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

Sushovan Mukherjee; S. Gopalakrishnan

doi:10.1117/12.2260121

17 April 2017 Band structure computation of polygonal solid-solid phononic crystal with features using frequency domain spectral superelement method

Sushovan Mukherjee, S. Gopalakrishnan

Author Affiliations +

Proceedings Volume 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017; 101671M (2017) https://doi.org/10.1117/12.2260121
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

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.

Conference Presentation

Citation Download Citation

Sushovan Mukherjee and S. Gopalakrishnan "Band structure computation of polygonal solid-solid phononic crystal with features using frequency domain spectral superelement method", Proc. SPIE 10167, Nanosensors, Biosensors, Info-Tech Sensors and 3D Systems 2017, 101671M (17 April 2017); https://doi.org/10.1117/12.2260121

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