CUED Publications database

Bifurcations and instability in the adhesion of intrinsically curved rods

Majidi, C and O'Reilly, OM and Williams, JA (2013) Bifurcations and instability in the adhesion of intrinsically curved rods. Mechanics Research Communications, 49. pp. 13-16. ISSN 0093-6413

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Abstract

Motivated by applications such as gecko-inspired adhesives and microdevices featuring slender rod-like bodies, there has been an increase in interest in the deformed shapes of elastic rods adhering to rigid surfaces. A central issue in analyses of the rod-based models for these systems is the stability of the predicted equilibrium configurations. Such analyses can be complicated by the presence of intrinsic curvatures induced by fabrication processes. The results in the present paper are used to show how this curvature can lead to shear-induced bifurcations and instabilities. To characterize potential instabilities, a new set of necessary conditions for stability are employed which cater to the possible combinations of buckling and delaminating instabilities. © 2013 Elsevier Ltd. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Adhesion Elastica Rod theory Stability
Subjects: UNSPECIFIED
Divisions: Div C > Materials Engineering
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:29
Last Modified: 08 Dec 2014 02:28
DOI: 10.1016/j.mechrescom.2013.01.004