Correction
Chemistry, Physical
S. Das, Z. Hong, V. A. Stoica, M. A. P. Goncalves, Y. T. Shao, E. Parsonnet, E. J. Marksz, S. Saremi, M. R. McCarter, A. Reynoso, C. J. Long, A. M. Hagerstrom, D. Meyers, V. Ravi, B. Prasad, H. Zhou, Z. Zhang, H. Wen, F. Gomez-Ortiz, P. Garcia-Fernandez, J. Bokor, J. iniguez, J. W. Freeland, N. D. Orloff, J. Junquera, L. Q. Chen, S. Salahuddin, D. A. Muller, L. W. Martin, R. Ramesh
Summary: The correction to the paper has been published.
Article
Crystallography
Jingxuan Zhou, Jie Zhang, Jiahui Chang, Zheng-Yang Li, Dongjia Yan
Summary: Phononic crystals and metamaterials possess topologically protected surface states, which can guide elastic waves without scattering or energy losses. In the field of acoustics, topological insulators show promise in designing efficient and robust acoustic wave guides. This study proposes a novel design of hexagonal metamaterial plates that can generate topologically protected edge waves through active control. The numerical examples demonstrate the robustness and efficiency of the proposed design.
Review
Physics, Applied
Suraj Shankar, Anton Souslov, Mark J. Bowick, M. Cristina Marchetti, Vincenzo Vitelli
Summary: This review focuses on topological defects and topologically protected edge modes in active matter, highlighting their distinctive properties in non-equilibrium systems. The review also emphasizes the significance of topological excitations in non-equilibrium settings.
NATURE REVIEWS PHYSICS
(2022)
Article
Physics, Multidisciplinary
Xiaohan Cui, Ruo-Yang Zhang, Zhao-Qing Zhang, C. T. Chan
Summary: This article presents a scheme to realize disorder-induced symmetry-protected topological phase transitions in two-dimensional photonic crystals, and demonstrates the manifestation of the topological properties through a new scattering approach.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Fude Li, Kang Xue, Xuexi Yi
Summary: This paper explores the topological physics effects in nonlinear optical lattices and finds that a topological phase transition occurs when the band gap at the nonlinear Dirac points closes. By calculating the nonlinear Dirac cone and Berry phase, it is discovered that their dependence on system parameters provides a possible topological number.
Article
Physics, Multidisciplinary
Yuan Yang, Chang-Rong Shu, Xiao-Bing Li
Summary: We investigated the topological properties of a tight-binding model on a two-dimensional ruby lattice with staggered fluxes. By varying the hopping parameters, we obtained tunable Chern-number bands, which could potentially host quantum anomalous Hall insulators at different filling fractions. Interestingly, we also found topological nontrivial bands with a high Chern number of C = -4. The topological phase transitions between different gapped phases were accompanied by the closing and reopening of the energy gap. Additionally, we discovered topological flat bands with a Chern number of C = +1, which could serve as a platform for realizing fractional quantum Hall effect.
Article
Acoustics
Yan Li, Yangjun Luo, Xiaopeng Zhang
Summary: In this study, a multiple band gap topological optimization strategy is proposed to design a two-dimensional phononic crystal with multiple band gaps. The optimized designs achieve multifrequency localization effects in in-plane or out-of-plane modes, promoting the application of phononic crystals in energy harvesting technologies.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Physics, Applied
Anchen Ni, Zhifei Shi
Summary: In this work, a novel inertial amplified topological metamaterial beam is proposed to overcome the large mass limitation for low-frequency topologically protected interface modes. The dynamic characteristics of the system are investigated through detailed analytical and numerical studies. The existence of the topologically protected interface modes is verified through transmission simulation. The lower-frequency Dirac cone and wider local resonance bandgaps are obtained without sacrificing total stiffness or increasing total mass.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Multidisciplinary
Zhiyuan Sun, Andrew J. Millis
Summary: This study demonstrates that an applied electric field in excitonic insulators can induce a p-wave component to the order parameter, leading to a Thouless charge pump. In one dimension, each rotation cycle can pump exactly two electrons across the sample, while higher dimensional systems can be considered as a stack of one-dimensional chains contributing charge pumping channels when crossing the Fermi surface. The study also discusses physics beyond the adiabatic limit, including dissipative effects.
PHYSICAL REVIEW LETTERS
(2021)
Article
Polymer Science
Iurii Chubak, Stanard Mebwe Pachong, Kurt Kremer, Christos N. Likos, Jan Smrek
Summary: In this study, we investigated the active topological glass under spherical confinement to determine the critical exponents of the arrested conformations beyond the previous simulated chain lengths. We discovered a previously unresolved tank-treading dynamic mode of active segments along the ring contour and discussed possible connections of the conformational and dynamic features of the system to chromosomes enclosed in the nucleus of a living cell.
Article
Physics, Multidisciplinary
Aleksandra Nelson, Titus Neupert, Tomas Bzdusek, A. Alexandradinata
Summary: The passage introduces a class of topological insulators that are considered trivial, with a delicate topology that can be nullified by adding trivial bands. This multicellular topology is neither stable nor fragile, but rather intricate in nature.
PHYSICAL REVIEW LETTERS
(2021)
Review
Nanoscience & Nanotechnology
Haoran Xue, Yihao Yang, Baile Zhang
Summary: Topological acoustics is an emerging field that explores the design and construction of artificial structures to manipulate sound waves using topological protection. Recent research has focused on exploring new topological concepts in physical systems. These developments demonstrate the importance of topological acoustic systems in advancing topological physics.
NATURE REVIEWS MATERIALS
(2022)
Article
Multidisciplinary Sciences
Su Kong Chong, Lizhe Liu, Kenji Watanabe, Takashi Taniguchi, Taylor D. Sparks, Feng Liu, Vikram V. Deshpande
Summary: Transport evidence of two-dimensional (2D) topological states in a bulk insulating three-dimensional (3D) topological insulator (TI) is provided. The existence of a finite longitudinal conductance at the surface gap suggests the emergence of a quantum spin Hall (QSH) state. The transition from QSH to quantum Hall (QH) state in a transverse magnetic field further supports the existence of this unique 2D topological phase. Another method of achieving the 2D topological state is demonstrated through surface gap-closing and topological phase transition mediated by a transverse electric field.
NATURE COMMUNICATIONS
(2022)
Review
Optics
Jian Wei You, Zhihao Lan, Qian Ma, Zhen Gao, Yihao Yang, Fei Gao, Meng Xiao, Tie Jun Cui
Summary: Metasurfaces are thin films with subwavelength structures that can control the polarization, phase, and amplitude of light. Recent developments in topological photonics have greatly expanded the design possibilities for metasurfaces in novel applications. This review summarizes recent progress in the field of topological metasurfaces, covering both passive and active systems in the classical and quantum regimes. It discusses passive topological phenomena and cutting-edge studies of active topological metasurfaces, as well as their potential applications in quantum information and many-body physics.
PHOTONICS RESEARCH
(2023)
Article
Physics, Multidisciplinary
Zhehao Ge, Sergey Slizovskiy, Frederic Joucken, Eberth A. Quezada, Takashi Taniguchi, Kenji Watanabe, Vladimir Fal'ko, Jairo Velasco
Summary: Trilayer graphene with Bernal stacking is found to have topological magnetic moments with a large and widely tunable valley g factor, which can be utilized for creating valleytronic devices. The experimental results match well with the theoretical modeling, demonstrating the potential of controlling TLG bands under perpendicular electric and magnetic fields.
PHYSICAL REVIEW LETTERS
(2021)
Article
Acoustics
Zinan Zhao, Weiqiu Chen
Summary: In this article, the extended frequency spectrum quantitative prediction method is used to investigate mode-coupling vibrations in high-frequency thin-film magnetoelectric devices. The results show that the mode-coupling strength is significantly affected by the structural size and number of layers, and structural symmetry along the thickness direction may cause specific mode-decoupling phenomena.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2022)
Article
Materials Science, Multidisciplinary
Yanzheng Wang, Zhengyang Li, Mikhail Golub, Guoliang Huang, Weiqiu Chen, Chuanzeng Zhang
Summary: This paper proposes a new model based on a single periodic structure and introduces arrays of asymmetric and symmetric interfacial delaminations to achieve unidirectional wave propagation in phononic crystals. The numerical results confirm the unidirectional propagation of guided waves induced by interfacial delamination. This study provides a new concept for controlling wave propagation in phononic crystals through the insertion of interfacial delaminations or cracks.
MATHEMATICS AND MECHANICS OF SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Beibei Xu, Jiao Wang, Weiqiu Chen, Bin Liu
Summary: This paper discusses the applicability of dynamic homogenization models in certain dynamic phenomena and investigates various phenomena in heterogeneous materials, such as supersonic propagation and the evolution of energy distribution. The findings pose challenges to the establishment of dynamic homogenization models.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Zhen Yang, Zhicheng Zhang, Chengbin Liu, Cunfa Gao, Weiqiu Chen, Chunli Zhang
Summary: This article investigates the electromechanical coupling behaviors of a hollow piezoelectric semiconductor (PS) composite cylinder and presents analytical solutions for different boundary conditions. The effects of geometric parameters and interface bonding condition on the multifield coupling responses and piezotronic effects are discussed.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Chemistry, Multidisciplinary
Xiaozhao Wang, Junxin Lin, Zonghao Li, Yuanzhu Ma, Xianzhu Zhang, Qiulin He, Qin Wu, Yiyang Yan, Wei Wei, Xudong Yao, Chenglin Li, Wenyue Li, Shaofang Xie, Yejun Hu, Shufang Zhang, Yi Hong, Xu Li, Weiqiu Chen, Wangping Duan, Hongwei Ouyang
Summary: Through studying the knee joint of humans, we have discovered an ultrathin calcified region in the osteochondral interface tissue, which has unique biomolecular compositions and complex nanocrystal structures. Finite element simulations have shown that the modulus of this region exponentially increases, facilitating force transmission. These findings provide new insights for the development of high-performance materials for osteochondral interface regeneration.
Article
Chemistry, Physical
Lifeng Zhu, Zhicheng Zhang, Dejuan Kong, Chengbin Liu, Zhigang Cao, Weiqiu Chen, Chunli Zhang
Summary: In this paper, a two-dimensional phononic crystal sensor based on triboelectric nanogenerators is proposed for real-time monitoring of elastic wave disturbances on buildings and equipment. The sensor can also absorb or suppress vibrations with specific frequencies.
Article
Engineering, Mechanical
Xin Fang, Peng Sheng, Jihong Wen, Weiqiu Chen, Li Cheng
Summary: This study systematically investigates the vibration and sound radiation of nonlinear acoustic metamaterials (NAMs) and proposes two design strategies for achieving ultra-low and broadband vibration and sound radiation suppression. Furthermore, the study clarifies the mechanisms underlying these characteristics.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Ocean
Shuang Zhao, Kuihua Wang, Juntao Wu, Weiqiu Chen, Yuan Tu
Summary: This study investigates the vertical bearing behaviors of flexible batter pile groups in sand. Model tests and finite-element analysis are conducted to study the effects of batter angle on vertical bearing capacities and internal force distributions. A design method is proposed for predicting the bearing ratios of batter pile groups.
MARINE GEORESOURCES & GEOTECHNOLOGY
(2023)
Article
Mechanics
Jiaqing Jiang, Yun Wang, Weiqiu Chen, Rongqiao Xu
Summary: This paper proposes a two-dimensional analytical model for composite beams using the equivalent transformation of cross section. The state equations are derived based on the mixed variational principle and solved using the differential quadrature method. The method allows for convenient handling of transfer characteristics at the interlayer interfaces of composite beams and can serve as benchmarks for various one-dimensional beam theories.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Zhicheng Zhang, Chao Liang, Dejuan Kong, Zhengguang Xiao, Chunli Zhang, Weiqiu Chen
Summary: This study investigates the dynamic buckling and free bending vibration of an axially compressed piezoelectric semiconductor (PS) rod at the nanoscale, and analyzes the effects of surface effect on the critical dynamic buckling loads and damped resonance frequencies. Furthermore, the influences of axial compressive force and initial electron concentration on the effective damping ratio of the vibrating PS rod are studied.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Review
Engineering, Mechanical
Zinan Zhao, Yingjie Chen, Xueyan Hu, Ronghao Bao, Bin Wu, Weiqiu Chen
Summary: This paper reviews the mechanics of dielectric elastomers (DEs), including their dynamic responses, nonlinear electroelasticity, and periodic structures. The research results provide design and solution approaches, and discuss the underlying physics. It offers a useful guide for future studies.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Mechanical
Guozhan Xia, Wei Hong, Weiqiu Chen
Summary: In this paper, a physical model of a layer-substrate system penetrated by a rigid indenter was established to interpret the indentation test of advanced materials. The indentation of a pre-deformed compressible soft electroactive (SEA) layer on an elastic substrate was formulated as a Fredholm integral equation of the second kind and solved using a customized finite-difference scheme. The modified JKR model was used to incorporate surface adhesion for the layer-substrate system. The effects of adhesion and substrate on the indentation responses were investigated for a neo-Hookean ideal dielectric elastomer.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Computer Science, Interdisciplinary Applications
Zonghao Li, Xueyan Hu, Weiqiu Chen
Summary: Topology optimization is a powerful structural design method, but the optimal topologies obtained by the traditional density-based method are difficult to manufacture. The Moving Morphable Components (MMC) approach has been introduced to bridge the gap between design and manufacture. However, the lack of geometric arbitrariness in previous studies remains unsatisfactory.
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
(2023)
Article
Engineering, Mechanical
Hang Hang Xu, Hui Chen Luo, Xue Gang Zhang, Wei Jiang, Xing Chi Teng, Wei Qiu Chen, Jie Yang, Yi Min Xie, Xin Ren
Summary: Auxetic materials have been extensively studied due to their unique mechanical properties and deformation modes. However, their practical engineering applications are limited by their low stiffness. This study combines re-entrant aluminum honeycomb with aluminum foam to enhance the stiffness of auxetic materials. Experimental and numerical investigations on the mechanical properties and deformation modes are conducted, along with the analysis of the effects of geometrical parameters. The proposed auxetic composite structures show promising applications in vehicle engineering, protective engineering, and aerospace engineering due to their superior performance.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Multidisciplinary
Z. Jiao, T. Heblekar, G. Wang, R. Xu, W. Chen, J. N. Reddy
Summary: The dual mesh control domain method (DMCDM) proposed by Reddy combines the advantages of the finite element method (interpolation of variables) and the finite volume method (satisfaction of the global form of the governing equations). This study extends the DMCDM for analyzing plane elasticity problems on non-rectangular domains meshed with arbitrarily shaped elements. The results show that the DMCDM exhibits excellent convergence and accuracy while requiring less computational cost when compared with the finite element method (FEM).
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2023)
Article
Engineering, Mechanical
Rosaria Del Toro, Maria Laura De Bellis, Marcello Vasta, Andrea Bacigalupo
Summary: This article presents a multifield asymptotic homogenization scheme for analyzing Bloch wave propagation in non-standard thermoelastic periodic materials. The proposed method derives microscale field equations, solves recursive differential problems within the unit cell, establishes a down-scaling relation, and obtains average field equations. The effectiveness of this approach is validated by comparing dispersion curves with those from the Floquet-Bloch theory.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Yue Bao, Zhengcheng Yao, Yue Zhang, Xueman Hu, Xiandong Liu, Yingchun Shan, Tian He
Summary: This paper proposes a novel triple-gradient phononic acoustic black hole (ABH) beam that strategically manipulates multiple gradients to enhance its performance. The study reveals that the ABH effect is not solely brought about by the thickness gradient, but also extends to the power-law gradients in density and modulus. The synergistic development of three different gradient effects leads to more pronounced and broader bandgaps in PCs.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Matthias Ryser, Jason Steffen, Bekim Berisha, Markus Bambach
Summary: This study investigates the feasibility of replacing complex experiments with multiple simpler ones to determine the anisotropic yielding behavior of sheet metal. The results show that parameter identifiability and accuracy can be achieved by combining multiple specimen geometries and orientations, enhancing the understanding of the yield behavior.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Wenjun Li, Pengfei Zhang, Siyong Yang, Shenling Cai, Kai Feng
Summary: This study presents a novel two-dimensional non-contact platform based on Near-field Acoustic Levitation (NFAL), which can realize both one-dimensional and two-dimensional transportation. Numerical and experimental results prove the feasibility and ease of this method.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Shuo Liu, Lu Che, Guodong Fang, Jun Liang
Summary: This study presents a novel lamina conjugated bond-based peridynamic (BB-PD) model that overcomes the limitations of material properties and is applicable to composite laminates with different stacking sequences. The accuracy and applicability of the model are validated through simulations of elastic deformation and progressive damage behavior, providing an explanation of the damage modes and failure mechanisms of laminated composite materials subjected to uniaxial loading.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Omar El-Khatib, S. Kumar, Wesley J. Cantwell, Andreas Schiffer
Summary: Sandwich-structured honeycombs (SSHCs) are hierarchical structures with enhanced mass-specific properties. A model capable of predicting the elastic properties of hexagonal SSHCs is presented, showing superior in-plane elastic and shear moduli compared to traditional honeycombs, while the out-of-plane shear moduli are reduced.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Zhi-Jian Li, Hong-Liang Dai, Yuan Yao, Jing-Ling Liu
Summary: This paper proposes a process-performance prediction model for estimating the yield strength and ultimate tensile strength of metallic parts fabricated by powder bed fusion additive manufacturing. The effect of main process variables on the mechanical performance of printed metallic parts is analyzed and the results can serve as a guideline for improvement. The accuracy of the proposed model is validated by comparison with literature.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
Saman A. Bapir, Kawa M. A. Manmi, Rostam K. Saeed, Abdolrahman Dadvand
Summary: This study numerically investigates the behavior of an ultrasonically driven gas bubble between two parallel rigid circular walls with a cylindrical micro-indentation in one wall. The primary objective is to determine the conditions that facilitate the removal of particulate contamination from the indentation using the bubble jet. The study found that the bubble jet can effectively remove contamination from the indentation for certain ranges of indentation diameter, but becomes less effective for larger indentation diameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
Article
Engineering, Mechanical
E. Polyzos, E. Vereroudakis, S. Malefaki, D. Vlassopoulos, D. Van Hemelrijck, L. Pyl
Summary: This research investigates the elastic and damage characteristics of individual composite beads used in 3D printed composites. A new analytical probabilistic progressive damage model (PPDM) is introduced to capture the elastic and damage attributes of these beads. Experimental results show strong agreement with the model in terms of elastic behavior and ultimate strength and strain.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2024)
