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SUMMARY:Propagation and confinement of elastic waves in a random distribut
 ion of pillars - Yan Pennec (Université de Lille)
DTSTART:20230522T103500Z
DTEND:20230522T112000Z
UID:TALK198937@talks.cam.ac.uk
DESCRIPTION:We theoretically investigate the interaction between an array 
 of sub-wavelength pillars on a substrate or a plate. FEM simulations allow
 s to calculate the resonant modes of a finite chain of N pillars with line
 ar\, bent or random distributions and demonstrate the propagation along th
 e chain. Then\, using a mass-spring model of pillars on a plate\, the prop
 agation and confinement of 2D elastic waves are studied analytically by mu
 ltiple scattering method. Some preliminary experimental results will illus
 trate the presentation.\n&nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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