The two-dimensional phononic band gaps tuned by the position of the additional rod

Yao, Yuanwei; Hou, Zhipeng; Liu, Youyan

doi:10.1016/j.physleta.2006.10.061

Cited by 26 publications

(9 citation statements)

References 25 publications

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“…30 Recent investigations focusing on tunable phononic band-gap systems have shown that the properties of phononic crystals can be modified by ͑i͒ using the piezoelectric effect which altered out-of-plane modes, 38 ͑ii͒ through direct physical rotation of elements in a 2D periodic system of rods hosted in air, 39 and ͑iii͒ through direct physical changing of the positioning and dimensions of the periodic geometry. 40,41 However, to our knowledge, the use of deformation to tune and transform the band structure of periodic elastomeric solids has never been considered.…”

Section: Discussionmentioning

confidence: 99%

Wave propagation and instabilities in monolithic and periodically structured elastomeric materials undergoing large deformations

2008

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Wave propagation in elastomeric materials undergoing large deformations is relevant in numerous application areas, including nondestructive testing of materials and ultrasound techniques, where finite deformations and corresponding stress states can influence wave propagation and hence interpretation of data. In the case of periodically structured hyperelastic solids, the effect of deformation on the propagation of acoustic waves can be even more dramatic. In fact, transformations in the periodic patterns have been observed upon application of load due to microstructural elastic instabilities, providing opportunities for transformative phononic crystals which can switch band-gap structure in a sudden, but controlled manner. Here both analytical and numerical techniques are presented for assessing the influence of finite deformations on the propagation of elastic waves in both monolithic as well as periodically structured elastomeric materials. Both elastic instabilities and propagation of acoustic waves are strongly influenced by geometric pattern, material properties and loading conditions, giving different opportunities for tuning and manipulating the location and presence of instabilities and phononic band gaps.

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Section: Discussionmentioning

confidence: 99%

Wave propagation and instabilities in monolithic and periodically structured elastomeric materials undergoing large deformations

2008

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“…The dispersion characteristics of these lattice-types typically exhibit symmetry-induced band degeneracies which restrict the spectral range of PBG. As a result, many attempts were made to exploit the correlation between lattice geometry and wave propagation to tailor the PBG via reducing/changing lattice symmetry, either by inserting additional inclusions or via re-arranging and re-orienting existing inclusions [5,[12][13][14][15][16][17][18][19][20][21][22][23]. However, such efforts were not effective in achieving substantial wave control because the PBG adaptation is only incremental in terms of both spectral range and location, and the mechanisms to realize programmable and controllable topology transformation, especially between different lattice-types, are nonexistent.…”

Section: Introductionmentioning

confidence: 99%

Lattice reconfiguration and phononic band-gap adaptation via origami folding

Thota

Wang

2017

Phys. Rev. B

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We introduce a framework of utilizing origami folding to redistribute the inclusions of a phononic structure to achieve significant phononic bandgap adaptation. Cylindrical inclusions are attached to the vertices of Miura-Ori sheet, whose one degree-of-freedom rigid-folding can enable fundamental reconfigurations in the underlying periodic architecture via switching between different Bravais lattice-types. Such reconfiguration can drastically change the wave propagation behavior in terms of bandgap and provide a scalable and practical means for broadband wave tailoring.

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“…Several methods have been used to study the AZs of periodic structures, such as the PWE [18][19][20], multiple scattering theory (MST) [21,22] [23,24]. However, the PWE method encounters convergence problems when there is a large elastic difference between components of the periodic structures [25].…”

Section: Introductionmentioning

confidence: 99%