{
	"event_id": "1100788",
	"eventinstance_id": "4092722",
	"calendar": {
		"id": 2269,
		"title": "UCF Events",
		"slug": "ucf-events",
		"url": "https://events.ucf.edu/calendar/2269/ucf-events/"
	},
	"id": "4092722",
	"title": "Colloquium by Professor David Guinovart, University of Minnesota",
	"subtitle": null,
	"description": "\u003Cp\u003EOur\u003Cspan\u003E\u0026nbsp\u003B\u003C/span\u003E\u003Ca href\u003D\u0022https://sciences.ucf.edu/math/colloquium/\u0022 target\u003D\u0022_blank\u0022\u003Ecolloquium\u003C/a\u003E\u003Cspan\u003E\u0026nbsp\u003B\u003C/span\u003Eseries offers a diverse platform for research scholars, faculty, students, and industry experts to share and exchange ideas, fostering discussion and networking across mathematics, statistics, and data science.\u003C/p\u003E\u000A\u003Cp\u003EDr. \u003Ca href\u003D\u0022https://hi.umn.edu/research/faculty/david\u002Dguinovart\u002Dphd\u0022 target\u003D\u0022_blank\u0022\u003EDavid Guinovart\u003C/a\u003E from University of Minnesota\u003Cspan\u003E\u0026nbsp\u003B\u003C/span\u003Ewill speak at this week\u0027s colloquium on \u0022\u003Cstrong\u003E\u003Cem\u003E\u003Cspan\u003EControlling Surface Waves with Laminated Metabarriers: Theory and Dynamic Homogenization\u003C/span\u003E\u003C/em\u003E\u003C/strong\u003E.\u0022\u003C/p\u003E\u000A\u003Cp\u003E\u003Cstrong\u003EAbstract:\u003Cspan\u003E\u0026nbsp\u003B\u003C/span\u003E\u003C/strong\u003EWe investigate the interaction between Love waves and laminated metabarriers embedded in an elastic half\u002Dspace. Metabarriers, defined as periodic arrays of resonant structures, enable sub\u002Dwavelength control of surface wave propagation, yet remain less explored than metasurfaces. The configuration considered consists of periodically arranged multilayered laminates, whose geometric parameters, such as layer height, volume fraction, and unit\u002Dcell size, provide tunable control over wave behavior.\u003C/p\u003E\u000A\u003Cp\u003ETo analyze the system, we employ a non\u002Dclassical dynamic asymptotic homogenization framework that replaces the discrete laminated structure with an effective dispersive multilayer. This approach allows the derivation of closed\u002Dform expressions for the dispersion relation, displacement fields, and time\u002Daveraged kinetic energy. The analytical model predicts the emergence of cut\u002Doff frequencies and hybrid dispersion regions within the first Brillouin zone. In single\u002Dlayer metabarriers, one hybrid region is obtained, while bilayer configurations produce multiple cut\u002Doff frequencies and band gaps due to stronger mode coupling.\u003C/p\u003E\u000A\u003Cp\u003EFinite element simulations of the discrete unit cell validate the homogenized model in the low\u002Dfrequency regime and confirm wave propagation within pass bands and attenuation inside band gaps. The results provide insight into Love\u002Dwave hybridization mechanisms and demonstrate the potential of laminated metabarriers for tunable wave control and energy harvesting.\u003C/p\u003E\u000A\u003Cp\u003E\u003Cstrong\u003ESpeaker Bio:\u003Cspan\u003E\u0026nbsp\u003B\u003C/span\u003E\u003C/strong\u003EDavid Guinovart is an Assistant Professor at The Hormel Institute, University of Minnesota, where he leads the Mathematical Modeling Lab and serves as a Bioinformatics Advisor for research teams across the institute. A proud UCF alumnus, he earned his Ph.D. in Applied Mathematics at the University of Central Florida, where he developed a love for using math to tackle real scientific problems. His work sits at the intersection of applied mathematics, computation, and biology, with two main tracks: cancer research and material science. In cancer, he builds models and machine learning tools that help make sense of complex biomedical data and support efforts in prediction and biomarker discovery. In material science, he develops mathematical and numerical models to understand multiscale behavior and effective properties of complex structures. Through collaboration and advising, he enjoys helping researchers turn ideas and data into clear, actionable results.\u003C/p\u003E",
	"location": "MSB 318: Mathematical Sciences Building, Room 318",
	"location_url": "https://www.ucf.edu/location/mathematical\u002Dsciences\u002Dbuilding/",
	"virtual_url": null,
	"registration_link": null,
	"registration_info": null,
	"starts": "Mon, 23 Mar 2026 15:30:00 -0400",
	"ends": "Mon, 23 Mar 2026 16:30:00 -0400",
	"ongoing": "False",
	"category": "Speaker/Lecture/Seminar",
	"tags": ["UCF SDMSS","UCF Statistics","UCF Mathematics"],
	"contact_name": "Kuppalapalle Vajravelu",
	"contact_phone": null,
	"contact_email": "Kuppalapalle.Vajravelu@ucf.edu",
	"url": "https://events.ucf.edu/event/4092722/colloquium-by-professor-david-guinovart-university-of-minnesota/"
}