|Flexural wave band structure of magneto-elastic phononic crystal nanobeams based on the nonlocal theory|
|Zhang, Shunzu1; Gao, YW(高原文)2|
|Source Publication||Physics Letters, Section A: General, Atomic and Solid State Physics
|Abstract||Phononic crystals are widely researched for new kinds of functional composites. However, studies on magneto-elastic PCs at nanoscale that show special superiorities are quite limited. Considering the nonlocal effect and nonlinear magneto-mechanical coupling, this work establishes a theoretical model for size-dependent flexural wave band structure of magneto-elastic PC nanobeams with magnetostrictive materials according to the Euler–Bernoulli beam model and nonlocal theory. The influence of nonlocal parameter, pre-stress and magnetic field on band structure of Titanium/Terfenol-D PC nanobeams is analyzed. The results show that the nonlocal effect has a remarkable weakening impact on the dispersion curve of high order band gap. In addition, band gap exhibits complex nonlinear coupling characteristics due to the consideration of pre-stress and magnetic field. Moreover, geometric parameter plays an important role in determining the size-dependent band structure. Consequently, the research may be helpful for flexible regulation of elastic wave propagation in PC nanobeam-based devices. © 2020 Elsevier B.V.|
|Keyword||Beams and girders
High-order band gaps
Nonlinear coupling characteristic
|EI Accession Number||20205209680362
|EI Keywords||Crystal structure
|EI Classification Number||408.2 Structural Members and Shapes - 701.2 Magnetism: Basic Concepts and Phenomena - 722.4 Digital Computers and Systems - 761 Nanotechnology - 931.1 Mechanics - 933 Solid State Physics
|Corresponding Author||Zhang, Shunzu|
|Affiliation||1.School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan; Ningxia; 750021, China;|
2.Department of Mechanics and Engineering Sciences, College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou; Gansu; 730000, China
Zhang, Shunzu,Gao, Yuanwen. Flexural wave band structure of magneto-elastic phononic crystal nanobeams based on the nonlocal theory[J].
Physics Letters, Section A: General, Atomic and Solid State Physics,2021,390.
Zhang, Shunzu,&Gao, Yuanwen.(2021).Flexural wave band structure of magneto-elastic phononic crystal nanobeams based on the nonlocal theory.Physics Letters, Section A: General, Atomic and Solid State Physics,390.
Zhang, Shunzu,et al."Flexural wave band structure of magneto-elastic phononic crystal nanobeams based on the nonlocal theory".Physics Letters, Section A: General, Atomic and Solid State Physics 390(2021).
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