Article
Engineering, Electrical & Electronic
Y. K. Fetisov, D. Chashin
Summary: This paper discusses the design and manufacturing technology of monolithic magnetoelectric (ME) transformers based on the nickel-zinc ferrite lead zirconate-titanate structure. A prototype of the transformer is fabricated, which simplifies the design and reduces the size. The transformer has low input and high output impedance, and the transformation ratio is controlled by a magnetic field.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Engineering, Electrical & Electronic
D. Chashin, L. Y. Fetisov, D. Saveliev, Y. K. Fetisov
Summary: The planar magnetoelectric voltage transformer utilizes a layered composite structure and a coilless system to simplify the design and allow for tuning of the voltage transformation ratio with an external magnetic field. It has an output voltage range of 0-400 mV and can achieve an output power of 9 μW at optimal load resistance.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Mathematics, Applied
Peng Zhou
Summary: The paper discusses coupling effects among different physical fields and their energy conversion processes in detail, including the analysis of energy conversion mechanisms induced by piezoelectric, piezomagnetic, and generalized Villari effects.
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION
(2021)
Article
Multidisciplinary Sciences
Yong Hu, Scott Broderick, Zipeng Guo, Alpha T. N'Diaye, Jaspal S. Bola, Hans Malissa, Cheng Li, Qiang Zhang, Yulong Huang, Quanxi Jia, Christoph Boehme, Z. Valy Vardeny, Chi Zhou, Shenqiang Ren
Summary: The combination of proton conduction and multiferroics offers a versatile platform to achieve molecular magnetoelectrics. Machine learning coupled with additive manufacturing accelerates the design of hydrogen-bonded multiferroic macromolecules with strong proton dependence of magnetic properties. The findings indicate a reversible magnetization control and magnetic modulation at room temperature, highlighting the potential for proton-mediated magnetoelectric coupling in hierarchical molecular multiferroics.
NATURE COMMUNICATIONS
(2021)
Article
Engineering, Mechanical
David Gibus, Pierre Gasnier, Adrien Morel, Nicolas Garraud, Adrien Badel
Summary: This paper investigates the use of piezoelectric vibration harvesters with strong electromechanical coupling coefficients, and presents a nonlinear model to consider losses, demonstrating that neglecting nonlinear losses can lead to an overestimation of harvested power.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
F. A. Fedulov, L. Y. Fetisov, D. V. Chashin, D. V. Saveliev, D. A. Burdin, Y. K. Fetisov
Summary: This paper introduces a new type of spectrum analyzer that utilizes the nonlinear effect of magnetic field mixing. It allows for the analysis of magnetic field characteristics to obtain information about internal processes and performance of different sources. The analyzer has a wide frequency range and high resolution, making it suitable for medical diagnostics. The possibilities for improving the performance of magnetic field spectrum analyzers are also discussed.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Instruments & Instrumentation
Obaidullah Alfahmi, Christopher Sugino, Alper Erturk
Summary: Piezoelectric shunt damping techniques using linear and switching circuits have been well studied for suppressing resonant vibrations. This work introduces cubic inductance to emulate nonlinearity and demonstrates precise digital programming and tuning capability. Experimental and simulation results validate the effectiveness of this approach.
SMART MATERIALS AND STRUCTURES
(2022)
Article
Materials Science, Multidisciplinary
Xudong Zhao, Ruirui Cui, Chaoyong Deng
Summary: A sandwich structure magnetostriction-piezoelectric composite film was prepared and investigated for its morphology, chemical composition, and properties. The composite film exhibited excellent ferroelectric, ferromagnetic, and piezoelectric properties, and achieved a large magnetoelectric coupling effect through mechanical strain transfer and interface coupling.
Article
Materials Science, Multidisciplinary
F. A. Fedulov, D. Saveliev, D. Chashin, S. B. Odinokov, A. S. Kuznetsov, Y. K. Fetisov
Summary: Anisotropic magnetoelectric (ME) effects are investigated in a planar multiferroic heterostructure consisting of a piezoelectric lead zirconate-titanate substrate and a grating of ferromagnetic Ni-strips electrodeposited on its surface. The magnitudes of both the linear and nonlinear ME effects depend on the orientation of the magnetic fields and the distance between the strips. The strong anisotropy of ME effects arises due to demagnetization in a single Ni-strip and dipole-dipole interaction between the adjacent strips. A calculation technique is proposed to describe the anisotropy of ME effects in the heterostructure.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Multidisciplinary Sciences
Ellen Fogh, Bastian Klemke, Manfred Reehuis, Philippe Bourges, Christof Niedermayer, Sonja Holm-Dahlin, Oksana Zaharko, Jurg Schefer, Andreas B. Kristensen, Michael K. Sorensen, Sebastian Paeckel, Kasper S. Pedersen, Rasmus E. Hansen, Alexandre Pages, Kimmie K. Moerner, Giulia Meucci, Jian-Rui Soh, Alessandro Bombardi, David Vaknin, Henrik. M. Ronnow, Olav F. Syljuasen, Niels B. Christensen, Rasmus Toft-Petersen
Summary: Mixed-anisotropy magnet LiNi1-xFexPO4 demonstrates a two orders of magnitude enhancement of magnetoelectric coupling, unlocking symmetry-forbidden couplings and showing potential for tuning magnetoelectric properties.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Applied
Dmitrii Savelev, Leonid Y. Fetisov, Dmitri Chashin, Victoria O. Belan, Yuri K. Fetisov
Summary: This study experimentally investigated the direct and converse magnetoelectric effects in ferromagnet-piezoelectric composite heterostructures under magnetic and electric field pulses, and estimated the ME conversion coefficients for both effects.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Engineering, Mechanical
Dmitri Burdin, Dmitri Chashin, Leonid Fetisov, Dmitri Saveliev, Nikolai Ekonomov, Melvin Vopson, Yuri Fetisov
Summary: The magnetoelectric effect enables the mutual transformation of magnetic and electric fields, and by utilizing a coil-free excitation system, the operating frequency of ME devices can be increased and their size reduced. This advancement opens up the possibility of creating planar ME devices and accelerates their integration into modern electronics and microsystem technology.
Article
Chemistry, Physical
Xiang Li, Yu Wang, Meifeng Liu, Yunlong Xie, Jiahua Min, Xiyu Chen, Jingwen Gong, Leiyu Li, Min Zeng, Yiming Xu, Yiru Wang, Biwen Li, Xiuzhang Wang, Jun-Ming Liu
Summary: Co3NiNb2O9 demonstrates a significant magnetoelectric response below 32K, with a large ME coefficient, and can achieve stable mutual control by magnetic or electric fields.
JOURNAL OF MATERIOMICS
(2021)
Article
Materials Science, Multidisciplinary
D. A. Burdin, N. A. Ekonomov, S. N. Gordeev, Y. K. Fetisov
Summary: This study investigates the in-plane anisotropy of linear and nonlinear magnetoelectric effects in a heterostructure composed of amorphous iron-based ferromagnet and piezoelectric lead zirconate-titanate ceramics. The results show strong uniaxial or biaxial anisotropy for different directions of the bias field within the sample plane. Anisotropy of ME effects should be considered in the development of magnetoelectric devices based on composite heterostructures.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Physics, Applied
Dmitry Saveliev, Dmitry Chashin, L. Y. Fetisov, Y. K. Fetisov
Summary: The direct and converse magnetoelectric effects in a Langevin-type resonator were observed and investigated for the first time. Nonlinear ME effects such as frequency doubling, frequency mixing, and resonance frequency shift were observed at high field amplitudes, and both direct and converse ME effects in the resonator were controlled by an external dc magnetic field.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Mechanics
Rawan Aqel, Patrick Severson, Rani Elhajjar
Summary: A novel core splice joint configuration for composite sandwich structures is studied and proposed to improve the strength and toughness. Experimental and numerical efforts show that this configuration can significantly increase the ultimate strength by 13% to 51% and the toughness by 2% to 35%.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xianheng Wang, Cong Chen, Jinsong Zhang, Xinming Qiu
Summary: In this paper, a new form-finding method based on spatial elastica model (FMSE) is proposed for elastic gridshells. The method integrates the deformations of elastic rods into the overall deformation of the gridshell, and solves a set of transcendental equations using the quasi-Newton method to ensure the deformation satisfies the given boundary conditions. The method is validated through experiments and expected to have potential applications in the investigations of elastic gridshells.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Hao Huang, Zitong Guo, Zhongde Shan, Zheng Sun, Jianhua Liu, Dong Wang, Wang Wang, Jiale Liu, Chenchen Tan
Summary: The conventional evaluation of 3D braided composites' mechanical properties through numerical and experimental methodologies hinders material application due to the expenses, time constraints, and laborious efforts involved. This study establishes a multi-scale finite element model and a surrogate model for predicting the elastic properties of 3D4D rotary braided composites with voids. By optimizing a neural network model, the results are validated and provide valuable insights into the microstructure and properties of these composites.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Xinyu Li, Hao Zhang, Haiyang Yang, Junrong Luo, Zhongmin Xiao, Hongshuai Lei
Summary: Due to their excellent mechanical properties and design flexibility, fluted-core composite sandwich structures have gained significant attention in aerospace and rail transit applications. This study investigated the free-vibration characteristics and optimized design of composite fluted-core sandwich cylinders through theoretical models and experimental tests.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Chao Li, Chunzheng Duan, Xiaodong Tian, Chao Wang
Summary: A mechanistic model considering the bottom edge cutting effect and the anisotropic characteristics of the material is proposed in this paper to accurately predict cutting forces. The model was validated through a series of milling experiments and can be used to predict the cutting force of various parts of the cutter and any feed direction.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Camila Sanches Schimidt, Leopoldo Pisanelli Rodrigues de Oliveira, Carlos De Marqui Jr
Summary: This work investigates the vibro-acoustic performance of graded piezoelectric metamaterial plates. The study shows that piezoelectric metamaterial plates with reconfigurable properties can provide enhanced vibration and sound power attenuation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jun Ke, Li-jie Liu, Zhen-yu Wu, Zhong-ping Le, Luo Bao, Dong-wei Luo
Summary: Compared with other green natural fibers, ramie has higher mechanical properties and lower cost. In this study, ramie and glass fiber are made into composite circular tubes. The results show that the hybrid circular tube with ramie and glass fiber has improved torsional mechanical properties and reduced weight and cost. The failure mechanisms are affected by the loading direction and the content of each fiber.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Natalia Pingaro, Gabriele Milani
Summary: This paper proposes an enhanced analytical model for predicting the behavior of FRCM samples tested under standard tensile tests. The model takes into account the interaction between fibers and matrix through the interface, and assumes different material properties at different phases. By solving a second order linear differential equation, an analytical solution can be obtained. The model is validated with experimental data and shows good predictability.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Jialiang Fan, Anastasios P. Vassilopoulos, Veronique Michaud
Summary: This article investigates the effects of voids, joint geometry, and test conditions on the fracture performance of thick adhesive Double Cantilever Beam (DCB) joints. It concludes that grooved DCB joints with low void content tested at low displacement rates showed stable crack propagation without significant crack path deviation.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Auwalu I. Mohammed, Kaarthikeyan Raghupathy, Osvaldo De Victoria Garcia Baltazar, Lawson Onokpasah, Roger Carvalho, Anders Mogensen, Farzaneh Hassani, James Njuguna
Summary: This study investigates the performance of composite pressure vessels under damaged and undamaged conditions, providing insights into their reliability and residual strength capabilities. The results demonstrate that the damage profile and its effect on compressive strength are similar between damaged and non-damaged cylinders. When subjected to quasi-static compression, the polyethylene liner absorbs enough elastic strain energy to recover without plastic deformation. Additionally, quasi-static compression has little to no influence on the axial strength of the cylinders. The damage characterization reveals fiber breakage, delamination, local buckling, and brooming failure. This study has direct implications for the safety design tolerances, manufacturing strategies, and operational failure conditions of composite overwrapped pressure vessels (COPVs).
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Muhammad Irfan Shirazi, Samir Khatir, Djilali Boutchicha, Magd Abdel Wahab
Summary: Structural health monitoring is important to ensure the safety of components and structures. This study proposes a method using finite element models and 1D-CNN network to extract and classify vibration responses for crack detection. The results show that the proposed approach is effective in real-time damage detection.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Maryam Mirsalehi, Kiarash Kianpour, Sharif Shahbeyk, Mohammad Bakhshi
Summary: This study comprehensively investigates the one-way response of 3D-woven sandwich panels (3DWSPs) and their interfering parameters, providing interpretation of elastic and failure results, failure maps, and reliable theoretical models for linear elastic response and observed failure mechanisms.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Yiming Zhao, Zhonggang Wang, Zhigang Yang, Bin Qin
Summary: The paper proposes a Ritz and statistical energy analysis (Ritz SEA) hybrid method for calculating rectangular plate acoustic vibration coupling in the mid-frequency range. This method combines the fast convergence and ability to handle arbitrary boundary conditions of the Ritz method with the power flow equation of the statistical energy analysis method. The results show that this approach effectively filters out random fluctuations in mid-frequency domains while demonstrating exceptional stability and precision.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Joao Henrique Fonseca, Woojung Jang, Dosuck Han, Naksoo Kim, Hyungyil Lee
Summary: This study addresses the enhancement of an injection-molded fiber-reinforced plastic / metal hybrid automotive structure and its plastic injection molding process through the integration of the finite element method, artificial intelligence, and evolutionary search methods. Experimental validation of finite element models, the generation of a database through orthogonal array and Latin hypercube methods, and the training of artificial neural networks are conducted. The genetic optimization algorithm is then applied to identify optimal process parameters. The results show significant reduction in product warpage and manufacturing time while maintaining structural strength, contributing to the advancement of composite automotive structures with superior quality.
COMPOSITE STRUCTURES
(2024)
Article
Mechanics
Alessandro Vescovini, Carina Xiaochen Li, Javier Paz Mendez, Bo Cheng Jin, Andrea Manes, Chiara Bisagni
Summary: This paper presents a study on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. The specimens were tested under compression loading conditions to investigate post-buckling and failure in aerospace structures. Experimental results and numerical simulations were compared to analyze the behavior and failure modes of the specimens. The study found promising evidence of a viable solution to optimize aeronautical structures and enhance resistance to skin-stringer separation, particularly with the use of tapered flanges.
COMPOSITE STRUCTURES
(2024)