Finite element modeling of micropolar-based phononic crystals
Por:
Guarín-Zapata N., Gomez J., Valencia C., Dargush G.F., Hadjesfandiari A.R.
Publicada:
11 nov 2020
Resumen:
The performance of a Cosserat/micropolar solid as a numerical vehicle to represent dispersive media is explored. The study is conducted using the finite element method with emphasis on Hermiticity, positive definiteness, principle of virtual work and Bloch–Floquet boundary conditions. The periodic boundary conditions are given for both translational and rotational degrees of freedom and for the associated force- and couple-traction vectors. Results in terms of band structures for different material cells and mechanical parameters are provided. © 2019 Elsevier B.V.
Filiaciones:
Guarín-Zapata N.:
Universidad EAFIT, Departamento de Ingeniería civil, Medellín, Colombia
Gomez J.:
Universidad EAFIT, Departamento de Ingeniería civil, Medellín, Colombia
Valencia C.:
Universidad EAFIT, Departamento de Ingeniería civil, Medellín, Colombia
Dargush G.F.:
Department of Mechanical and Aerospace Engineering, University at Buffalo, United States
Hadjesfandiari A.R.:
Department of Mechanical and Aerospace Engineering, University at Buffalo, United States
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