Results 111 to 120 of about 3,581 (229)

Thermo‐Mechanical Topology Optimization: An Immersed FEM Level‐Set‐Based Approach

International Journal for Numerical Methods in Engineering, Volume 127, Issue 15, 15 August 2026.
ABSTRACT This paper proposes a multi‐physics framework for topology optimization using an immersed level set‐finite element model. The work extends the capabilities of a recently developed immersed level‐set method to thermo‐mechanical problems, including coupling and material‐dependent properties.
Farzad Tatar, Silvia Monchetti, Elisabetta Manconi, Roberto Brighenti   +3 more
wiley   +1 more source

Ventilated Hexagonal acoustic Metamaterial plate based on sided branches Helmholtz resonators with multiple local resonances [PDF]

The development and application of noise control strategies on subwavelength regimes have thus demanded a continuous effort by several researchers. In this context, the advent of acoustic metamaterials arose as a novel strategy for the manipulation and
Francesco Pompoli, Paulo Amado-Mendes, Denilson Ramos, Luis Godinho, Paulo Mareze   +4 more
core  

Recent Advances in Soft Acoustic Metamaterials: A Comprehensive Review of Geometry, Mechanisms, and System Responsiveness

Applied Sciences
Acoustic metamaterials (AMs) are artificially structured materials composed of subwavelength units that enable acoustic phenomena not achievable with conventional materials and structures.
Ju-Hee Lee, Haesol Kwak, Eunjik Kim, Min-Woo Han   +3 more
doaj   +1 more source

Acoustic Transmission Characteristics Based on H-Type Metamaterials

IEEE Access, 2019
To achieve the artificial manipulation of the acoustic wave front, and to produce high-efficiency acoustic focusing effect, this paper designed an $H$ -type locally resonant metamaterial structure based on a two-dimensional three-component local ...
Shuai Tang, Jianning Han
doaj   +1 more source

Toward Enhanced Inertial Sensing via Dynamically Soft Topological States in Piezoelectric Microacoustic Metamaterials

Advanced Functional Materials, Volume 36, Issue 62, 3 August 2026.
A piezoelectric microacoustic wave device exploiting topologically protected interface states with significantly higher dynamic compliance than Lamb or Rayleigh modes achieves record‐high out‐of‐plane particle velocities exceeding 51 m/s. These findings indicate that leveraging topological interface states can overcome key limitations of piezoelectric ...
Onurcan Kaya, Niccolò Scalise Pantuso, Marco Galli, Jacopo M. De Ponti, Tommaso Maggioli, Davide Pavesi, Siddhartha Ghosh, Attilio Frangi, Luca Colombo, Benyamin Davaji, Matteo Rinaldi, David Horsley, Cristian Cassella   +12 more
wiley   +1 more source

Acoustic cloaking of spherical objects using thin elastic coatings [PDF]

, 2012
textIn this thesis, a detailed description of acoustic cloaking is put forth using a coating consisting of discrete layers, enabling the cancellation of the scattered field around the object.
Guild, Matthew David, 1982-
core   +1 more source

Asymmetric frequency conversion with acoustic non-Hermitian space-time varying metamaterial [PDF]

, 2021
We experimentally realize an acoustic non-Hermitian spacetime varying metamaterial using digital virtualized resonating meta-atoms. By temporally modulating the material gain and loss, we can diminish the main band and achieve high efficiency frequency ...
Zhu, Xinghong, Wen, Xinhua, Fan, Alvin, Lemoult, Fabrice, Fink, Mathias, Li, Jensen, Tam, Wing Yim, Zhu, Jie   +7 more
core  

Topology‐Orchestrated Multi‐physical Energy Control in Turtle Shell‐Inspired Metamaterials

Advanced Materials, Volume 38, Issue 47, 21 August 2026.
A turtle shell‐inspired lattice metamaterial efficiently manages acoustic, fluid‐thermal, and mechanical energy flows simultaneously. The unique hybrid‐coupling architecture achieves superior sound attenuation via pore‐cavity resonance, facilitates effective airflow transport, and maximizes mechanical energy absorption through multistage cell ...
Xi Wang, Shiyi Wang, Bingzhi Chen, Xinwei Li   +3 more
wiley   +1 more source

Quasi-two-dimensional acoustic metamaterial with negative bulk modulus [PDF]

, 2012
We present the experimental realization and characterization of an acoustic metamaterial with negative bulk modulus. The metamaterial consists of a two-dimensional array of cylindrical cavities, and the bulk modulus is controlled by their radius size and
Cervera Moreno, Francisco Salvador, Torrent Martí, Daniel, Sánchez-Dehesa Moreno-Cid, José, Graciá Salgado, Rogelio, García Chocano, Víctor Manuel   +4 more
core   +1 more source

Modeling and investigation of a multi-resonant metamaterial sound insulator

Archives of Acoustics
A design of multi-resonant acoustic metamaterial sound insulator is proposed to attenuate multi-tonal and broadband noise. The unit cell of the metamaterial consists of a porous material with four, nine, and sixteen embedded Helmholtz resonators and its
Zacharie Laly, Raymond Panneton, Noureddine Atalla, Sebastian Ghinet   +3 more
doaj   +1 more source