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Biaxially stretchable metamaterial absorber with a four-dimensional printed shape-memory actuator Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-11 Sumin Bark, Heijun Jeong, Eiyong Park, Sungjoon Lim
Among the various methods for strain sensing, the metamaterial absorbers (MMAs) stand out due to their dual capabilities. Specifically, MMAs facilitate the wireless detection of deformations in the target and operate independently of any external power source. However, conventional research has a limitation in that stretchable strain sensors are unable to deform themselves autonomously, which puts
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Rigid-foldable spiral origami with compression-torsion coupled motion mode Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-11 Tie Mei, Fei Wang, C.Q. Chen
Rigid foldable origami enables smooth and precise folding without stretching or bending its constituent panels and is promising for applications such as reprogrammable matter, self-folding machines, reconfigurable antennas, and deployable spacecraft. The diverse range of potential applications necessitates the need for the design and detailed analysis of different rigid-foldable origami structures
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Mesoscopic simulation of concrete drying shrinkage with hydration kinetics Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-11 Mengxi Zhang, Wenwei Li, Mingchao Li, Qiaoling Min, Yang Shen, Chensen Ding
Shrinkage-induced cracking significantly impacts the durability of mass concrete structures. Quantitatively evaluating drying shrinkage of concrete proves challenging due to the time-consuming experiments and overlooked microstructure changes during the hydration process. To address this concern, this study initially characterized the long-term hydration products and microstructure of low-heat Portland
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Group-random algorithm to generate representative volume element models for composites Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-08 Guo-dong Xu, Yang-peng Zheng, Feng-rui Liu, Xiao-tian Yi, Liying Jiang
One of the most commonly used methods for characterizing the mechanical properties of discontinuous fiber reinforced composites (DFRC) is to establish a Representative Volume Element (RVE) model and perform finite element (FE) analysis. However, FE analysis on RVE models established by traditional sampling algorithms is often computationally expensive due to the large size of RVE that is required to
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Finishing mechanism of stably rotary ring workpiece by friction driven Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-06 Xuenan Li, Huiting Shi, Shengqiang Yang, Wenhui Li, Xiuhong Li
High-Performance Ring Parts (HPRPs) are widely used in various critical industrial fields, which require good surface quality and dimensional accuracy. The fine finishing of HPRPs is crucial in modern manufacturing. For traditional finishing methods, it is necessary to process the inner and outer surfaces separately due to the clamping. This paper reports on the floating clamp used in barrel finishing
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Deep learning identifies transversely isotropic material properties using kinematics fields Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-04 Nikzad Motamedi, Hazem Wannous, Vincent Magnier
Determining the stress-strain relationship in materials that exhibit complex behaviors, such as anisotropy, is pivotal for applications in structural engineering and materials science, as the behavior of materials under stress directly impacts safety and performance. This study introduces an innovative approach that leverages Artificial Intelligence (AI) through deep learning (DL) techniques to accurately
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Optimal design of cavity-free mechanical metamaterials exhibiting negative thermal expansion Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-04 Daichi Akamatsu, Kei Matsushima, Takayuki Yamada
In this study, we present a novel topology-optimized design of a two-dimensional cavity-free mechanical metamaterial with a negative coefficient of thermal expansion. We challenge the prevailing hypothesis that cavities are necessary for achieving negative coefficients of thermal expansion. The proposed metamaterial is a periodic lattice of a topology-optimized unit cell comprising three distinct solid
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A coupled phase-field model for sulfate-induced concrete cracking Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-01 Jie Luo, Qiao Wang, Wei Zhou, Xiaoying Zhuang, Zhangzheng Peng, Xiaolin Chang, Timon Rabczuk
The performance of concrete will decrease when subjected to external sulfate corrosion, and numerical models are effective means to analyze the mechanism. Most models cannot efficiently consider the effect between cracks and ionic transport because crack initiation and propagation are ignored. In this paper, a coupled chemical-transport-mechanical phase-field model is developed, in which the phase-field
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Bridging micro nature with macro behaviors for granular thermal mechanics Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-09-01 Cheng-Chuan Lin, Ling-Xuan Meng, Chih-Ang Chung, Yun-Chi Chung
The connection between micro-level characteristics and macroscopic properties in granular heat transfer and mechanics is fundamental and crucial. This study proposes a novel discrete element approach incorporating granular heat transfer, contact bonding, and granular stress tensor models to investigate the mechanical and thermal responses of continuum media composed of constituent spheres. Eight benchmark
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Brittle-ductile transition mechanism during grinding 4H-SiC wafer considering laminated structure Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-30 Meina Qu, Chuanzhen Huang, Shuiquan Huang, Xiaobo Peng, Zhen Wang, Longhua Xu, Zhengkai Xu, Dijia Zhang, Baosu Guo
4H-SiC wafer with alloy backside layer is gradually applied in power devices. However, the laminated structure presents various challenges in manufacturing. In this study, a model for brittle-ductile transition in grinding of laminated materials is established and verified by grinding experiment to ensure the complete removal of the alloy backside layer while achieving ductile removal of the 4H-SiC
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Meta-arch structure: Designed reinforcement cage to enhance vibration isolation performance Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-30 Guoqing Sun, Xiyue An, Ruiyi Jiang, Xinfeng Yuan, Xuanxuan Hou, Hualin Fan
In this study, inspired by the mechanical metamaterials with bandgap properties, a new type of meta-arch structure (MAS) for the attenuation of elastic waves is proposed. In this metastructure, the reinforcement cage, typically employed to enhance the tensile properties of building materials, has been redesigned and transformed into a new structure containing circular tubes with embedded resonant microstructures
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Dynamic behaviors of general composite beams using mixed finite elements Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-30 Jiaqing Jiang, Weiqiu Chen
A novel mixed finite element method is developed and implemented for analyzing the vibration and buckling behavior of general composite beams which consists both transversely layered and axially jointed materials. The governing state-space equations are derived using the Hamilton's principle, where both displacements and stresses are treated as fundamental variables. This semi-analytical method uses
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Elastic birefringent metamaterials and quarter-wave plate Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-30 Yu Wei, Ming Cai, Gengkai Hu
The elastic matrices of extremal metamaterials have one or more zero eigenvalues, allowing energy-free deformation modes. These elastic metamaterials can be well approximated by manufactured microstructures. They can exhibit an unprecedented capacity to manipulate bulk and surface waves, which are unavailable with conventional solids due to the easy deformation modes, as already exemplified by pentamode
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Atomistic understanding of ductile-to-brittle transition in single crystal Si and GaAs under nanoscratch Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-29 Xuliang Li, Mauricio Rincón Bonilla, Mingyuan Lu, Han Huang
Ensuring ductile removal in a grinding process is crucial for achieving the desired finish on a hard and brittle single crystal. This study provides new insights into the material removal processes in Si and GaAs single crystals, exploring their deformation behaviour using Berkovich and Conical tips to replicate contact from a fixed abrasive grit. Experimental observations are compared with Molecular
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Modeling magnetic soft continuum robot in nonuniform magnetic fields via energy minimization Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-29 Jiyu Li, Liu Wang
The emerging magnetic soft continuum robots (MSCRs) – a type of slender and soft rods with embedded hard-magnetic particles – hold great promise in endovascular intervention via remote magnetic actuation. Although numerous advantages of using permanent magnets have been demonstrated for manipulating MSCRs (e.g., simple systems with high actuation force, large operating workspace), the magneto-mechanical
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Double-strip metamaterial for vibration isolation and shock attenuation Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-29 Sen Yan, Lingling Wu, Zhiqiang Meng, Xiaojun Tan, Wenlong Liu, Yongzheng Wen, Jingbo Sun, Xiaoyong Tian, Ji Zhou
Mechanical metamaterials have emerged as a promising solution for shielding against environmental vibrations and shocks. However, most existing metamaterials provide a single functionality in mechanical protection, limiting their adaptability to complex working scenarios. To address this limitation, we propose a double-strip metamaterial (DSM) that achieves both vibration isolation and shock attenuation
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Energy absorption performance of Kresling origami tubes under impact loading Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-29 Wei Qiang, Haoxuan Feng, Tuo Zhou, Guoxing Lu, Xin Zhang
Thin-walled tubes with an origami design, particularly the Kresling pattern, exhibit superior mechanical properties compared to traditional straight tubes, including a more constant reaction force and predictable deformation. Despite their potential, research on these patterned structures, especially when made from structural materials like metal and tested under dynamic conditions, remains limited
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Design of broad quasi-zero stiffness platform metamaterials for vibration isolation Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-29 Kuan Liang, Yuhui Jing, Xiaopeng Zhang
Adaptability and reliability are challenges in designing vibration isolation structures, and mechanical metamaterials featuring broad quasi-zero stiffness (QZS) platforms are among the most promising candidates for addressing this issue. This paper proposes a novel design of vibration isolation metamaterials featuring a broad QZS platform to achieve vibration control in complex environments. The metamaterial
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Mechanism of uneven densification in PBX compression molding Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-28 Haitao Sun, Xiaoguang Fan, Mei Zhan, Jing Guo, Jun Zhang
The uneven density distribution during compression molding of polymer bonded explosive (PBX ) seriously affects the mechanical properties of high-energy material components and the precise output ability of shock waves. Investigating the multi-scale densification evolution laws and density non-uniformity mechanism of PBX composite powders is crucial for understanding the density non-uniformity phenomenon
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Vibroacoustic suppression of sandwich plates with imperfect acoustic black hole Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-28 Sen Zhang, Liangzhu Ding, Xinwei Wu, Yongbin Ma, Zichen Deng
Acoustic black holes (ABHs) have recently been revealed as an effective vibration-control technology. However, owing to their disadvantages such as low stiffness, structural discontinuity and manufacturing difficulties, ABHs are limited in terms of their practical application. Therefore, a multilayer composite sandwich plate with filled imperfect-ABH (F-IABH) is proposed in this study to attenuate
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Decoding ceramic fracture: Atomic defects studies in multiscale simulations Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-28 Junhao Chang, Haoyang Li, Zengtao Chen, James D. Hogan
Microstructural atomic defects, including voids, cleavage, and inclusions, are commonly observed in alumina materials, and their impact on mechanical properties, such as fracture stress and toughness, is significant. In this paper, we introduce novel alumina models that incorporate experimentally observed void features. An atomic model is established to study the effects of micro-structural void features
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Improving mechanical properties of lattice structures using nonuniform hollow struts Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-26 Chuang Liu, Rui Ni, Kang Ji, AiGuo Zhao, XiaoHao Sun, HengAn Wu
In contrast to constant-strut lattices, the introduction of innovative strut designs has the potential to enhance the mechanical properties of lattice structures. This study presents a Bézier curve-based nonuniform section design for body-centered cubic lattices with hollow struts (BCCH). Periodic boundary conditions are applied to the unit cells, and a finite element (FE) numerical homogenization
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Dumbbell-shaped piezoelectric energy harvesting from coupled vibrations Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-26 Haigang Tian, Daniil Yurchenko, Zhaoyu Li, Junfeng Guo, Xilong Kang, Junlei Wang
This paper presents a novel dumbbell-shaped piezoelectric energy harvesting from vortex-induced vibration (VIV) and galloping. The designed harvester system leverages the coupled vibrations to improve the output performance. The conceptual design of the dumbbell-shaped harvester system is first developed, the theoretical model of the harvester is then established, three-dimensional simulation analyses
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Design and investigation of flexible solar wing: In-plane dynamics Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-25 Yucheng Yan, Junlan Li, Hongchang Huang, Cheng Wang, Pan Li, Jiangping Mei, Baoyi Cheng, Dawei Zhang
Space satellites are increasingly using flexible solar wings. The dynamic behavior of the flexible solar array in orbit, which is related to the service life, has not been fully studied. In this paper, a new flexible hinge design is proposed for connecting multiple solar arrays, and its influence on the in-plane nonlinear dynamic characteristics of the array is investigated. The novelty of this research
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Sound transmission of truss-based X-shaped inertial amplification metamaterial double panels Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-23 Yonghang Sun, Gongshuo Zhang, Heow Pueh Lee, Hui Zheng, Zhong Luo, Fucai Li
To enhance the low-frequency sound insulation performance of conventional double panels, this work proposes a truss-based X-shape inertial amplification (TXIA) metamaterial double panel. A semi-analytical method is developed for computing the sound transmission loss (STL) of the TXIA metamaterial double panel, with numerical and experimental validations confirming the convergence and accuracy of this
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Design of functionally graded porous lattice structure tibial implant for TAR Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-23 Tanushi Jain, Jyoti, Minku, Gaurav Kumar Sharma, Rajesh Ghosh
Use of porous lattice structures and functionally graded (FG) implants in orthopaedic applications has emerged as a promising solution to reduce stress shielding. However, there is a notable research gap in examining the effects of post-operative scenarios within the lattice pores and different porosity distribution laws in functionally graded porous lattice structure (FGPLS) implants on the biomechanical
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Self-rotation of a liquid crystal elastomer rod under constant illumination Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-22 Yunlong Qiu, Dali Ge, Haiyang Wu, Kai Li, Peibao Xu
Self-sustaining systems can generate and maintain periodic or chaotic motion under constant external stimulation, and has potential applications in fields such as soft robotics, energy harvesting, and active machinery. However, self-sustaining systems often come with excessive oscillations and increased friction, which limit their applications. Unlike oscillatory self-sustaining systems, we have developed
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Aperiodicity induced robust design of metabeams: Numerical and experimental studies Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-22 Rohit Sachdeva, Debraj Ghosh
Various design strategies have been explored to achieve wide local resonance (LR) bandgaps in acoustic metamaterials (AMMs), which have applications in vibration absorption and low-frequency noise mitigation. Conventionally, most methodologies model AMMs as periodic systems. Additionally, maintaining a reasonable resonator mass is desirable for many engineering applications. These factors restrict
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Impact force measurement by in-plane piezoelectricity of polyvinylidene fluoride films Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-21 Chong Gao, Naoko Sakata, Takeshi Iwamoto, Yoshikazu Tanaka, Takayuki Kusaka
This manuscript provides a new idea to solve the problems related to measurement of impact force wave especially in the situation with a strong environment noise by utilizing the polyvinylidene fluoride (PVDF) film instead of strain gauge. According to our experimental results, an extremely high ratio between output signal and noise in environment (SN ratio) is realized even the infrequently employed
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A fast vibro-acoustic modeling method of plate-open cavity coupled systems Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-20 Miao Jin, Guoyong Jin, Xiaoji Song, Tiangui Ye, Yukun Chen
In this paper, a fast Chebyshev-Ritz method for vibro-acoustic analytical modeling of plate-open cavity coupled systems is developed for the first time. Based on the Chebyshev spectral method and the Rayleigh-Ritz solution procedure, the vibro-acoustic model of the open cavity coupled with a rectangular plate is established. The exterior acoustic field of the open cavity is expressed by the Rayleigh
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Turbulence approaches for numerical predictions of vehicle-like afterbody vortex flows Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-20 Zijian Guo, Xiaodong Chen, Tanghong Liu, Zhengwei Chen, Amir Bordbar
The numerical prediction of aerodynamic characteristics for vehicles is crucial to both industry and academia, with various numerical approaches playing a critical role in accurately resolving flow fields. This study aims to evaluate the effectiveness of three typical numerical approaches, including RANS, IDDES, and LES in predicting the afterbody vortex flows of a generic model, specifically a slanted-base
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Mechanical memory and relaxation decoupling of metallic glasses in homogenous flow Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-19 L.T. Zhang, Y.J. Wang, Y. Yang, T. Wada, H. Kato, J.C. Qiao
Due to the structural information submerged into the meta-stable disordered long-range structure, quantitative prediction of the time-dependent deformation of metallic glasses under mechanical stimuli is a challenging task. Specifically, the present understanding of relaxation behavior, particularly in relation to dynamic heterogeneity and the memory effect in metallic glasses during thermo-mechanical
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Rate-dependent and delayed snap-through behaviors of viscoelastic metamaterials Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-19 Tianzhen Liu, Ren Deng, Lihua Jin, Jianguo Cai
Snap-through instability can occur after a significant time delay for some viscoelastic structures under certain loading history; the mechanisms of this phenomenon in viscoelastic metamaterials are still unrevealed. This work uses a combined method of experiments, finite element analysis (FEA), and analytical modeling to investigate the rate-dependent and delayed snap-through behavior of viscoelastic
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Soundbox-based sound insulation measurement of composite panels with viscoelastic damping Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-18 Gongshuo Zhang, Hui Zheng, Yongzhen Mi, Fucai Li
Sound transmission loss (STL), an essential index for assessing the sound insulation performance of composite laminated structures, typically relies on experimental methods to measure. The soundbox method (SBM), a straightforward technique for measuring the STL, is sensitive to microphones’ positions. Within the framework of the Chebyshev-Ritz method, a semi-analytical vibro-acoustic model extended
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Stress-dependent instantaneous cohesion and friction angle for the Mohr–Coulomb criterion Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-18 Hao Li, Leo Pel, Zhenjiang You, David Smeulders
The strength criterion of rock is essential for stability control and safety design of geotechnical engineering constructions. Due to its widespread adoption, the Mohr–Coulomb (M-C) criterion is prominent among strength criteria. However, the M-C criterion is constrained by three significant limitations: it fails to capture the nonlinear strength response, overlooks the critical state, and disregards
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Implementation of variable cross-section curved beam in train-turnout dynamic interactions Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-17 Yuhao Ren, Shuai Qu, Jianjin Yang, Jun Luo, Shengyang Zhu, Wanming Zhai
The abundance of variable cross-section curved rails in railway turnouts emphasizes the necessity of intricately modeling them, which facilitates a more accurate evaluation of train-turnout interactions. This study presents a general formulation for analyzing both free and forced vibrations of a variable cross-section curved Timoshenko beam and its implementation in train-turnout dynamic interactions
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Large eddy simulation of round jets with mild temperature difference Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-17 Siyang Qin, Guanjiang Chen, Feng Shan, Wei Liu, Bin Zang
Understanding the behaviour of hot jets is crucial for various engineering and environmental applications. The present work studies the influence of heat transfer on the dynamics of horizontal round hot jets through Large Eddy Simulations (LES). Our focus lies on trajectory development, large-scale coherent structures, and turbulent kinetic budget analysis in the near-field and intermediate-field regions
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Mechanics and thermodynamics of multivalent-binding induced shrinkage of hydrogels Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-17 Barathan Rajendran, Xiao Chen, Xin Wang, Tao Wu, K.B. Goh
Understanding the fundamental mechanism of shrink hydrogel sensors necessitates a complete comprehension of analyte-centered multivalent binding that occurs within their salt-rich microenvironments. However, the mechanics and thermodynamics governing this phenomenon remain insufficiently understood. Here, we aim to derive a theoretical framework that examines the impact of temporary cross-link formation
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A multi-scale mechanical model of multilevel helical structures with filament damage Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-15 Yuchen Han, Huadong Yong, Youhe Zhou
Multilevel helical structures are widely used in biology and engineering fields. The multilevel helical structure exhibits interesting and complex mechanical behaviors due to the hierarchical feature and interactions between various structural scales. Herein, by extending the straight filament shear-lag model, a multi-scale damage mechanical model including the helical filament and sub-cable scales
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A filling lattice with actively controlled size/shape for energy absorption Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-14 Qiqi Li, Yufeng Qin, Wenjie Gan, Eric Li, Lin Hu, Li Xu, Yongxue Guan
This study unveils a groundbreaking development: the chain lattice structure (CLS), a unique lattice with the capability to actively adjust its size and shape for filling diverse thin-walled structures, thereby enhancing their energy absorption characteristics. Traditional lattice structures, known for excellent energy absorption, are constrained by fixed sizes and shapes post-fabrication, limiting
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Energy generation from friction-induced vibration of a piezoelectric beam Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-14 Yu Xiao, Nan Wu, Quan Wang
The primary challenge in harnessing vibration energy with piezoelectric materials is the discrepancy in frequency between the energy source and the energy generator, which lowers the efficiency of energy harvesting. To address the challenge, a piezoelectric beam under friction-induced vibration (FIV) is designed, modeled, and studied for the first time to realize the pronounced FIV contributing to
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A phase field method for predicting hydrogen-induced cracking on pipelines Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-14 Jian Zhao, Y. Frank Cheng
An accurate determination of the threshold conditions to initiate cracks on aged hydrogen pipelines is paramount for ensuring energy transport safety. In this work, a finite element-based phase field method was developed to assess the crack initiation on dented pipelines while considering the hydrogen (H) impact. Theoretical and multi-physics numerical formulas were derived for prediction of the elastic-plastic
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Multi-scale approach to hydrogen susceptibility based on pipe-forming deformation history Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-13 Berk Tekkaya, Michael Dölz, Sebastian Münstermann
Hydrogen-induced-cracking initiates without external loading due to residual stresses. Pipe manufacturing process composed of crimping, -ing, -ing, and expansion has a major impact on local hydrogen concentration, as strain pattern evolves from one forming step to another, causing residual stresses that serve as driving force for hydrogen diffusion. The novelty of the presented work lies in the development
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An analytic solution for bending of multilayered structures with interlayer-slip Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-12 Shenyou Peng, Zelin Zhu, Yujie Wei
Layered structures are prevalent in both natural environments and engineered composite materials. The elastic bending behavior of these structures is primarily governed by properties of their abundant interfaces. While the behavior of two- and three-layered beams has been extensively studied, this research shifts the focus to the impact of elastic shearing at interfaces on the deflection of multilayered
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Safety-enhanced battery modules with actively switchable cooling and anti-impact functions Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-12 Yang Xiong, Bo Rui, Shanwei Wang, Yicheng Song, Bo Lu, Junqian Zhang
In this paper, a magnetically controlled multifunctional smart material system based on magneto-sensitive shear thickening fluid (MSTF) is proposed for the safety-enhanced lithium-ion battery (LIB) modules. The rheological behavior of the MSTF can be intelligently manipulated by a magnetic field, allowing its function in the battery module to be actively and rapidly switched between cooling and impact
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Hybrid honeycomb structure for enhanced broadband underwater sound absorption Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-11 Chuxiang Cai, Fengxian Xin
A hybrid honeycomb structure (HHS) with energy dissipation enhancement effect is proposed for broadband underwater sound absorption. The HHS is constructed using hexagonal honeycomb structure with embedded metal rings of different size and filled with viscoelastic rubber. A theoretical model is developed to study the sound absorption performance of the HHS by applying the transfer matrix method, and
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Shock-induced nanoscale pore collapse and hotspot in cyclotetramethylene tetranitramine (HMX) Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-11 Kai Ding, XinJie Wang, FengLei Huang
Pore collapse induced hotspot formation is a key mechanism for initiating detonation of shocked high explosives. Accurate continuum models that faithfully capture the pore collapse dynamics and resulting hotspot temperatures for multiscale initiation of high explosive are still lacking. Here, an atomistically informed dislocation plasticity model is developed for cyclotetramethylene tetranitramine
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Characterization and modeling of biaxial plastic anisotropy in metallic sheets Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-11 Zhenkai Mu, Jiale Liu, Wei Wang, Xuerui Dai, Shibo Ma, Yong Hou
The anisotropic behavior of cold-rolled sheet metals has been extensively studied, typically characterized by uniaxial loading tests in different directions to determine yield strengths and plastic flow (Lankford -values). However, biaxial principal stress states often focus solely on yield loci in the RD/TD (rolling/transverse) directions, with limited studies on other loading directions. This study
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Spherical-based porous architectures: In silico design and validation Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-10 Pasquale Posabella, Marcin Heljak, Marco Costantini, Wojciech Święszkowski
Porous (or cellular) materials, like wood and bones, are abundantly found in nature for structural purposes. Thanks to the advancements of evolving technologies, the fabrication of intricate cellular structures was possible. Notably, functionally graded porous structures offer superior mechanical and physical properties compared to their uniform counterparts. Additive manufacturing, especially light-based
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Emergence of metadamping in thin-walled mono-symmetric metabeam: Homogenization approach Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-10 Arindam Das, Kamal K. Bera, Arnab Banerjee
The paper presents a unified homogenization-based methodology to estimate the damping enhancement, known as metadamping, for a thin-walled mono-symmetric beam (TWMSB) having periodically placed damped resonators. The dispersion equation for a damped TWMSB with a damped resonator, incorporating the influence of warping and two types of damping, namely strain-rate and velocity-dependent viscous damping
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Heat and mass transfer behavior in CMT plus pulse arc manufacturing Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-10 Qingze Gou, Zhiqiang Zhang, Lianyong Xu, Dongquan Wu, Tiangang Zhang, Hongli Liu
The metal transfer mode, temperature distribution, flow behavior, and microstructure characteristic in the process of cold metal transfer plus pulse (CMT+P) arc manufacturing were investigated by the in-situ observation and numerical simulation. A novel coupling model for droplet-pool interaction under the CMT+P arc was established, along with a new heat source model that considered Marangoni forces
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Levitation force enhancing and vibration reducing of NFAL via air-film compensation Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-10 Pengfei Zhang, Wenjun Li, Shenling Cai, Shirui Cao, Kai Feng
Near-field acoustic levitation (NFAL) is an innovative contactless handling technology with extensive potential in precision manufacturing and microelectromechanical systems. Despite its promise, challenges persist in addressing low levitation force and inevitable vibration issues in noncontact positioning and handling processes. This study introduces methods to enhance levitation force and reduce
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A novel windmill-shaped auxetic structure with energy absorption enhancement Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-10 Chuanbiao Zhang, Fucong Lu, Tinghui Wei, Yunjun Huang, Yi He, Yilin Zhu
The traditional anti-tetra-missing rib structure often suffers from uneven stress deformation and poor energy absorption, which limits its engineering applications. To address these limitations, this paper proposed a novel windmill-shaped auxetic structure by incorporating reinforcing ligaments into the traditional anti-tetra-missing rib structure. The incorporation of these reinforcing ligaments ensures
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Output-only modal identification of full-field time-domain data for heated hybrid hollow sandwich structures Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-08 Fuhao Peng, Rui Zhao, Kaiping Yu, Guoqing Jiang, Tianci Li, Shuang Wang, Jinze Li, Bin Ma
In order to enhance the efficacy of decomposing output-only vibration response signals and conducting adaptive signal analysis, this paper introduces a novel non-parametric modal identification methodology tailored for multi-sensor signals. This approach synergistically integrates successive multivariate variational mode decomposition (SMVMD) and high-speed three-dimensional digital image correlation
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CFRP-strengthened shear walls: Combined effects of CFRP and reinforcement ratio Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-08 Liu Jin, Binlin Zhang, Fengjuan Chen, Xiuli Du
This study presents a three-dimensional numerical model based on the Hashin damage criteria to assess the seismic performance of Carbon Fiber Reinforced Polymer (CFRP)-strengthened Reinforced Concrete (RC) shear walls, accurately capturing the rupture of CFRP strips. The effectiveness of various CFRP-concrete interface modeling methods in capturing CFRP debonding was initially discussed. A series of
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Strain-independent auxetic metamaterials inspired from atomic lattice Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-08 Jiahui Zhou, Yingzhuo Lun, Yingtao Zhao, Hongshuai Lei, Yu Lei, Kai Wei, Zewei Hou, Jiawang Hong
Metamaterials with strain-independent negative Poisson's ratio (NPR) and Young's modulus are essential for the applications with extreme loading conditions. However, strain-independent auxetic metamaterials are rare, and there is a lack of design inspiration for them. In this paper, we present a novel auxetic metamaterial inspired from the atomic lattice with strain-independent NPR. The novel NPR properties
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Low frequency coupled bandgap regulation of staggered piezoelectric supercell beam Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-08 Wentao Wu, Xiaobiao Shan, Huan Zhang, Chenghui Sun, Xuteng Du, Zhaowei Min
The study proposes a staggered piezoelectric supercell beam to enhance the traditional passive periodic metamaterial bandgap. This beam features varying inductance in each cell and different degrees of interlacing in the piezoelectric plate. By adjusting the degree of staggering, the attenuation constant of the locally resonant bandgap is improved, and a low-frequency broadband bandgap is created.
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Effect of tool vibration trajectory on vibration-assisted diamond-cutting structural color Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-08 Changcheng Lin, Yang Yang
Nano-gratings induced structural color is of great value in various anti-counterfeiting and decoration applications. Despite the attractive rendering performances, the manipulation strategy for vibration-assisted diamond-cutting structural color is far from complete due to the intrinsically limited tool trajectory designs. The novelty of this paper lies in the precise generation and control of non-harmonic
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A lamellar-morphology-based computational modeling for predicting the thermal conductivity of semicrystalline polymers Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-06 Hongdeok Kim, Joonmyung Choi
Molecular-scale design of crystal structures is an emerging approach for significantly improving the intrinsic properties of polymers. In this study, we performed computational modeling to quantitatively predict the thermal conductivity of polymers based on their crystal morphology. Polyethylene lamellae with alternating crystalline and amorphous phases were prepared using isothermal crystallization
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Effects of rotating microgroove on tribo-dynamic performance of coupled bearings Int. J. Mech. Sci. (IF 7.1) Pub Date : 2024-08-06 Tianyou Yang, Ke Xiao, Guo Xiang, Liwu Wang, Jianlin Cai, Jiaxu Wang
The purpose of this study is to assess the role of rotating microgrooves, manufactured in both the journal and thrust bearing parts, on the transient tribo-dynamic performance of microgroove coupled journal-thrust water-lubricated bearings (referred to as microgroove coupled bearings). The microgrooves that rotate synchronously with propeller, along with mass conservation cavitation, are incorporated