Results 81 to 90 of about 547 (170)
AIP Advances, 2015 We present the design, implementation and detailed performance analysis for a class of trapeziform and flat acoustic cloaks. An effective large invisible area is obtained compared with the traditional carpet cloak.
Jian Zhu +5 more
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Journal of Ocean Engineering and Science, 2019 This work examines the physical effect of the edge-induced acoustic radiation force and torque on an acoustically radiating infinitely-long circular cylindrical source, located near a rigid corner. Assuming harmonic (linear) radiating waves of the source,
F.G. Mitri
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Ultrathin Acoustic Parity-Time Symmetric Metasurface Cloak
Research, 2019 Invisibility or unhearability cloaks have been made possible by using metamaterials enabling light or sound to flow around obstacle without the trace of reflections or shadows. Metamaterials are known for being flexible building units that can mimic a host of unusual and extreme material responses, which are essential when engineering artificial ...
Li, Hao-xiang +7 more
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Physical Review X, 2018 We present a fundamentally new approach to laboratory acoustic and seismic wave experimentation that enables full immersion of a physical wave propagation experiment within a virtual numerical environment.
Theodor S. Becker +10 more
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A review of additively manufactured pentamode lattices: Theory, methods and applications
Journal of Mechanical Engineering and SciencesPentamode metamaterials, characterized by their near-zero shear modulus and high bulk modulus, have attracted solid interest due to their unique ability to mimic fluid-like behaviour.
Burak Ocak, Zafer Evis
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Anti-sound and Acoustical Cloaks
Scientific Bulletin of the ''Petru Maior" University of Tîrgu Mureș, 2016 The principles by which the acoustics can be mimicked in order to reduce or cancel the vibrational field are based on anti-sound concept which can be materialized by acoustic cloaks. Geometric transformations open an elegant way towards the unconstrained control of sound through acoustic metamaterials.
Veturia CHIROIU +4 more
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Journal of EngineeringSignificant research efforts have been conducted by many research groups in the last decades to circumvent the acoustic metamaterial concept limitations.
Giada Colombo +2 more
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Physical Review ResearchMetamaterials are composite structures whose extraordinary properties arise from a mesoscale organization of their constituents. Here, we introduce a different material class—viscosity metafluids.
Prateek Sehgal +5 more
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Design and Processing of Metamaterials
CrystalsMetamaterials represent artificially structured materials that exhibit unusual properties, such as a negative refractive index, negative permeability and permittivity, negative cloaking by Poisson ratios and optical effects, etc., which are inaccessible ...
Andrei Teodor Matei +2 more
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