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An investigation of the effect of shearing velocity on the inter-particle behavior of granular and composite materials with a new micromechanical dynamic testing apparatus

He, H; Senetakis, K; Coop, MR; (2019) An investigation of the effect of shearing velocity on the inter-particle behavior of granular and composite materials with a new micromechanical dynamic testing apparatus. Tribology International , 134 pp. 252-263. 10.1016/j.triboint.2019.02.002.

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Abstract

The study of rate and shearing effects is of major interest in geomechanics and petroleum engineering research. In this paper, a new micromechanical apparatus is presented along with calibration and reliability tests, which is designed in a way that the interface behavior of granular materials can be examined for a broad range of shearing velocities of five-orders of magnitude utilizing a dynamic data-logger and high-resolution sensors. The results showed that the shearing velocity between 0.4 and 1,340 mm/h did not influence the response of dry grain-grain interfaces including engineered and natural grains, but it significantly affected the frictional behavior of composite grain-rubber interfaces.

Type: Article
Title: An investigation of the effect of shearing velocity on the inter-particle behavior of granular and composite materials with a new micromechanical dynamic testing apparatus
DOI: 10.1016/j.triboint.2019.02.002
Publisher version: https://doi.org/10.1016/j.triboint.2019.02.002
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Sliding friction, Coefficient of friction, Friction measurement, Dry friction
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: http://discovery.ucl.ac.uk/id/eprint/10067188
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