Band structure computation of polygonal solid-solid phononic crystal with features using frequency domain spectral superelement method

Mukherjee, Sushovan and Gopalakrishnan, S (2017) Band structure computation of polygonal solid-solid phononic crystal with features using frequency domain spectral superelement method. In: Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017, 26 - 29 March 2017, Portland, 101671M.

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Abstract

Phononic crystals are synthetic materials with a periodic structure having spatial variations of elasto-inertial properties of constituent materials, aimed at developing devices and bulk material with engineered acoustic/elastic properties. Multi-material structures with sides of a space filling polygonal tessellation, can constitute solid-solid phononic crystal. Coupled with inclusions and features, phononic crystals show rich and varied band structure phenomenon. We use frequency domain spectral superelement method and Bloch theory to efficiently calculate the band structures of such phononic crystals. We particularly investigate hexagonal honeycombs to assess the impacts of joint elasticity, inertia and circular and elliptical holes on band gap behavior.

Item Type:	Conference Paper
Publisher:	SPIE
Additional Information:	The copyright for this article belongs to the SPIE.
Keywords:	Band structure; Biosensors; Computation theory; Frequency domain analysis; Nanosensors; Phonons; Constituent materials; Frequency domains; Hexagonal honeycomb; Inertial properties; Multi-material structure; Spatial variations; Structure computation; Synthetic materials; Crystal structure
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	14 Jun 2022 05:37
Last Modified:	14 Jun 2022 05:37
URI:	https://eprints.iisc.ac.in/id/eprint/73445

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