Article
Materials Science, Multidisciplinary
Chunyu Xu, Peijun Wei, Zibo Wei, Xiao Guo
Summary: In this paper, the effects of different doping types in the covering layer and the presence of a PN junction on the propagation of Rayleigh waves in a transversely isotropic piezoelectric semiconductor substrate were investigated. The results showed that the semiconductor material slows down and attenuates the Rayleigh waves, while the PN junction significantly affects the wave-mode shapes.
MATHEMATICS AND MECHANICS OF SOLIDS
(2023)
Article
Mathematics, Applied
Lele Zhang, Jing Zhao, Guoquan Nie, Jinxi Liu
Summary: This study investigates the dispersion properties of Rayleigh-type surface waves in a layered piezoelectric nanostructure. Surface effects, including surface stresses and surface electric displacements, are taken into account. Concrete expressions of the dispersion equation are derived, and numerical results show the effects of surface-related parameters on the dispersion modes and phase velocity. Size-dependent dispersion behaviors are also predicted.
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
(2022)
Article
Engineering, Mechanical
Hongsheng Yang, Yulong Li, Fenghua Zhou
Summary: This study investigates stress wave generation and propagation in a semi-infinite Rayleigh-Love rod due to impact using analytical methods. Three specific problems were solved and explicit analytical solutions were obtained which agree well with numerical simulations. The hyper-viscoelasticity property of a Rayleigh-Love rod is highlighted and dispersive features of stress wave generation and propagation are demonstrated through examples.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2022)
Article
Mechanics
Sergey Kuznetsov
Summary: Lamb waves propagating in a layered structure with equal acoustic impedances are studied. The dispersion portraits can distinguish individual layers, even if their acoustic impedances are identical. The developed methodology is adequate for determining geometrical and physical properties of the individual layers with equal acoustic impedances.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Guangying Yang, Minghua Zhang, Jianke Du, Xi Chen
Summary: The propagation of Love wave in a phononic crystal consisting of a superlattice lithium niobate substrate carrying a piezoelectric waveguide layer is analyzed. The imperfect interface between the waveguide layer and the substrate is described using a shear spring model. Numerical results show that as the interface imperfection increases, the bandgap shifts to lower frequency and the bandwidth decreases. Moreover, finite element simulation calculations reveal that a perfect interface leads to more effective bandgap attenuation.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
J. G. Yu, B. Zhang, L. Elmaimouni, X. M. Zhang
Summary: In this study, the influence of axial initial stress on wave characteristics of sectorial cylindrical structures was analyzed using the double-orthogonal polynomial method. It was found that the initial stress applied on the outer layer has a significant impact at low frequencies, while the inner layer's initial stress has a significant impact at high frequencies. Cut-off frequencies are negatively related to the cross-section area.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2021)
Article
Education, Scientific Disciplines
Fatimah Salem Bayones, Nahed Sayed Hussein, Abdelmooty Mohamed Abd-Alla, Amnah Mohamed Alharbi
Summary: This paper presents a mathematical model of Love-type wave propagation in a heterogeneous transversely isotropic elastic layer subjected to initial stress and rotation. The frequency equation of Love-type wave is obtained and the dispersion equation is determined to study the effects of various parameters on wave propagation. Analytical and numerical solutions are obtained using the separation of variables method and the bisection method implemented in MATLAB. The results show a general dispersion relation and numerical analysis of wave propagation behavior in different elastic media, with agreement found with classical cases in isotropic and transversely isotropic layers. Graphical presentations are used to assess the effects of various parameters on plane wave propagation.
Article
Education, Scientific Disciplines
Fatimah Salem Bayones, Nahed Sayed Hussein, Abdelmooty Mohamed Abd-Alla, Amnah Mohamed Alharbi
Summary: This paper presents a mathematical model for Love-type wave propagation in a heterogeneous transversely isotropic elastic layer with initial stress and rotation on a rigid foundation. The frequency equation of Love-type wave is obtained in closed form. The effects of various parameters on the wave propagation are studied using analytical and numerical methods, showing good agreement with classical cases in isotropic and transversely isotropic layers.
Article
Multidisciplinary Sciences
Florian Le Pape, David Craig, Christopher J. Bean
Summary: Through seismic observations and simulations, it was found that Love wave microseisms mainly originate from steep subsurface geological interfaces and bathymetry, rather than being directly influenced by ocean wave climate. They are significantly modulated by continental margin morphologies, with a first order effect from sedimentary basins.
NATURE COMMUNICATIONS
(2021)
Review
Geochemistry & Geophysics
Yudi Pan, Lingli Gao
Summary: Shallow-seismic full-waveform inversion (FWI) is an effective method for accurate reconstruction of near-surface models. However, it suffers from ill-posedness and high computational cost. The recently proposed random-objective waveform inversion (ROWI) method shows better efficiency and robustness than FWI.
SURVEYS IN GEOPHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Haozhe Jiang, Zhanhua Cai, Lili Yuan, Tingfeng Ma, Jianke Du, Ji Wang
Summary: The study aims to investigate the characteristics of SH waves in periodic cement-based piezoelectric layered barriers and analyze the effects of geometric parameters, material parameters, and initial stress on band structures. The research reveals that factors such as the number of unit cells, initial stress, and material parameters significantly impact the band gap in the periodic barrier. This work provides a new avenue for the design of wave barriers.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2022)
Article
Engineering, Mechanical
Neetu Malik, Jitander Singh Sikka
Summary: This study analyzed the effect of initial stresses on the propagation of Love-type waves in a fiber-reinforced viscoelastic layer. The study aimed to investigate the impact of factors such as initial stresses, viscoelastic properties, thickness ratio, inhomogeneity, and reinforcement on wave propagation in the layered structure.
JOURNAL OF VIBRATION ENGINEERING & TECHNOLOGIES
(2023)
Article
Materials Science, Multidisciplinary
Abhishek Kumar Singh, Siddhartha Koley, Anil Negi
Summary: This study analyzes the scattering of Love-type waves in a composite structure and investigates the effects of the upper layer's piezoelectricity parameters on the scattered waves.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Acoustics
Kunpeng Chen, Zhi Wu, Yuan Jin, Jianying Hu, Jianke Du, Minghua Zhang
Summary: In this study, Love wave propagation in layered piezoelectric structures was analytically investigated, revealing significant effects of viscosity and conductivity on the phase velocity and attenuation of Love wave. The relationship between attenuation and frequency was found to be non-monotonic. The analytical solutions were in good agreement with finite element results, making the findings useful for acoustic wave device design.
Article
Mathematics, Applied
Zhenni Li, Yize Wang, Yuesheng Wang
Summary: This work investigates the three-dimensional propagation behaviors in the nonlinear phononic crystal and elastic wave metamaterial with initial stresses. Analytical solutions for the fundamental wave and second harmonic with the quasi-longitudinal and quasi-shear modes are derived. Band gaps with initial stresses are obtained based on the transfer and stiffness matrices using the Bloch theorem. The tunability of nonreciprocal transmission by initial stress is discussed.
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
(2022)
Article
Physics, Applied
Boris P. Sorokin, Nikita O. Asafiev, Gennady M. Kvashnin, Denis A. Scherbakov, Sergey A. Terentiev, Vladimir D. Blank
Summary: Researchers have successfully excited longitudinal bulk acoustic waves at frequencies up to 40GHz in a diamond-based High overtone Bulk Acoustic Resonator (HBAR) using an aluminum-scandium nitride film as an effective piezoelectric transducer. They also studied peculiarities of the HBAR's frequency response and acoustic attenuation in diamond.
APPLIED PHYSICS LETTERS
(2021)
Article
Acoustics
G. M. Kvashnin, B. P. Sorokin
Summary: The study focused on acoustic energy trapping and outflow in a High-overtone Bulk Acoustic Resonator (HBAR), using a specified resonator based on a piezoelectric layered structure as an example. The simulation results show that adjusting the design parameters of the HBAR can increase the range in which acoustic energy is retained. As the Thin Film Piezoelectric Transducer half-wave resonance frequency is approached, there is an increase in the lateral flow of energy from the HBAR's center to the periphery.
Article
Chemistry, Multidisciplinary
V. V. Zhukov, D. A. Shcherbakov, P. B. Sorokin, B. P. Sorokin
Summary: The physical properties of piezoelectric aluminum-scandium nitride solid solution were studied as a function of scandium concentration. The increase in piezoelectric constant with increasing scandium concentration was shown, along with softening of the lattice and decrease in elastic constants. Experimental and theoretical values showed good correspondence.
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA
(2021)
Article
Acoustics
G. M. Kvashnin, B. P. Sorokin, S. Burkov
Summary: The study implemented 1D and 2D simulation of excitation and propagation of Lamb waves in Al/AlN/(100)-diamond and Al-IDT/AlN/(100)-diamond piezoelectric layered structures, respectively. The calculated phase velocity values were in good agreement with experimental results, showing that resonances in these structures are determined by excitation of Lamb waves in the substrate above a synchronism frequency of an IDT. The quality factor of these resonances is significantly higher than that on surface acoustic waves, which was confirmed by experimental data. The amplitude-frequency responses and frequency dependences of the quality factor calculated using the 2D model also matched well with experimental results.
ACOUSTICAL PHYSICS
(2021)
Article
Acoustics
Andrei Sotnikov, Boris P. Sorokin, Nikita O. Asafiev, Denis A. Shcherbakov, Gennady M. Kvashnin, Yuriy Suhak, Holger Fritze, Manfred Weihnacht, Hagen Schmidt
Summary: This study explores the special material properties of the single crystalline material CTGS and its suitability for microacoustic applications under extreme conditions. The crystal structure's high degree of order and acceptable piezoelectric strength make it a potential candidate for use at high temperatures. Investigation into the crystal's behavior at gigahertz frequencies reveals low-loss dynamic behavior and the predominant Akhiezer loss mechanism.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2021)
Article
Acoustics
Sergey I. Burkov, Oleg N. Pletnev, Pavel P. Turchin, Olga P. Zolotova, Boris P. Sorokin
Summary: Theoretical study on the effect of uniaxial pressure on the propagation characteristics of Lamb and SH waves in a lithium niobate plate is conducted, deriving changes in effective crystalline symmetry and elastic constants. The controlling coefficients for the impact of pressure on plate modes' phase velocities are calculated for various applications of uniaxial pressure, while also discussing the influence of uniaxial pressure on the hybridization of elastic waves.
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
(2021)
Article
Computer Science, Information Systems
Gennady Kvashnin, Boris Sorokin, Nikita Asafiev, Viacheslav Prokhorov, Andrei Sotnikov
Summary: This study investigates the propagation of microwave acoustic waves in various diamond-based piezoelectric structures and observes the change in quality factor under metal film deposition. The experimental results are in accordance with the finite element method data. The study finds that the diamond-based high overtone bulk acoustic resonator shows a relatively small decrease in quality factor under the effect of metal layers in a wide microwave band, which is an important finding. Additionally, the operational resonant frequencies also vary with film thickness, which can be explained by the difference in acoustic impedances between diamond and metal films.
Article
Physics, Applied
Boris P. Sorokin, Nikita O. Asafiev, Danila A. Ovsyannikov, Gennady M. Kvashnin, Mikhail Yu. Popov, Nikolay V. Luparev, Anton V. Golovanov, Vladimir D. Blank
Summary: This paper presents an integrated measuring system using a diamond anvil cell and a high overtone bulk acoustic resonator for studying the behavior of materials under high pressure. The system offers advantages such as the application of microwave frequency, measurement of Q-factor changes under pressure, and a compact size.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
B. P. Sorokin, N. O. Asafiev, D. A. Ovsyannikov, G. M. Kvashnin, M. Yu. Popov, N. V. Luparev, A. V. Golovanov, V. V. Aksenenkov, V. D. Blank
Summary: The discussion focuses on the design of a new integrated measuring system and its application in studying the acoustic properties of paper and polycrystalline molybdenum samples under high pressure. The system demonstrates good operational characteristics for measuring acoustic properties under high pressure, as well as the ability to accurately measure resonant frequencies. Additionally, it can be utilized for researching the behavior of solids under pressure and plastic deformation in metals.
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA
(2022)
Article
Chemistry, Multidisciplinary
G. M. Kvashnin, D. A. Ovsyannikov, B. P. Sorokin, M. Yu. Popov
Summary: This study investigated the elastic properties and strength characteristics of carbon-based and boron carbide materials, with specific catalysts used to improve performance. Varying pressure, time, and temperature during synthesis showed that increasing operating pressure can enhance the elastic properties. Higher hardness values were observed to correlate well with an increase in elastic modulus.
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA
(2021)
Article
Acoustics
G. M. Kvashnin, B. P. Sorokin, S. I. Burkov
Summary: The authors conducted an experimental and theoretical study on the propagation of surface acoustic waves (SAW) and Lamb waves in Me-IDT/AlN/(100) diamond piezoelectric layered structures, finding that the quality factor of Lamb waves significantly increases with frequency.
ACOUSTICAL PHYSICS
(2021)
Article
Mathematics
Sergey Burkov, Oleg N. Pletnev, Pavel P. Turchin, Olga P. Zolotova, Boris P. Sorokin
Summary: Theoretical study on the influence of uniaxial pressure on the propagation characteristics of Lamb and SH-waves in lithium niobate plate includes calculations of electromechanical coupling coefficients and controlling coefficients of phase velocity in various directions, as well as detailed derivation of transformation and hybridization of acoustic modes under pressure influence.
JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-MATHEMATICS & PHYSICS
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Boris Sorokin, Gennady Kvashnin, Nikita Asafiev, Konstantin Kravchuk, Nikolay Luparev, Andrey Sotnikov
2020 JOINT CONFERENCE OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM AND INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS (IFCS-ISAF)
(2020)
Proceedings Paper
Engineering, Electrical & Electronic
Gennady Kvashnin, Boris Sorokin, Sergey Burkov
2020 JOINT CONFERENCE OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM AND INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS (IFCS-ISAF)
(2020)
Article
Chemistry, Multidisciplinary
B. P. Sorokin, G. M. Kvashnin, N. Luparev, N. O. Asafiev, D. A. Scherbakov
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA I KHIMICHESKAYA TEKHNOLOGIYA
(2020)
Article
Acoustics
Maxwell J. Kiernan, Rashid Al Mukaddim, Carol C. Mitchell, Jenna Maybock, Stephanie M. Wilbrand, Robert J. Dempsey, Tomy Varghese
Summary: In this study, a method for automatically determining bounding boxes and lumen segmentation using a Mask R-CNN network trained on sonographer assisted groundtruth carotid lumen segmentations is presented. This method is of great importance for analyzing ultrasound images that require time and labor, and it also lays the foundation for developing accurate plaque segmentation and wall thickness measurement methods.
Article
Acoustics
Junzhen Wang, Jianmin Qu
Summary: This article presents the solution to guided wave fields in a double-layer plate and proposes a nonlinear spring-interface model for the bonding between the two sublayers. The study finds that the nonlinearity of the spring-interface can generate resonant guided waves in the double-layer plate, providing a theoretical foundation for the development of nondestructive evaluation techniques using nonlinear guided waves.
Article
Acoustics
Shuyuan Ye, Tianyu Peng, Zhili Long, Zhiming Jiang, Xiangqing Li, Zhonghua Cao
Summary: In this study, a novel approach based on beating vibration model is proposed for frequency tracking, which accurately determines the resonant frequency of the transducer in a short time.
Article
Acoustics
Shuling Gao, Rui Zhang, Zheng Fan, Ning Li, Yanan Yue, Lili Xie
Summary: In this study, a novel method is proposed to monitor fatigue damage in welded joints by computing the energy density in the diffuse ultrasonic signal. The results indicate that the correlation coefficient of the energy density exhibits a significant decreasing trend when crack initiation occurs, providing a unique signal to indicate crack initiation in welded joints.
Article
Acoustics
Ata Jafarzadeh, Peter D. Folkow, Anders Bostrom
Summary: This study investigates the scattering of elastic waves by an anisotropic sphere with orthorhombic symmetry inside an isotropic medium, and applies it to the characterization of polycrystalline materials with anisotropic grains. The expansion coefficients of the wave and displacement field are determined inside the sphere using recursion relations and boundary conditions. The T matrix elements are then obtained and used to analyze the attenuation and phase velocity of polycrystalline materials, particularly at low frequencies. The proposed approach shows good agreement with previous results and finite element method for strongly anisotropic materials.
Article
Acoustics
F. R. Akhmedzhanov, M. I. Elboeva, S. Z. Mirzaev
Summary: The dependence of elastic and acousto-optic properties on the direction of wave vector and polarization of acoustic and optical waves in lead molybdate crystals has been investigated. Effective photoelastic constants were determined using the Dixon method for different geometries of Bragg light diffraction. The study of the acousto-optic quality factor dependence on the direction of the wave vector of longitudinal acoustic waves in the symmetry plane revealed that the maximum and minimum values are observed when light is diffracted by pure longitudinal waves in this plane. Additionally, it was found that the acousto-optic quality factor in lead molybdate crystals is practically the same as in paratellurite crystals.
Article
Acoustics
H. Franklin
Summary: This paper investigates the interaction between double porosity distributed cylindrical bodies and the surrounding fluid using a generalized self consistent method. The study reveals that there is a correlation between the propagating waves and the effective quantities at low frequencies, which is influenced by the volume fraction of scatterers and the porosity.
Article
Acoustics
Yuchen Liu, Mahshid Hafezi, Andrew Feeney
Summary: This study investigates the use of Nitinol, a shape memory alloy, in a Langevin power ultrasonic transducer to mitigate the influence of temperature on device performance. The results demonstrate that by controlling the microstructure of Nitinol, the nonlinear softening of the piezoelectric stack can be reduced, leading to higher and more stable vibration amplitudes. Furthermore, the use of Nitinol allows for stable resonance frequency and performance even with temperature changes and continuous operation.
Article
Acoustics
Shrutika Sharma, Vishal Gupta, Deepa Mudgal
Summary: Poly Lactic Acid (PLA) based bone plates fabricated using Fused Deposition Modeling can have improved mechanical strength by biocompatible polydopamine (PDM) coating. The effect of ultrasonic assisted coating parameters on tensile strength of coated bone plates was investigated and compared using Response Surface Methodology (RSM) and machine learning (ML) models. The gradient boosting regression (GBReg) model outperformed other models in terms of accuracy and prediction performance for predicting the tensile strength of PDM coated bone plates.
Article
Acoustics
Kirill Kolesnik, Vijay Rajagopal, David J. Collins
Summary: Superstrate-based acoustofluidic devices offer advantages of cost, interchangeability and prevention of contamination between samples. This study analyzes the coupling layers and superstrate dimensions for efficient sound transmission, finding that a superstrate thickness of 0.55 times the acoustic wavelength maximizes acoustic coupling.
Article
Acoustics
Dingpeng Wang, Xiaocen Wang, Shili Chen, Jian Li, Lin Liang, Yang Liu
Summary: This paper proposes an end-to-end ultrasonic guided wave joint learning imaging method for sparse and limited-view transducer arrays, which significantly improves the quality of imaging results by integrating sparse feature reconstruction and deep learning imaging methods.
Article
Acoustics
Zubeir M. Ebrahim Saib, Anthony J. Croxford, Bruce W. Drinkwater
Summary: This paper proposes a numerical model using FDTD scheme to solve the nonlinear elastic bulk wave equations, aiming to better understand nonlinear ultrasonic techniques. The model considers material and geometrical nonlinearities and uses a stress-type boundary condition for excitation. Simulation and experimental results validate the effectiveness of the model.
Article
Acoustics
Sol R. Martinez, Emmanuel Odella, Luis E. Ibarra, Arianna Sosa Lochedino, Ana B. Wendel, Andres M. Durantini, Carlos A. Chesta, Rodrigo E. Palacios
Summary: Sonodynamic inactivation (SDI) has an advantage over optical excitation-based protocols due to the deeper penetration of ultrasound (US) excitation. In this study, we applied conjugated polymer nanoparticles (CPNs) as an efficient sonosensitizer (SS) in SDI of pathogens and characterized the sonoreactor. We found that CPNs have a germicidal effect on planktonic cultures and mature biofilms, highlighting their potential for novel inactivation protocols.
Article
Acoustics
Quentin Baudis, Tony Valier-Brasier, Regis Wunenburger
Summary: In this study, we present a detailed procedure for measuring the rheological properties of soft, highly attenuating, visco-elastic materials at ultrasonic frequencies. We use a crosslinked Polyurethane (PU) elastomer as an example and determine its complex longitudinal modulus M and shear modulus G as a function of frequency and temperature. The results show that M, G, and bulk modulus K obey the time-temperature superposition principle and can be accurately described using a fractional derivative rheological model.
Article
Acoustics
Richard E. Jacob, Matthew S. Prowant, Chris A. Hutchinson
Summary: Ultrasonic inspection of cast austenitic stainless steel (CASS) in the nuclear industry is challenging due to sound field scatter and attenuation caused by the coarse-grained microstructure. Modeling and simulation are important tools for addressing key aspects of inspections, but developing a useful and reliable CASS model is challenging. This study demonstrates a method of creating a realistic CASS model and compares it with laboratory-measured sound fields, showing promising results.
