Article
Mechanics
Xiao-Jian Xu, Jun-Miao Meng
Summary: A size-dependent elastic theory for magneto-electro-elastic (MEE) nano-materials is proposed, which includes classical and nonlocal parameters. Governing equations and boundary conditions are derived with the aid of the variational principle. General solutions for a one-dimensional beam problem are formulated, with the motion equation two orders higher than the classical model.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2021)
Article
Mechanics
Hsin-Yi Kuo, Yun-Hsuan Wang
Summary: This theoretical analysis investigates the free vibration of magneto-electro-elastic (MEE) laminated plates with generalized membrane-type interfacial imperfections. The wave motion characteristics, such as dispersion curves and mode shapes, are studied. The analytical solutions for an orthotropic and multilayered MEE plate with imperfect interfaces are derived using the pseudo-Stroh formalism and propagator matrix method. The effect of generalized membrane-type interfacial imperfections on the dispersion curve, mode shape, and magnetoelectric coupling factor is examined in detail for piezoelectric and piezomagnetic sandwich plates.
COMPOSITE STRUCTURES
(2022)
Article
Mechanics
Liming Zhou, Fangting Qu
Summary: Many engineering problems involve the coupling or interaction between different physics fields. In order to improve the efficiency and accuracy of calculations for magneto-electro-elastic materials in multiphysics fields, the MEE coupling isogeometric analysis method (MIGAM) is proposed. This method uses non-uniform rational B-spine (NURBS) functions for both geometric and analytical models, achieving seamless integration and ignoring mesh density effects. The MEE models, constructed using NURBS functions, are used to investigate the multiphysics coupling effects and static/dynamic responses under thermal and mechanical loading. Compared to the finite element method, MIGAM achieves higher efficiency by using fewer control points while maintaining sufficient accuracy for coupling multiphysics problems.
COMPOSITE STRUCTURES
(2023)
Article
Engineering, Mechanical
Yijin Sui, Wenzhong Wang, Haibo Zhang
Summary: This study investigates the three-dimensional frictional contact between a magneto-electro-elastic material and a perfectly conducting rigid spherical punch under electromagnetic fields. The problem is solved using the semi-analytical method and the proposed model is validated with analytical solutions and finite element method. The effects of electromagnetic fields on contact performance and electromagnetic output are studied, and curve fitting equations are proposed to predict the average electric and magnetic potentials as functions of electric and magnetic loads.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Engineering, Multidisciplinary
Liming Zhou, Hao Yang, Long Ma, Shizhong Zhang, Xiaoying Li, Shuhui Ren, Ming Li
Summary: The inhomogeneous magneto-electro-elastic (MEE) coupling element-free Galerkin method (IMC-EFGM) is proposed for solving static behaviors of MEE structures, analyzing plates made of homogeneous or inhomogeneous MEE materials and simulating mechanical behaviors in different temperature fields. The MLS approximation method is used to study displacement, magnetic potential, and electric potential. The method also involves using the penalty function method to impose natural boundaries for inhomogeneous MEE materials.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2022)
Article
Mechanics
Mriganka Shekhar Chaki, Julian Bravo-Castillero
Summary: This study focuses on the propagation of anti-plane waves with oblique incidence in a magneto-electro-elastic multi laminated composite periodic structure with perfect contact. The dispersion phenomena and dynamic process are analyzed using a general asymptotic homogenization method. Higher-order terms for displacement, electric potential, and magnetic potential in asymptotic expansions are studied assuming a single-frequency dependency. The obtained results include the effective equation of motion, closed-form expressions of the dispersion equation, and solutions of first and second local problems.
COMPOSITE STRUCTURES
(2023)
Article
Mechanics
Zheng Gong, Yinxiao Zhang, Ernian Pan, Chao Zhang
Summary: In this work, the concentration and distribution of field along the wall of elliptic holes in anisotropic magneto-electro-elastic (MEE) materials were systematically analyzed using a three-dimensional finite-element formulation implemented in COMSOL software. The proposed model was validated and applied to the design of multiferroic composites with an open hole. The distribution of stress and influence of hole shape, plate thickness, and stacking sequence were investigated.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2023)
Article
Mechanics
Awantika Mishra, Yadwinder Singh Joshan, Sajan Kumar Wahi, Sushma Santapuri
Summary: In this work, a nonlinear coupled electro-magneto-elastic membrane model is developed for soft functional materials. The model is validated by analyzing an internally pressurized cylindrical membrane in an azimuthal magnetic field and radial electric field. Mechanical and electrical limit-point instabilities and their dependency on external fields are investigated using this model.
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
(2023)
Article
Mechanics
Shuai Zhu, Hongjun Yu, Liulei Hao, Zhen Shen, Jianshan Wang, Licheng Guo
Summary: This paper focuses on the thermal fracture performance of magneto-electro-elastic (MEE) materials and proposes a new method for extracting the key fracture parameters. The developed method is validated and applied to study thermal crack problems of MEE materials, as well as thermal fracture of laminated and fiber reinforced MEE composites.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2023)
Article
Multidisciplinary Sciences
Wen-Chao Bai, Hui Hu, Ben-Hu Zhou, Gui-Xiang Liu, Ge Tang, Yang-Yu Huang, Yan Cao, Han Zhang, Han-Zhuang Zhang
Summary: In this study, we designed a magneto-electro-elastic piezoelectric, electromagnetic metamaterial that exhibits multi-field coupling and creates a photonic band gap. It has the potential to be used as a left-handed material and a zero refractive index material.
Article
Engineering, Mechanical
Ye Tang, Tao Wang, Zhi-Sai Ma, Tianzhi Yang
Summary: A novel magneto-electro-elastic model of bi-directional functionally graded materials beams is developed to investigate nonlinear dynamics, showing that asymmetric modes induced by 2D FGMs significantly impact nonlinear responses. The influences of material distributions, length-thickness ratio, electric voltage, magnetic potential, and boundary conditions on nonlinear resonant frequency and response amplitude are discussed, highlighting the potential for accurate design of multi-ferroic composite structures through adjustments in material properties.
NONLINEAR DYNAMICS
(2021)
Article
Engineering, Mechanical
Rosaria Del Toro, Andrea Bacigalupo, Marco Lepidi, Andrea Mazzino
Summary: This paper investigates the influence of heterogeneous multi-phase cells on the propagation of multifield Bloch waves in magneto-electro-elastic (MEE) materials. The dispersion properties are analyzed through analytical determination and perturbation methods. It is found that slow-propagating quasi-shear-elastic waves dominate the low-frequency range, while fast-propagating quasi-magneto-electric waves dominate the high-frequency range. The propagation and attenuation behaviors of these waves can be controlled by varying the physical parameters.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Mechanics
B. Wu, D. Peng, R. Jones
Summary: This paper discusses the fracture analysis of two collinear cracks under a thermo-magnetic-electric-elastic field, and provides analytical solutions using permeable crack models and singular integral equation. An example is used to demonstrate the effectiveness of the method, and the factors affecting the parameters around the crack surfaces are analyzed.
ARCHIVE OF APPLIED MECHANICS
(2023)
Article
Engineering, Aerospace
X. L. Zhang, X. C. Chen, M. Li, Y. H. Li, J. Xu
Summary: This paper investigates the thermal post-buckling behaviors of magneto-electro-elastic laminated beams, modeling the beams using Timoshenko beam theory with von Karman geometric nonlinearity. The study focuses on thermal post-buckling paths, post-buckling vibration characteristics, and magneto-electric potential responses, discussing the effects of lay-up modes, thermal load types, and magneto-electric fields.
AEROSPACE SCIENCE AND TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Liming Zhou, Yan Gao
Summary: Magneto-electro-elastic (MEE) composites have promising application prospects due to their rapid response to external electric or magnetic fields. The enriched finite element method (EFEM) is an improved version of the standard finite element method (FEM) that can effectively solve the multi-physics coupling issues in MEE-based structures. The mechanical-electro-magnetic coupling enriched finite element method (MEM-EFEM) was proposed specifically for the complex coupling mechanism in MEE-based structures, and it outperforms the regular FEM in terms of convergence, accuracy, and element usage.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Green & Sustainable Science & Technology
Qinjie Lin, Kun Lin Tay, Wenbin Yu, Yichen Zong, Wenming Yang, Laura-Helena Rivellini, Mutian Ma, Alex King Yin Lee
Summary: Polyoxymethylene dimethyl ether 3 (PODE3) is a highly promising renewable fuel that shows potential for reducing soot pollution in diesel engines. Adding 20% PODE3 to diesel can reduce particulate matter at all engine loads, but may lead to an increase in particle number concentration.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Wenbin Yu, Feiyang Zhao, Wenming Yang, Qiren Zhu
Summary: This study focuses on parameter uncertainties in engineering analysis, particularly in interpreting model predictions using LII diagnosis and DMS500 measurements for f(v) calibration. Various methodologies such as Bayesian regression and principal component analysis are utilized to infer uncertainties associated with calibration parameters and provide better guidance for LII diagnosis on soot characteristics.
Article
Mechanics
Su Tian, Wenbin Yu
Summary: In this work, the Gaussian process is proposed to approximate the overall shape of the initial failure envelope in the space of sectional forces and moments of composite beam cross-sections, using Tsai-Wu failure criterion for strength analysis at the material level. The adaptive sampling technique is used to select training data and the predicted variance scaled by predicted mean is used as a measure of the score to select the most promising point as the new sample for the next training iteration.
COMPOSITE STRUCTURES
(2021)
Article
Mechanics
Fei Tao, Xin Liu, Haodong Du, Wenbin Yu
Summary: The Abaqus-DNN mechanics system combines the commercial FE code Abaqus with the DNN model to learn the constitutive law of fiber-reinforced composite materials, providing a generalized approach for learning unknown physics inside a mechanics system. This system accurately learns constitutive laws based on structural level data and has broad application prospects.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Aerospace
Wenbin Yu, Wanchun Chen
Summary: A new flight dynamics model is proposed to predict the 3-D atmospheric gliding trajectory of a hypersonic glide vehicle under high-maneuver flight conditions, and closed-form solutions are obtained through decomposition and perturbation techniques, offering higher accuracy than existing solutions in high-maneuver flight scenarios.
IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
(2021)
Article
Engineering, Aerospace
Wenbin Yu, Jin Yang, Wanchun Chen, Bo Liao, Hengwei Zhu
Summary: This paper investigates a special atmospheric glide problem and develops corresponding analytical solutions that are also applicable to conventional glide problems and found to be more accurate.
Article
Mechanics
Yufei Long, Orzuri Rique, Juan M. Fernandez, Andrew C. Bergan, Joshua E. Salazar, Wenbin Yu
Summary: In this study, finite element simulation of the column bending test (CBT) was conducted using shell elements with anisotropic viscoelastic section properties. The results showed that the model was capable of predicting most of the measured trends, but viscoplasticity should also be considered.
COMPOSITE STRUCTURES
(2022)
Article
Engineering, Manufacturing
Yufei Long, Wenbin Yu, R. Byron Pipes, Alireza Forghani, Anoush Poursartip, Kamyar Gordnian
Summary: An efficient shell model based on mechanics of structure genome (MSG) is introduced to predict the manufacturing induced residual stress and deformation for composite laminates. This model utilizes shell elements in commercial finite element software to represent the composite laminate, and is able to predict spring-in and residual stress caused by non-mechanical loading. However, limitations of existing shell elements in Abaqus result in disagreement when considering deformation caused by the change of transverse shear stiffness.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Engineering, Multidisciplinary
Fei Tao, Xin Liu, Haodong Du, Wenbin Yu
Summary: This paper presents a finite element coupled positive definite deep neural networks mechanics system (FE-PDNN) that enables learning of the constitutive law based on structural level response and solves the convergence robustness issue in severely damaged materials.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Energy & Fuels
Qiren Zhu, Yichen Zong, Wenbin Yu, Wenming Yang, Markus Kraft
Summary: This study investigates the particulate formation process in diesel/Jet A-1 blends and highlights the potential of Jet A-1 as an alternative fuel for reducing emissions without sacrificing engine power output. The findings suggest that the pilot-injection strategy may weaken the oxidation process during combustion. Additionally, the research quantifies the impact of Jet A-1 on combustion and gas emission characteristics.
Article
Materials Science, Multidisciplinary
Ankit Deo, Wenbin Yu
Summary: This study presents a method to obtain equivalent 3D properties for composite thin-walled 3D structures using the concept of mechanics of structure genome. The approach involves discretizing the structure into frame elements and minimizing the remaining energy with respect to unknown fluctuating functions. It offers advantages over existing models in terms of handling structures with different complexities and internal geometries.
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
(2023)
Article
Mechanics
Rong Chiu, Wenbin Yu
Summary: Heterogeneous Solid Element (HSE) models a heterogeneous body as an equivalent solid element based on Mechanics of Structure Genome (MSG), providing higher accuracy compared to traditional multiscale modeling techniques for composite materials. HSE homogenizes heterogeneous microstructures into equivalent solid elements, introducing a novel concept for multiscale modeling.
COMPOSITE STRUCTURES
(2022)
Article
Environmental Sciences
Guixin Wang, Wenbin Yu, Zining Yu, Xiaobo Li
Summary: With the increasingly strict emission requirements for diesel engines, reducing emissions has become a key technology. This study investigates the influence of fuel injection on combustion and emission characteristics of marine diesel engines through numerical simulations and experimental validations. By optimizing the structural parameters of the fuel injection system, the performance, economy, and emission characteristics of diesel engines can be improved simultaneously.
Article
Engineering, Mechanical
Liang Zhang, Haodong Du, Wenbin Yu
Summary: The paper applies the mechanics of structure genome (MSG) to chiral metastructures and introduces various models to identify the smart properties of these structures. It is found that 3D metastructures consisting of missing rib UCs exhibit a shear coupling instead of being auxetic, while different beam- and plate-like metastructures show smart properties such as extension-twist, shear, and bend-twist couplings.
ACTA MECHANICA SINICA
(2023)
Article
Energy & Fuels
Qiren Zhu, Yichen Zong, Yong Ren Tan, Jieyao Lyu, Wenbin Yu, Wenming Yang, Markus Kraft
Summary: This study investigates the effects of diesel/n-butanol blends on particulate matter (PM) emissions in a common-rail diesel engine. The results show that the addition of n-butanol can improve fuel and oxidizer mixing, resulting in lower chamber temperature and reduced emissions of HC, NOx, and PM. The study also finds that n-butanol increases the oxidative reactivity of soot particles and shorter combustion duration leads to higher disorder level of particles.
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)
