期刊
出版社
ROYAL SOC
DOI: 10.1098/rspa.2015.0658
关键词
flexural waves; platonic crystals; discrete Wiener-Hopf method; localization; neutrality
资金
- EPSRC (UK) [EP/L024926/1]
- EPSRC [EP/J009636/1, EP/L024926/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J009636/1, EP/L024926/1] Funding Source: researchfish
The paper presents new results on the localization and transmission of flexural waves in a structured plate containing a semi-infinite two-dimensional array of rigid pins. In particular, localized waves are identified and studied at the interface boundary between the homogeneous part of the flexural plate and the part occupied by rigid pins. A formal connection has been made with the dispersion properties of flexural Bloch waves in an infinite doubly periodic array of rigid pins. Special attention is given to regimes corresponding to standing waves of different types as well as Dirac-like points that may occur on the dispersion surfaces. A single half-grating problem, hitherto unreported in the literature, is also shown to bring interesting solutions.
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