Abstract: The phenomenon of resonance underlies a myriad of important features (both desirable and unwanted) across physics and engineering. This talk will present a brief survey of examples followed by a couple of recent developments. The first involves the use of 3D-printing to illustrate sympathetic resonance – via a useful teaching tool. The second concerns the prediction of critical speeds (a resonant condition) in rotation shafts – an example of non-destructive testing. The talk is intended for a general audience.

Bio: Lawrie Virgin is a professor of mechanical engineering and materials science at Duke University. He is a former chair of Duke’s Department of Civil and Environmental Engineering and has been a faculty member at Duke since 1988, prior to which he received his BS from the University of Manchester (UK) and PhD from University College London (UK). Virgin’s research interests are centered on nonlinear mechanics, especially buckling, nonlinear vibration, and their interactions, especially from an experimental perspective. Applications of his research include ship capsize, aeroelasticity, marine risers, rocking blocks, control, sonic fatigue, solar sails, and the dynamics of slender structures. He has also developed an interest in 3D-printing and especially its use in the teaching of mechanics. He has published over 180 journal papers, and two books: Introduction to Experimental Nonlinear Dynamics (2000), and Vibrations of Axially Loaded Structures (2007), both by Cambridge University Press.