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MEAM Seminar: “Fingertip Friction, Materials, and Tactile Perception”

July 3 at 10:15 AM - 11:15 AM

Sliding touch is one of the key inputs for the perception of materials in our environment. We are interested in the contribution of fingertip friction to the process of tactile exploration and perception. Psychophysical studies address correlations between subjective judgements of perception and measured physical parameters of interactions, in our case of friction on materials with systematically varied surface structure. A challenge in this approach are large variances in skin physiological parameters between the participants in our studies. I will discuss how surface structures are perceived in sliding touch, for which materials the determination of physiological parameters is helpful to predict friction, and if humans are able to rank friction differences correctly. Materials range from 3D printed plastic over micro-structured rubber to honey.

Roland Bennewitz

Interactive Surfaces Department Lead, Leibniz Institute for New Materials, Saarbrücken, Germany

Roland Bennewitz studied physics in Freiburg and Berlin in Germany. He received a Ph.D. in Experimental Physics from the Freie Universität Berlin and, after spending time as Research Assistant at the University of Basel in Switzerland, became Assistant Professor of the Physics Department of McGill University in Montreal, Canada. Since 2008, he leads the Interactive Surfaces Department of the INM – Leibniz Institute for New Materials in Saarbrücken, Germany, and is Professor of Experimental Physics at Saarland University.


July 3
10:15 AM - 11:15 AM
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Mechanical Engineering and Applied Mechanics
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Room 337, Towne Building
220 South 33rd Street
Philadelphia, PA 19104 United States
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