Flexural wave mitigation in metamaterial cylindrical curved shells with periodic graded arrays of multi-resonator

2022 ◽  
Vol 168 ◽  
pp. 108721
Author(s):  
Dunhui Yao ◽  
Maokun Xiong ◽  
Jinyu Luo ◽  
Lingyun Yao
Keyword(s):  
Flexural Wave

Flexural Wave Band Gaps in Phononic Crystal Thick Plates with Defects

2019 ◽  
Author(s):  
Edson Jansen Pedrosa de Miranda Junior ◽  
Jose Maria Campos dos Santos
Keyword(s):  
Phononic Crystal ◽  
Band Gaps ◽  
Flexural Wave ◽  
Wave Band ◽  
Thick Plates

scholarly journals Flexural Wave Propagation in Beam with Dispersion

1984 ◽  
Vol 27 (231) ◽  
pp. 2008-2015 ◽  
Author(s):  
Kenzou NONAMI ◽  
Noboru TOMINARI ◽  
Takayoshi TOTANI
Keyword(s):  
Wave Propagation ◽  
Flexural Wave ◽  
Flexural Wave Propagation

Fast and slow interaction of elastic waves with platonic clusters

2011 ◽  
Vol 467 (2136) ◽  
pp. 3509-3529 ◽  
Author(s):  
Michael H. Meylan ◽  
Ross C. McPhedran
Keyword(s):  
Elastic Waves ◽  
Early Time ◽  
Approximate Solutions ◽  
Wave Profile ◽  
Flexural Wave ◽  
Flexural Waves ◽  
Analytical Extension ◽  
Scattering Of Elastic Waves ◽  
Classical Models ◽  
The Time Domain

We study the scattering of elastic waves by platonic clusters in the time domain, both for plane wave excitations and for a specified initial wave profile. We show that we can use an analytical extension of our problem to calculate scattering frequencies of the solution. These allow us to calculate approximate solutions that give the flexural wave profile accurately in and around the cluster for large times. We also discuss the early-time behaviour of flexural waves in terms of the classical models of Sommerfeld and Brillouin.

Damage Assessment of Beams Using Flexural Wave Reflection Coefficients

2007 ◽  
Vol 347 ◽  
pp. 193-198 ◽  
Author(s):  
Simon P. Shone ◽  
Brian R. Mace ◽  
Tim P. Waters
Keyword(s):  
Damage Assessment ◽  
Wave Reflection ◽  
Experimental Results ◽  
Flexural Wave ◽  
Reflection Coefficients ◽  
Wave Power ◽  
Spring Model ◽  
Low Frequencies ◽  
Experimental Errors ◽  
Ill Conditioning

The wave reflection coefficients of damage such as cracks, notches and slots in otherwise uniform beams depend on frequency and on the size of the damage. Experimental results are presented for the wave power reflection coefficients of transverse slots of various depths sawn into a number of beam specimens. These results are compared with a conventional spring model to estimate the depth of the slot. The method appears to work well for larger slot depths (greater than about 30% of the thickness of the beam) and at higher frequencies, allowing their existence to be inferred and their size to be estimated. This is due to the fact that the reflection coefficients are larger in these regimes. For smaller slots or at low frequencies, noise and experimental errors, such as miscalibration errors and ill-conditioning, become more significant.

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