Analysis of Dynamic Behavior of the Finite Elastic Metamaterial-Based Structure With Frequency-Dependent Properties
| العنوان: | Analysis of Dynamic Behavior of the Finite Elastic Metamaterial-Based Structure With Frequency-Dependent Properties |
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| المؤلفون: | C.T. Sun, Guoliang Huang, Xiaohui Shen, Miles V. Barnhart |
| المصدر: | Journal of Vibration and Acoustics. 140 |
| بيانات النشر: | ASME International, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Physics, Wave propagation, Mathematical analysis, General Engineering, Metamaterial, Young's modulus, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Transfer function, Finite element method, Displacement (vector), Electromagnetic induction, Stress (mechanics), symbols.namesake, 0103 physical sciences, symbols, 010306 general physics, 0210 nano-technology |
| الوصف: | For practical applications of the elastic metamaterials, dynamic behavior of finite structures made of elastic metamaterials with frequency dependent properties are analyzed theoretically and numerically. First, based on a frequency-dependent mass density and Young's modulus of the effective continuum, the global dynamic response of a finite rod made of elastic metamaterials is studied. It is found that due to the variation of the effective density and Young's modulus, the natural frequency distribution of the finite structure is altered. Furthermore, based on the spectral approach, the general wave amplitude transfer function is derived before the final transmitted wave amplitude for the finite-layered metamaterial structure with decreasing density is obtained using the mathematical induction method. The analytical analysis and finite element solutions indicate that the increased transmission wave displacement amplitude and reduced stress amplitude can be controlled by the impedance mismatch of the adjacent layers of the layered structure. |
| تدمد: | 1528-8927 1048-9002 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::01566bb6440d75e04785d355087c74f8 https://doi.org/10.1115/1.4038950 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi...........01566bb6440d75e04785d355087c74f8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15288927 10489002 |
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