Journal
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
Volume 112, Issue -, Pages 50-65Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jmps.2017.11.015
Keywords
Friction; Numerical models; Microstructures; Anisotropic materials
Funding
- European Commission [696656, 732344]
- H FET Proactive Neurofibres grant [732344]
- European Commission [696656, 732344]
- H FET Proactive Neurofibres grant [732344]
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The friction force observed at macroscale is the result of interactions at various lower length scales that are difficult to model in a combined manner. For this reason, simplified approaches are required, depending on the specific aspect to be investigated. In particular, the dimensionality of the system is often reduced, especially in models designed to provide a qualitative description of frictional properties of elastic materials, e.g. the spring block model. In this paper, we implement for the first time a two dimensional extension of the spring-block model, applying it to structured surfaces and investigating by means of numerical simulations the frictional behaviour of a surface in the presence of features like cavities, pillars or complex anisotropic structures. We show how friction can be effectively tuned by appropriate design of such surface features. (C) 2017 Elsevier Ltd. All rights reserved.
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