Propagation and confinement of elastic waves in a random distribution of pillars
- 👤 Speaker: Yan Pennec (Université de Lille)
- 📅 Date & Time: Monday 22 May 2023, 11:35 - 12:20
- 📍 Venue: Seminar Room 1, Newton Institute
Abstract
We theoretically investigate the interaction between an array of sub-wavelength pillars on a substrate or a plate. FEM simulations allows to calculate the resonant modes of a finite chain of N pillars with linear, bent or random distributions and demonstrate the propagation along the chain. Then, using a mass-spring model of pillars on a plate, the propagation and confinement of 2D elastic waves are studied analytically by multiple scattering method. Some preliminary experimental results will illustrate the presentation.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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Yan Pennec (Université de Lille)
Monday 22 May 2023, 11:35-12:20