Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session K09: Friction, Fracture, and Adhesion in Soft Materials II
3:00 PM–5:48 PM,
Tuesday, March 7, 2023
Room: Room 132
Sponsoring
Unit:
DSOFT
Chair: Ahmed Elbanna, University of Illinois at Urbana-Champai
Abstract: K09.00011 : Underwater friction for soft-hard contacts*
5:00 PM–5:12 PM
Presenter:
Utkarsh R Patil
(The University of Akron)
Authors:
Utkarsh R Patil
(The University of Akron)
Nityanshu Kumar
(University of Akron)
Shubhendu Kumar
(University of Akron)
Ali Dhinojwala
(University of Akron)
Hunter King
(University of Akron)
In this study, we are using a soft elastomer (crosslinked PDMS) with a smooth solid substrate (OTS monolayer) and varying parameters such as surface wettability, elastic modulus, and velocity. We measure the effect of these parameters on the dynamic evolution of the microscopic contact area and the local entrapped water during sliding along with the in-situ friction force measurements. This study provides insight into the changes in friction coefficients across a broad velocity range underwater. These results have implications in the fields of bio-tribology, smart underwater robotics, haptics, and tire traction.
*We acknowledge funding supportĀ from the National Science Foundation (NSF DMR-2208464)
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