Article
Engineering, Mechanical
Gang Wang, Shaoke Wan, Jun Hong, Shuo Liu, Xiaohu Li
Summary: This paper presents modeling techniques and design strategies for local resonance elastic metamaterial beams with multiple resonators to improve vibration suppression properties over a wide frequency range. The effects of frequency spacing, damping, and mass ratio on the vibration attenuation characteristics are comprehensively investigated. The comparison of experimental and simulation results demonstrates the effectiveness of the proposed design strategies.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2023)
Article
Physics, Applied
Lei Fan, Ye He, Xiao-an Chen, Xue Zhao
Summary: This study presents an optimization scheme based on frequency response functions for locally commonly used locally resonant metamaterial beams, considering resonant frequencies and distribution locations of resonators. Using a single-objective genetic algorithm, optimal solutions for prescribed bandgap targets were determined without increasing resonator mass. This indicates the potential of adjusting resonator locations and frequencies in metamaterial beams beyond periodic structures.
JOURNAL OF APPLIED PHYSICS
(2021)
Article
Engineering, Mechanical
Youchuan Zhou, Lin Ye, Weiqiu Chen
Summary: This study investigates a novel hybrid metamaterial (HMM) fabricated using 3D printing based on selective laser sintering technology, showing potential advantages in wave attenuation and impact mitigation applications. The HMM exhibits a local resonance mechanism and negative Poisson's ratio properties, with bandgaps that can be flexibly tailored by adjusting geometrical configurations. Numerical and experimental exploration of the wave attenuation capacity of the HMM demonstrates its superior performance compared to traditional reentrant structures.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(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
Engineering, Civil
Yuhao Liu, Jian Yang, Xiaosu Yi, Wenjie Guo, Qingsong Feng, Dimitrios Chronopoulos
Summary: This paper presents a diatomic-chain locally resonant acoustic metamaterial (LRAM) structure with a negative stiffness mechanism for enhanced vibration suppression. By studying the bandgap properties of the diatomic configuration, it is shown that introducing two extra bandgaps can enhance performance benefits. Converting a monoatomic configuration into a diatomic configuration is beneficial. A dispersion relation analysis reveals new phenomena in vibration power flow and wave transmittance, demonstrating the potential application of negative stiffness for performance improvement.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Mechanical
Yingli Li, Shiguang Yan, Hao Li
Summary: This paper focuses on the wave propagation behavior and vibration characteristics of an elastic auxetic metamaterial composed of hinged rotating rigid squares. Theoretical analysis and experimental verification show that a complete bandgap can be achieved with proper parameter configuration, leading to better vibration control capability.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Multidisciplinary Sciences
Arpan Gupta, Rishabh Sharma, Aman Thakur, Preeti Gulia
Summary: This work proposes a 2D metamaterial foundation for seismic protection of buildings. A new type of metamaterial structure consisting of repeating circular scatterers made of steel and plumbum embedded in a rubber matrix was found to provide low and wide frequency wave attenuation from 2.6 to 7.8 Hz. The results show that the novel foundation can effectively resist the propagation of seismic waves and significantly reduce the vibration of the building frame compared to a concrete foundation.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Multidisciplinary
Wen-Zheng Que, Xiao-Dong Yang, Huayan Pu
Summary: In this study, a novel lever-type elastic metamaterial model is designed to attenuate low-frequency waves. The dispersion relation and effective mass expression are derived, and the band structure characteristics and parameter effects on the band gap are analyzed. The results show that a low-frequency band gap can be obtained and the wave attenuation capability within the gap can be enhanced. The proposed structure's dynamic response is verified through numerical integration, and its potential application in shock wave attenuation is demonstrated.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Engineering, Mechanical
Chaosheng Mei, Li Li, Xiaobai Li, Yiyuan Jiang, Xiangzhen Han, Haishan Tang, Xuelin Wang, Yujin Hu
Summary: The concept of spatiotemporal damping is proposed to quantify the inherent wave attenuation property of dissipative metamaterials. The concept of spatiotemporal damping is more general compared to its counterparts in previous studies such as band gap and damping. Spatiotemporal damping results from the coupling effect of energy dissipation and energy scattering, and the coupling mechanism is revealed in this study.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Engineering, Mechanical
Di Mu, Keyi Wang, Haisheng Shu, Jiahao Lu
Summary: In this study, a novel local resonant metamaterial (LRM) beam with elastic foundation is proposed and its bandgap characteristics and the effects of structural parameters are investigated. Experimental results validate the theoretical findings, and three methods for bandgap widening are proposed. This research provides guidance for low and ultra-low frequency broadband flexural waves and vibration control.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Acoustics
Changqi Cai, Jiaxi Zhou, Kai Wang, Daolin Xu, Guilin Wen
Summary: In this study, a novel metamaterial plate with attached compliant quasi-zero-stiffness resonators is proposed to achieve wave attenuation at ultra-low frequencies. The theoretical investigations and experimental results demonstrate that the QZS metamaterial plate exhibits excellent attenuation in the ultra-low-frequency band gaps.
JOURNAL OF SOUND AND VIBRATION
(2022)
Article
Chemistry, Physical
Jiawen Xu, Hang Lu, Weiyang Qin, Ping Wang, Jie Bian
Summary: A novel piezoelectric metamaterial beam that utilizes mechanical shunt resonators is proposed in this research, which can achieve elastic wave attenuation under large-amplitude excitations.
Article
Engineering, Mechanical
Changqi Cai, Jiaxi Zhou, Kai Wang, Hongbin Pan, Dongguo Tan, Daolin Xu, Guilin Wen, John E. Mottershead
Summary: This paper proposes a novel metamaterial beam with an embedded quasi-zero-stiffness resonator to achieve wave attenuation in very low-frequency band gaps. The configuration of the quasi-zero-stiffness resonator is developed using compliant mechanism with design optimization, and the characteristic of quasi zero stiffness is achieved by proper pre-compression. The dispersion relations of the metamaterial beam are derived using the transfer matrix method, and the dynamic responses of the beam are obtained using the spectral element method to evaluate the transmittance of the flexural wave. Experimental investigation verifies the formation mechanism of the band gaps, demonstrating very low-frequency band gaps. Therefore, the QZS metamaterial beam holds promise for low wave attenuation.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Chemistry, Physical
Xiling Liu, Feng Xiong, Qin Xie, Xiukun Yang, Daolong Chen, Shaofeng Wang
Summary: The study found that the attenuation coefficient of high-frequency elastic waves has an approximate power relationship with frequency for the entire waveform packet, while the power relationship between the attenuation coefficient and frequency for specific frequency components indicates that this relationship is rock-type dependent.
Article
Engineering, Geological
Q. H. Yang, M. Wang, X. Zhao, L. F. Fan
Summary: The present study investigates the influence of frequency-temperature coupling on wave propagation through granite. Pendulum impact test was conducted on thermally treated long granite bars. Wave propagation coefficients, including attenuation ratio and wave velocity, were determined for granite under different frequencies of high-temperature and incident waves. The study revealed a relationship between the dynamic modulus of granite, stress wave frequency, and high temperature. It was found that the attenuation ratio, wave velocity, and dynamic elastic modulus increased with frequency, while the attenuation ratio increased and the wave velocity and dynamic elastic modulus decreased with temperature. The proposed relationship between dynamic modulus, frequency, and temperature can efficiently describe the frequency-temperature coupling effects on granite with an acceptable error. This study has potential applications in wave propagation through granite in high-temperature environments.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2023)
Article
Engineering, Mechanical
Bing Li, Yongquan Liu, Kwek-Tze Tan
JOURNAL OF SANDWICH STRUCTURES & MATERIALS
(2019)
Article
Physics, Applied
Bing Li, Zheng Li, Johan Christensen, K. T. Tan
APPLIED PHYSICS LETTERS
(2019)
Article
Acoustics
Sagr Alamri, Bing Li, Garrett Mchugh, Nicholas Garafolo, K. T. Tan
JOURNAL OF SOUND AND VIBRATION
(2019)
Article
Physics, Applied
Suobin Li, Yihua Dou, Tianning Chen, Zhiguo Wan, Jingjing Huang, Bing Li, Fan Zhang
MODERN PHYSICS LETTERS B
(2019)
Article
Physics, Multidisciplinary
Suobin Li, Yihua Dou, Tianning Chen, Jianning Xu, Bing Li, Fan Zhang
Article
Engineering, Civil
Hamed Kalhori, Mehrisadat Makki Alamdari, Bing Li, Ben Halkon, Seyedeh Marzieh Hosseini, Lin Ye, Zheng Li
INTERNATIONAL JOURNAL OF STRUCTURAL STABILITY AND DYNAMICS
(2020)
Review
Materials Science, Composites
Xiaohui Zhang, Xujiang Chao, Lun Lou, Jintu Fan, Qing Chen, Bing Li, Lin Ye, Dahua Shou
Summary: Personal thermal management is critical for comfort and performance, with thermally conductive composites receiving significant attention in enhancing warming and cooling effects. Various implementations, from fibers and yarns to fabrics and wearable technologies, can improve cooling and warming performance.
COMPOSITES COMMUNICATIONS
(2021)
Article
Polymer Science
Heyuan Huang, Ertai Cao, Meiying Zhao, Sagr Alamri, Bing Li
Summary: The study introduces the design concept of bionic configuration philosophy into membrane-type acoustic metamaterials to achieve wide sound-attenuation bands in the low frequency range. Two bio-inspired designs show significant sound attenuation with lightweight performance in comparison to traditional MAM configurations.
Article
Physics, Multidisciplinary
Yabin Hu, Yunhao Zhang, Guangyuan Su, Meiying Zhao, Bing Li, Yongquan Liu, Zheng Li
Summary: Guiding classical waves is crucial for many technologies, but achieving high-efficiency, omnidirectional performance is challenging. In this study, researchers propose an ultrathin, broadband elastic metagrating for suppressing diffraction and guiding waves along any path. This waveguide exhibits compact size, robust performance, and easy fabrication, making it a promising design paradigm for various wave control applications.
COMMUNICATIONS PHYSICS
(2022)
Editorial Material
Chemistry, Analytical
Yongbo Li, Bing Li, Jinchen Ji, Hamed Kalhori
Editorial Material
Chemistry, Analytical
Yongbo Li, Bing Li, Jinchen Ji, Hamed Kalhori
Article
Materials Science, Multidisciplinary
Bing Li, Chao Zhang, Fang Peng, Wenzhi Wang, Bryan D. Vogt, K. T. Tan
Summary: This study introduces and demonstrates a tunable, locally resonant structural waveguide based on 3D printing, using shape memory polymer modules to achieve active vibration bandgap switching and elastic wave manipulation successfully.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Engineering, Aerospace
Fan Zhang, Fei Shen, Biaobiao Li, Baohui Yuan, Bing Li
INTERNATIONAL JOURNAL OF AEROSPACE ENGINEERING
(2020)
Article
Physics, Applied
Bing Li, Yabin Hu, Jianlin Chen, Guangyuan Su, Yongquan Liu, Meiying Zhao, Zheng Li
PHYSICAL REVIEW APPLIED
(2020)
Article
Materials Science, Composites
M. H. Khan, Bing Li, K. T. Tan
JOURNAL OF COMPOSITES SCIENCE
(2020)
Article
Engineering, Mechanical
A. P. Simonov, I. V. Sergeichev
Summary: The direct impact method provides a higher sample deformation rate and reliable results for materials with low yield strength and hardening rate. This study proposes an alternative procedure for calculating the strain rate in order to improve accuracy of the direct impact method for a wide range of metals and alloys. The proposed method has been validated through finite element analysis and direct impact tests, and it qualitatively changes the shape of the stress-strain curve by adding an unloading area.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Qiang Wei, Zifeng Li
Summary: This study investigates the dynamic bifurcation of a column when it impacts a rigid plane vertically, which is different from the classical Eulerian static buckling. The findings show that either the dimensionless critical buckling time or the dimensionless critical buckling velocity can be used to determine whether buckling has occurred. Different dimensionless initial defects in the column result in different dimensionless displacement responses, and the nonlinear effect influences the analysis results.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
M. C. Price, M. J. Cole, K. H. Harriss, L. S. Alesbrook, M. J. Burchell, P. J. Wozniakiewicz
Summary: This article introduces a new gas gun developed at the Centre for Astrophysics and Planetary Science, University of Kent, which can produce vertical impacts at speeds up to 2 km/s. The gun design, assembly, operation, and ancillary components are described in detail. The experimental results demonstrate that the gun performs as expected.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Fanny Gant, Gabriel Seisson, Patrice Longere, Skander El Mai, Jean-Luc Zinszner
Summary: The article investigates the high strain rate response of metals and alloys under radial expansion and compares different materials. The results show that different materials exhibit different responses in terms of deformation and fracture.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
M. D. Fitzgerald, J. D. Pecover, N. Petrinic, D. E. Eakins
Summary: This study investigates the mechanism for the destruction of thick flyers accelerated using electric guns and proposes strategies for mitigating their break-up based on experimental results and mathematical models. The findings suggest that limiting the maximum pressure within the flyer and extending the current rise time can prevent flyer failure, increasing the efficiency and shock duration of the electric gun.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Guowen Gao, Enling Tang, Guolai Yang, Yafei Han, Mengzhou Chang, Kai Guo, Liping He
Summary: In this study, the dynamic constitutive model of Al/Ep/W material was investigated and verified through experiments and numerical simulations. The proposed model accurately described the mechanical behavior of the material under high strain rates, providing an important reference for evaluating the response characteristics of the new energetic material projectile to lightweight aluminum armor.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Minzu Liang, Meng Zhou, Xiangyu Li, Yuliang Lin, Fangyun Lu
Summary: UHMWPE fiber mesh reinforced polyurea composites improve structural strength and blast resistance performance, and can alter the failure mode. Loose filler is generated as polyurea melts and fragments penetrate. Joint loads are classified into three categories based on their connection and duration.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Ashutosh Jha, Guglielmo Cimolai, Iman Dayyani
Summary: The present article introduces the Zero Poisson's Ratio Fish Cells metamaterial and investigates the effects of Poisson's ratio on the crashworthiness of different lattice structures. Numerical results demonstrate that the Zero Poisson's Ratio model possesses greater stability and structural integrity with minimal edge deformations.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Hongbo Zhang, Dayong Hu, Xubin Ye, Xin Chen, Yuhuai He
Summary: This study investigated the impact of spherical foreign objects on simulated blade edges through experimental and theoretical analysis. The experimental results showed that increasing impact energy resulted in larger damage sizes, and three distinct types of deformations were observed in FOD. Accurate FOD prediction models were developed using linear and power formulas. The theoretical analysis using a spring-mass system based on Winkler's elastic-plastic foundation theory yielded results in good agreement with experimental measurements, providing a reference for fatigue life assessment of aeroengine blades.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
L. M. Reitter, Y. A. Malik, A. B. Jahn, I. V. Roisman, J. Hussong
Summary: This study characterizes the dynamic strength of wet granular ice layers through impact tests. The results reveal strong connections between ice particles in ice layers generated by ice crystal accretion. Comparable strength values can be obtained by reinforcing ice particle connections in ice layers prepared in the laboratory.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Kyle Mao, Genevieve Toussaint, Alexandra Komrakova, James D. Hogan
Summary: In this study, the Generalized Incremental Stress State dependent damage MOdel (GISSMO) is used to simulate the high-velocity impact failure of Armox 500T steel. The GISSMO is calibrated and validated using experimental data from the literature, and is then applied to investigate the impact failure behaviors of bi-layered steel systems. The results provide new capabilities and insights for the design of armor structures and evaluation of impact failure behaviors in Armox 500T/RHA bi-layered systems.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Asim Onder
Summary: This paper investigates the performance of bumper plates with wavy surfaces under hypervelocity impact and finds that they are more effective in decreasing the impact energy compared to flat plates. The study also reveals the distinctive debris cloud generation that has never been reported before.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Zhi-Yong Yin, Xiao-wei Chen
Summary: This study numerically reveals three typical fracture modes of explosively-driven metal shells and investigates the influencing factors of different fracture modes through experimental data and dimensional analysis.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Jiri Pachman, David J. Chapman, Marek Foglar, Martin Kunzel, William G. Proud
Summary: Through the study of different types of concrete, it was found that despite their compositional complexity, range of compressive strengths, and reinforcement methods, the average Hugoniot data were remarkably similar between different concrete types.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
Article
Engineering, Mechanical
Konstantin Kappe, Klaus Hoschke, Werner Riedel, Stefan Hiermaier
Summary: This paper presents a multi-objective optimization procedure for effectively designing gradient lattice structures under dynamic loading. The aim is to maximize energy absorption characteristics and achieve a lightweight design. Through considering design variables such as the relative density and density gradient, the peak crushing force reduction and maximized specific energy absorption are simultaneously optimized. A simplified beam-based finite element model is used to efficiently model and simulate the lattice structures. An artificial neural network is trained to predict energy absorbing characteristics and find optimal lattice structure configurations. The network is trained using a multi response adaptive sampling algorithm, allowing parallel simulation with automatically generated finite element models. A multi-objective genetic algorithm is then used to find optimal combinations of design parameters for lattice structures under different impact velocities and cell topologies.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2024)
