Article
Physics, Applied
Guangxin Liao, Congcong Luan, Zhenwei Wang, Jiapeng Liu, Xinhua Yao, Jianzhong Fu
Summary: Acoustic metamaterials have the ability to effectively control wave propagation through special structures, with high transmission efficiency and full range phase shift variations. The designed acoustic metamaterials can manipulate transmission angle according to the generalized Snell's law, and are capable of selective permeability for acoustic filtering. The devices exhibit great potential for applications in various fields.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Zhike Xu, Ling Qin, Wei Xu, Shuhua Fang, Jiyao Wang
Summary: This paper introduces a metasurface design approach using a perforated labyrinthine path coil structure to manipulate acoustic transmission with adjustable resonance peak frequencies and bandgap width for acoustic metamaterials. The theory is validated through simulations and experiments, demonstrating the accuracy of the proposed design method.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Curtis Rasmussen, Andrea Alu
Summary: The efficiency and bandwidth of traditional passive acoustic radiators are severely limited, but these constraints can be overcome by loading a piezoelectric transducer with a non-Foster active circuit, resulting in significantly improved radiation bandwidth and efficiency. Experimental results demonstrate a threefold increase in bandwidth, paving the way for non-Foster acoustic radiation technologies.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Mechanics
A. Hernandez, A. Mora, J. C. Arcos, O. Bautista
Summary: This study analyzes the non-isothermal electro-osmotic fluid flow in a microchannel, considering the Soret effect and temperature-dependent properties. The fluid rheology is modeled using the generalized Phan-Thien-Tanner (gPTT) model. The temperature-dependent physical properties of the fluid, along with the electrical field, induce temperature and pressure gradients, resulting in Joule heating. The gPTT model provides a better fit and flexibility to experimental data compared to the linear form of the Phan-Thien-Tanner model (lPTT), allowing for a wider range of variation in describing the rheological responses of complex fluids.
Article
Engineering, Mechanical
Yongdu Ruan, Xu Liang
Summary: The paper proposes a surface impedance matched method for designing reflective elastic metasurfaces and demonstrates their effective control over reflected waves. The results show that the designed metasurface can accurately redirect reflected waves and efficiently suppress scattering waves, potentially enabling functionalities of flexural wave manipulation.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Xin Wu, Qiao Yan, Ahmadreza Hedayat, Xuemei Wang
Summary: The study investigates the influence of concrete aggregate particle size on the propagation and attenuation of elastic waves. Results show that larger aggregate particles lead to more severe attenuation in wave amplitude, energy spectral density, and frequency, while the elastic wave spectrum center generally decreases with propagation distance.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Mechanical
Xiangzhen Han, Li Li, Chaosheng Mei, Yujin Hu, Xuelin Wang
Summary: This study proposes an acoustic source localization method based on acoustic valley-Hall topological insulators (VHTIs), which uses a thin film to improve directional sound reception and decrease the half-power beamwidth.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Physics, Applied
Wen Kang Cao, Cheng Zhang, Li Ting Wu, Kai Qi Guo, Jun Chen Ke, Tie Jun Cui, Qiang Cheng
Summary: Acoustic metasurfaces have unique wave front manipulation capabilities, but face challenges in achieving different functions in 3D space. A study introduces a tunable acoustic metasurface using digital-coding meta-atoms to adjust reflection phase for wave manipulation, achieving superposition and shift of different scattering patterns.
PHYSICAL REVIEW APPLIED
(2021)
Article
Physics, Applied
Zhihong Xu, Pan Li, Meiyu Liu, Qiujiao Du, Yifan Guo, Pai Peng
Summary: An ultrathin acoustic metasurface made up of an anisotropic three-component resonator is proposed, which can induce nondegenerate dipole resonances at the same resonant frequencies and modulate the phase delay based on polarization direction.
APPLIED PHYSICS EXPRESS
(2022)
Article
Materials Science, Multidisciplinary
Weifeng Jiang, Yangyang Zhu, Guofu Yin, Houhong Lu, Luofeng Xie, Ming Yin
Summary: This study establishes a mapping between the structural topology and the dispersion relation of elastic metamaterials using deep learning approaches. The proposed model accurately predicts the dispersion relation for a given structure and enables the inverse design of near-optimal structures based on the target dispersion relation. The deep learning-based approaches have shown capability in accelerating the design and optimization process, paving the way for new breakthroughs in metamaterials research.
MATERIALS TODAY PHYSICS
(2022)
Article
Physics, Applied
Chengbo Hu, Jingkai Weng, Yujiang Ding, Bin Liang, Jing Yang, Jianchun Cheng
Summary: This study theoretically proposes and experimentally demonstrates a 3D acoustic hyperlens capable of producing super-resolution imaging for broadband airborne sound. The simple nonresonant metamaterial design ensures tessellation of the curved surface and deep-subwavelength resolution, converting evanescent waves into radially propagating modes based on positive extreme anisotropy. The effectiveness of the mechanism is shown through numerical and experimental results, allowing for 3D magnifying super-resolution imaging of small objects containing subwavelength patterns across a wide frequency range. This research opens up possibilities for designing acoustic super-resolution imaging devices and their application in diverse scenarios.
APPLIED PHYSICS LETTERS
(2021)
Article
Acoustics
Benjamin G. Wood, Piotr Kijanka, Hsiao-Chuan Liu, Matthew W. Urban
Summary: Shear wave elastography (SWE) is a method to evaluate mechanical properties of soft tissues, while local phase velocity imaging (LPVI) is a novel method for accurate evaluation of shear wave velocity. The study found that an F-number around 3.0 produces the largest usable area in phase velocity reconstructions.
ULTRASOUND IN MEDICINE AND BIOLOGY
(2021)
Article
Materials Science, Ceramics
M. Lapine, M. Gorlach
Summary: This article revisits several unusual features of metamaterials and metasurfaces in terms of their electromagnetic properties. The properties of multilayered structures are considered, showing that strong spatial dispersion and complex additional boundary conditions occur in one-dimensional assemblies of dielectric layers. Based on this, the nonlinear properties of multilayered structures are analyzed, highlighting the implications of spatial dispersion. Furthermore, the implications of hyperbolic dispersion, available with multilayered structures, for nonlinear processes are briefly reviewed.
CERAMICS INTERNATIONAL
(2023)
Article
Engineering, Civil
Saeed I. Tahir, Abdelbak Chikh, Ismail M. Mudhaffar, Abdelouahe Tounsi, Mohammed A. Al-Osta
Summary: This article investigates the effect of viscoelastic foundations on the dispersion of waves in ceramic-metal functionally graded material (FGM) beams with microstructural defects. A three-unknown sinusoidal integral higher-order shear deformation theory is applied to represent the beam's displacement field. The study examines the impact of viscosity damping on imperfect FG beams using a few-unknowns theory. Results show that the phase velocity is inversely proportional to damping and porosity, and that viscous damping has a stronger influence on wave velocity at lower porosity volume fractions.
GEOMECHANICS AND ENGINEERING
(2023)
Article
Computer Science, Information Systems
Joshua S. Lloyd, Cole G. Ludwikowski, Cyrus Malik, Chen Shen
Summary: Voice assistants are widely used in audio consumer electronic products to facilitate human-machine interactions. However, they are vulnerable to inaudible attacks in the ultrasound range. This study demonstrates that a specially designed acoustic metamaterial filter can effectively mitigate such attacks by modulating the received signals. The filter, made of rigid plates with individual holes, exhibits local resonance phenomena to suppress incoming waves at specific frequencies. Experiments confirm the effectiveness of the filter in distorting attack signals and protecting smart speakers, without affecting normal audible signals. The small size and easy installation of the metamaterial filter make it suitable for various audio products, significantly enhancing the security of voice assistant devices.
Article
Mechanics
Tito Andriollo, Varvara Kouznetsova
Summary: The study reveals that the applicability of Irwin's estimate in metals with particles is questionable when the plastic zone size is comparable to the particle spacing. A new compact formula for plastic zone size is proposed in this scenario where the PZ shape differs from von Mises plasticity expectation.
ENGINEERING FRACTURE MECHANICS
(2021)
Article
Mechanics
A. Waseem, T. Heuze, L. Stainier, M. G. D. Geers, V. G. Kouznetsova
Summary: This paper addresses the two-scale problem of the enriched continuum for transient diffusion problems, proposing a model reduction at the micro-scale and presenting distinct solution methods for the macro-scale enriched continuum through different discretization techniques. Results from the enriched continuum formulation are compared with computational transient homogenization and direct numerical simulations, showing significant computational gains without compromising solution accuracy.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
L. Liu, F. Maresca, J. P. M. Hoefnagels, T. Vermeij, M. G. D. Geers, V. G. Kouznetsova
Summary: Martensite/ferrite (M/F) interface damage is crucial in controlling failure of dual-phase (DP) steels. The complex hierarchical structure of martensite induces heterogeneous and orientation-dependent plastic response, affecting the behavior of the M/F interface. By considering the substructure and morphology features, this study re-evaluates the M/F interface damage initiation mechanism, showing that substructure boundary sliding can trigger M/F interface damage and control the failure behavior of DP steels.
Correction
Mathematics, Interdisciplinary Applications
A. Waseem, T. Heuze, L. Stainier, M. G. D. Geers, V. G. Kouznetsova
COMPUTATIONAL MECHANICS
(2021)
Article
Engineering, Multidisciplinary
Igor Zhilyaev, Nitesh Anerao, Ajay Giri Prakash Kottapalli, Mahmut Cihat Yilmaz, Mustafa Murat, Mostafa Ranjbar, Anastasiia Krushynska
Summary: This study proposes the concept of artificial wings with a periodic pattern, inspired by metamaterials, and explores how the pattern geometry can be used to control the aerodynamic and acoustic characteristics of a wing. The results confirm the feasibility of metamaterial patterns to control the dynamics of flapping flight and can open new perspectives for applications of 3D-printed patterned wings.
BIOINSPIRATION & BIOMIMETICS
(2022)
Article
Engineering, Chemical
Ali Hosseinkhani, Davood Younesian, Anastasiia O. Krushynska, Mostafa Ranjbar, Fabrizio Scarpa
Summary: This paper optimizes the vibro-acoustic response of (non-) auxetic sandwich panels with re-entrant hexagonal honeycomb cores through topology optimization method, reducing noise and lowering sound power level while shifting structural vibration frequencies to lower values desired in industries such as aerospace. The results show that the proposed optimization approach provides additional noise reduction for auxetic sandwich panels compared to existing literature results.
TRANSPORT IN POROUS MEDIA
(2022)
Article
Materials Science, Multidisciplinary
Igor Zhilyaev, Dmitry Krushinsky, Mostafa Ranjbar, Anastasiia O. Krushynska
Summary: This study proposes the use of metamaterials principles and machine-learning techniques to design artificial flexible wing patterns, and demonstrates their practical advantages in enhancing lift.
MATERIALS & DESIGN
(2022)
Article
Physics, Applied
A. E. M. Schmerbauch, A. O. Krushynska, A. Vakis, B. Jayawardhana
Summary: This study proposes a method for designing modular actuation arrays using kirigami metasheets, and calculates the optimal lift-off positions through numerical analysis and a positioning algorithm. The focus is on achieving lift-off motions within a thin, scalable metal sheet.
PHYSICAL REVIEW APPLIED
(2022)
Article
Chemistry, Multidisciplinary
Xingwen Zheng, Amar M. Kamat, Anastasiia O. Krushynska, Ming Cao, Ajay Giri Prakash Kottapalli
Summary: In this study, a whisker-inspired sensor is developed to sense upstream wakes, mimicking the sensing mechanism of seal whiskers. Experimental investigations show that the sensor can successfully detect upstream wakes at a long distance, demonstrating high efficiency and a high signal-to-noise ratio.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
L. Liu, F. Maresca, J. P. M. Hoefnagels, M. G. D. Geers, V. G. Kouznetsova
Summary: A multi-scale model based on microphysics is developed to predict and assess the M/F interface damage in dual-phase steels. The model considers both macro and microstructural scales and determines an effective indicator for interface damage initiation based on microphysics. By conducting interface unit cell simulations, an effective model is identified, enabling efficient prediction of mesoscale M/F interface damage initiation.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2022)
Article
Nanoscience & Nanotechnology
Z. Zhang, A. O. Krushynska
Summary: Shape morphing is an attractive functionality desired in various applications, and it can be achieved using mechanical metamaterials. This study proposes two automated design strategies for programmable shape morphing and validates them on 3D-printed structures. The rose-shaped metamaterial designed in this study exhibits reduced stress concentration and a wide range of tailorable Poisson's ratios.
Review
Nanoscience & Nanotechnology
Anastasiia O. Krushynska, Daniel Torrent, Alejandro M. Aragon, Raffaele Ardito, Osama R. Bilal, Bernard Bonello, Federico Bosia, Yi Chen, Johan Christensen, Andrea Colombi, Steven A. Cummer, Bahram Djafari-Rouhani, Fernando Fraternali, Pavel I. Galich, Pedro David Garcia, Jean-Philippe Groby, Sebastien Guenneau, Michael R. Haberman, Mahmoud I. Hussein, Shahram Janbaz, Noe Jimenez, Abdelkrim Khelif, Vincent Laude, Mohammad J. Mirzaali, Pawel Packo, Antonio Palermo, Yan Pennec, Ruben Pico, Maria Rosendo Lopez, Stephan Rudykh, Marc Serra-Garcia, Clivia M. Sotomayor Torres, Timothy A. Starkey, Vincent Tournat, Oliver B. Wright
Summary: This review article provides a summary of recent advances and hot research topics in nanophononics and elastic, acoustic, and mechanical metamaterials based on the authors' presentations at the EUROMECH 610 Colloquium. Unlike a conventional review, it focuses on the state-of-the-art and emerging research directions in these fields rather than historical viewpoints. The article covers basic definitions, design strategies, analysis techniques, and discussions of challenges and applications in each topic, offering valuable insights for early-career researchers and others interested in these areas.
Article
Materials Science, Multidisciplinary
Sabiju Valiya Valappil, Anastasiia O. Krushynska, Alejandro M. Aragon
Summary: The band-gap frequencies of elastic metamaterials are determined by the material damping in their constituent(s), and their analysis requires substantial computational resources. In this study, an analytical procedure based on the spectral element method (SEM) is proposed to analyze bulk metamaterials with viscoelastic damping as continuous systems. An approximate model based on SEM frame elements is developed to deal with complex geometries.
COMPUTATIONAL MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Zhaohang Zhang, Anastasiia O. Krushynska
Summary: This study explores strategies for programmable shape morphing in patterned tubular structures, allowing mechanical properties to be tailored for different deformation modes. By solving the design problem analytically and experimenting with stereolithography three-dimensional printed cellular tubes, the researchers demonstrate programmable responses for fundamental expansion, bending, and twisting modes. Algorithm-based design strategies are proposed to achieve complex deformation modes, and the potential applications of these structures in fields such as medical stents and robotic grippers are discussed. The findings open up possibilities for multifunctional tubular structures with customizable shapes.
ADVANCED ENGINEERING MATERIALS
(2023)
Review
Materials Science, Biomaterials
Swati Panda, Sugato Hajra, Krystian Mistewicz, Bartlomiej Nowacki, Pichaya In-na, Anastasiia Krushynska, Yogendra Kumar Mishra, Hoe Joon Kim
Summary: Three-dimensional bioprinting technology has attracted significant interest, especially in the medical industry, due to its breakthroughs in synthesizing biomaterials and its potential in replacing damaged tissues and organs. This review paper provides an overview of the current advancements, opportunities, and applications of 3D bioprinting, with a focus on artificial organ development and cancer research.
BIOMATERIALS SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Yanzheng Wang, Qian Wu, Yiran Tian, Guoliang Huang
Summary: This paper proposes the microstructure design of an odd plate and investigates the directional wave energy amplification and the presence of interface waves in odd plates through theoretical and numerical analysis. The research findings contribute to the understanding of elastic behavior in 2D non-Hermitian systems.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
F. Greco, D. Codony, H. Mohammadi, S. Fernandez-Mendez, I. Arias
Summary: This study overcomes the difficulty of harnessing the flexoelectric effect by designing multiscale metamaterials. Through topology optimization calculations, we obtain optimal structures for various apparent piezoelectric properties and find that low-area-fraction lattices are the preferred choice. The results show competitive estimations of apparent piezoelectricity compared to reference materials such as quartz and PZT ceramics.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Xiaoxuan Zhang, Tryaksh Gupta, Zhenlin Wang, Amalie Trewartha, Abraham Anapolsky, Krishna Garikipati
Summary: This study presents a computational framework for coupled electro-chemo-(nonlinear) mechanics at the particle scale in solid-state batteries, including interfacial fracture, degradation in charge transfer, and stress-dependent kinetics. The discontinuous finite element method allows for arbitrary particle shapes and geometries.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Chengguan Zhang, Xavier Balandraud, Yongjun He
Summary: The coexistence of both austenite and martensite is a common characteristic in Shape Memory Alloys (SMAs). The multiple-domain microstructures, consisting of austenite, martensite twins, and individual martensite variants, evolve collectively during the phase transformation, affecting the material's macroscopic response. This paper presents an experimentally observed interface consisting of five domains in a Ni-Mn-Ga single-crystal, and analyzes the effects of thermal loading path and material initial state on the domain pattern formation.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Shaobao Liu, Haiqian Yang, Guang-Kui Xu, Jingbo Wu, Ru Tao, Meng Wang, Rongyan He, Yulong Han, Guy M. Genin, Tian Jian Lu, Feng Xu
Summary: The balance between stress and adhesion plays a crucial role in governing the behaviors of adherent cells, such as cell migration. In certain microenvironments, such as tumor, variations in hydrostatic pressure can significantly impact cell volume and adhesion, which in turn affects cell behavior.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Xun Xiong, Qinglei Zeng, Yonghuan Wang, Ying Li
Summary: In this work, the authors investigate the possibility of enhancing the resistance to crack growth in brittle materials through microstructure design. They establish a computational framework to simulate crack propagation and characterize fracture energy. The effects of different types of voids on toughening mechanisms are explored, and the critical conditions for embrittlement-toughening transition are identified. The study also discusses the difference between void toughening in brittle and ductile materials, and extends the toughening strategy to nacre-like materials.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Huan Wang, Yong-Quan Liu, Jiu-Tao Hang, Guang-Kui Xu, Xi-Qiao Feng
Summary: This study establishes a cytoarchitectural model to accurately capture the buckling and postbuckling behaviors of epithelia under fast compression. The stress evolution of epithelia is divided into three stages: loading, phase transition, and stress recovery. The postbuckling process is governed by the active tension generated by the actomyosin network. The study also proposes a minimal model that predicts the flattening time and stress recovery extent as functions of applied strain or strain rate, in agreement with simulations and experiments.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Lei Liu, Hao Liu, Yuming He, Dabiao Liu
Summary: This study investigates the mechanics and topologically complex morphologies of twisted rubber filaments using a combination of experiment and finite strain theory. A finite strain theory for hyperelastic filaments under combined tension, bending, and torsion has been established, and an experimental and theoretical morphological phase diagram has been constructed. The results accurately determine the configuration and critical points of phase transitions, and the theoretical predictions agree closely with the measurements.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Abhishek Painuly, Kunnath Ranjith, Avinash Gupta
Summary: This paper analyzes the interfacial waves caused by frictional slipping and studies their dispersion relation and wave modes. By studying the slip waves in a geophysical model, the surface wave dispersion phenomenon is explored, and an alternative explanation is proposed.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Houlin Xu, Joshua Vievering, Hoang T. Nguyen, Yupeng Zhang, Jia-Liang Le, Zdenek P. Bazant
Summary: Motivated by the extraordinary strength of nacre, this study investigated the probabilistic distribution of fishnet strength using Monte Carlo simulations and found that previous analytical solutions are not applicable for fishnets with a large number of links. By approximating large-scale fishnets as a continuum with cracks or holes, the study revealed that the strength distribution follows the Weibull distribution. This new model has significance for optimizing the strength-weight ratio in printed material structures.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Souhayl Sadik, Arash Yavari
Summary: This paper revisits the mathematical foundations of nonlinear viscoelasticity and studies the geometry of viscoelastic deformations. It discusses the decomposition of the deformation gradient into elastic and viscous distortions and concludes that the viscous distortion can only be a two-point tensor. The governing equations of nonlinear viscoelasticity are derived and the constitutive and kinetic equations for various types of viscoelastic solids are discussed.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Wen Cheng, Hongkuan Zhang, Yu Wei, Kun Wang, Gengkai Hu
Summary: In this study, we propose a phenomenon similar to Thouless pumping for a continuous in-plane elastic system, enabling topological transport of elastic waves through spatial modulation of material elasticity. By incorporating specific lattice microstructures, termed pentamode materials, precise and robust control over elastic wave propagation is achieved.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
Article
Materials Science, Multidisciplinary
Linda Werneck, Mertcan Han, Erdost Yildiz, Marc-Andre Keip, Metin Sitti, Michael Ortiz
Summary: We have developed a simple model that describes the ionic current through neuronal membranes by considering the membrane potential and extracellular ion concentration. The model combines a simplified Poisson-Nernst-Planck model of ion transport through individual ion channels with channel activation functions calibrated from experimental data. The calibrated model accounts for the transport of calcium, sodium, potassium, and chloride and shows remarkable agreement with experimentally measured current-voltage curves for human neural cells.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
(2024)
