;Zhang and Mak, 1999), the normal load between this material and the skin (Adams et al, 2007;Bobjer et al, 1993;El-Shimi, 1977;Elleuch et al, 2007;Gerhardt et al, 2008a;Gitis and Sivamani, 2004;Koudine et al, 2000;Skedung et al, 2011;Zhang and Mak, 1999), and the relative velocity between the materials (Bobjer et al, 1993;Bullinger et al, 1979;Elleuch et al, 2007;Gerhardt et al, 2008a;Zhang and Mak, 1999) are considered to be important variables in the friction measured at the human skin. In this paper, the contact material, the normal load and the relative velocity are maintained constant in order to decrease the influence of these variables and consequently to limit the number of variables in the statistical analyses.…”

Section: Questionnairementioning

confidence: 99%

Variables influencing the frictional behaviour of in vivo human skin

Veijgen

Masen

Heide

2013

Journal of the Mechanical Behavior of Biomedical Materials

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In the past decades, skin friction research has focused on determining which variables are important to affect the frictional behaviour of in vivo human skin. Until now, there is still limited knowledge on these variables. This study has used a large dataset to identify the effect of variables on the human skin, subject characteristics and environmental conditions on skin friction. The data are obtained on 50 subjects (34 males and 16 females). Friction measurements represent the friction between in vivo human skin and an aluminium sample, assessed on three anatomical locations. The coefficient of friction increased significantly (p<0.05) with increasing age, increasing ambient temperature and increasing relative air humidity. A significant inversely proportional relationship was found between friction and both the amount of hair present on the skin and the height of the subject. Other outcome variables in this study were the hydration of the skin and the skin temperature.

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Surface roughness effect on friction behaviour of elastomeric material

Cited by 41 publications

References 18 publications

Tribological behaviors of Zr-based bulk metallic glass versus Zr-based bulk metallic glass under relative heavy loads

Tribological behaviors of Zr-based bulk metallic glass versus Zr-based bulk metallic glass under relative heavy loads

Comparison of Three Different Slip Meters under Various Contaminated Conditions

Variables influencing the frictional behaviour of in vivo human skin

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