17 April 2017 Band structure computation of polygonal solid-solid phononic crystal with features using frequency domain spectral superelement method
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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.
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Sushovan Mukherjee, Sushovan Mukherjee, S. Gopalakrishnan, 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); doi: 10.1117/12.2260121; https://doi.org/10.1117/12.2260121
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