A set of thermoplastic materials employed in soles for alpine skiing boots were characterized in terms of chemical composition, cristallinity, hardness, surface roughness, and grip. The results of friction experiments on different substrates reproducing the real environmental scenarios point out that materials provide more grip as they become softer. Moreover, higher roughness results in lower dynamic coefficient of friction (COF). Finite element simulations corroborate the experimental measures of COF and let to rationalize the role of material elasticity and surface roughness on the frictional characteristics of soles. The measure of grip on an inclined wet surface provides analogous results, indicating that COF can be used as key performance indicator in the design of ski-boot soles and of other anti-slip equipments in wet and icy environments.

Moncalero, M., Signetti, S., Mazzanti, B., Bruzzi, P., Pugno, N.M., Colonna, M. (2017). Effect of material elastic properties and surface roughness on grip performances of ski boot soles under wet and icy conditions. INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 61, 62-70 [10.1016/j.ergon.2017.04.004].

Effect of material elastic properties and surface roughness on grip performances of ski boot soles under wet and icy conditions

Moncalero, Matteo;Colonna, Martino
2017

Abstract

A set of thermoplastic materials employed in soles for alpine skiing boots were characterized in terms of chemical composition, cristallinity, hardness, surface roughness, and grip. The results of friction experiments on different substrates reproducing the real environmental scenarios point out that materials provide more grip as they become softer. Moreover, higher roughness results in lower dynamic coefficient of friction (COF). Finite element simulations corroborate the experimental measures of COF and let to rationalize the role of material elasticity and surface roughness on the frictional characteristics of soles. The measure of grip on an inclined wet surface provides analogous results, indicating that COF can be used as key performance indicator in the design of ski-boot soles and of other anti-slip equipments in wet and icy environments.
2017
Moncalero, M., Signetti, S., Mazzanti, B., Bruzzi, P., Pugno, N.M., Colonna, M. (2017). Effect of material elastic properties and surface roughness on grip performances of ski boot soles under wet and icy conditions. INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 61, 62-70 [10.1016/j.ergon.2017.04.004].
Moncalero, Matteo; Signetti, Stefano; Mazzanti, Barbara; Bruzzi, Pietro; Pugno, Nicola M.; Colonna, Martino
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/622705
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