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Proceedings Papers

Data-Driven Estimation of Bandgap Frequencies in Metastructures for Elastic Wave Absorption

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Hrishikesh Gosavi, Vijaya V. N. Sriram Malladi
Proc. ASME. SMASIS2023, ASME 2023 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T03A010, September 11–13, 2023
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2023-112598
https://doi.org/10.1115/SMASIS2023-112598
... Abstract This study investigates the elastic wave absorption behavior of metastructures in the bandgap frequency region. The bandgap region is estimated using data-driven methods based on the Frequency Response Function (FRF) of the unit cell of the metastructure. To achieve this, the unit cell...
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Topics: Absorption, Elastic waves, Energy gap
Proceedings Papers

Understanding the Influence of Resonators on Frequency Band Gaps in Sonic Crystal Metamaterials

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Riaz Ahmed, Hossain Ahmed
Proc. ASME. SMASIS2021, ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, V001T07A005, September 14–15, 2021
Publisher: American Society of Mechanical Engineers
Paper No: SMASIS2021-67991
https://doi.org/10.1115/SMASIS2021-67991
... material. The frequency bandgap in a sonic crystal is a result of Bragg scattering and local resonance of the resonators in the unit cell. In this study, a comprehensive analysis is performed to understand the influence of resonators on frequency stopbands and the range/width of the bandgap. Two frequency...
View Paper titled, Understanding the Influence of Resonators on Frequency Band Gaps in Sonic Crystal Metamaterials
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Topics: Crystals, Electromagnetic spectrum, Energy gap, Metamaterials, Mode shapes, Phononic crystals