Lateral force controlled impact tribometer characterizing transient friction: Effect of contact pressure

Singh, VK and Likhar, PV and Simha, KRY and Kandan, AM and Prasad, KS and Krishna, PH and Kailas, SV (2024) Lateral force controlled impact tribometer characterizing transient friction: Effect of contact pressure. In: Tribology International, 196 .

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Abstract

A new Lateral Force Impact Tribometer (LFIT) is designed to quantify the dynamic friction of synthetic seat belt and D Ring Polymer (DRP) under transient conditions during the initial sliding period. LFIT simulates the sliding between two bodies subjected to a sudden lateral force applied, resulting in relative motion. Transient friction under suddenly applied initial acceleration conditions is obtained from the displacement response. LFIT overcomes stiffness concerns of most displacement-controlled tribometers in which the sensors and actuators influence the contact stiffness, nature of asperity interaction, and frictional characteristics. The displacement vs. time response showed the variation in displacement during the initial 0.3 mm sliding distance. LFIT is modelled as a spring-mass-Coulomb damper system applied for transient analysis. The effect of contact pressure on the transient Coefficient of Friction (CoF) is studied in the present work. This paper perhaps presents the first report that enables the capture of the friction transition within 10 ms from the start of sliding. © 2024 Elsevier Ltd

Item Type:	Journal Article
Publication:	Tribology International
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd.
Keywords:	Displacement control; Friction; Pressure effects; Stiffness, Contact pressures; Coulomb's frictions; D-rings; Dynamics frictions; Friction effect; Impact tribometer; Lateral force; Ring-polymers; Seat belt; Transient conditions, Transient analysis
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	31 May 2024 04:33
Last Modified:	31 May 2024 04:33
URI:	https://eprints.iisc.ac.in/id/eprint/85101

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