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学者姓名：薛新
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Abstract ：
As a novel porous material with high elasticity and large damping capacity, elastic-porous metal rubber (EPMR) is considered as an ideal element for the flexible core layer of sandwich shell structure. The microstructural morphologies of typical EPMR in the axial direction exhibit significant gradient characteristics, which have not been considered during the mechanical characterizations so far. In this work, the density gradient lamination model of EPMR was developed based on fractal theory. The effect of heterogeneous pore distribution on the mechanical response of EPMR was investigated by means of experimental and numerical methods. The results indicate that the pore structure of EPMR presents a negative axisymmetric gradient distribution in the axial direction. The proposed density gradient lamination model effectively captures the super-elastic deformation behavior of EPMR subjected to compression loading, but there is still a prediction gap concerning hysteresis characteristics. © 2025 Institute of Physics Publishing. All rights reserved.
Keyword ：
Bulk Density Bulk Density Elastic deformation Elastic deformation Elasticity Elasticity Elastohydrodynamic lubrication Elastohydrodynamic lubrication Fractals Fractals Pore structure Pore structure
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| GB/T 7714 | Ge, Shaoxiang , Wei, Yuhan , Xue, Xin . Mechanical characterization of elastic-porous metal rubber based on gradient lamination model and fractal theory [C] . 2025 . |
| MLA | Ge, Shaoxiang 等. "Mechanical characterization of elastic-porous metal rubber based on gradient lamination model and fractal theory" . (2025) . |
| APA | Ge, Shaoxiang , Wei, Yuhan , Xue, Xin . Mechanical characterization of elastic-porous metal rubber based on gradient lamination model and fractal theory . (2025) . |
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Interpenetrating composites have a wide range of applications such as robotics and aerospace, due to their excellent load-bearing capacity and large elastic recovery. In this work, a novel metal/plastic composite namely orthogonal spiral metal skeleton-polyurethane composite (OSMS-PU) is proposed. The mechanical properties and deformation characteristics of OSMS-PU under quasi-static compression were investigated by means of experimental and numerical methods. The effects of key geometrical structure parameters such as the diameter and the pitch of spiral wire on the compression properties and Poisson’s ratio were performed. The results show that at 60 % strain field, the compressive strength of OSMS-PU increases by 54 % compared to that of polyurethane, while the strain recovery capability can be up to 94 %. This means that the proposed OSMS-PU exhibits a good performance balance between load-bearing capacity and large elastic recovery characteristics. The orthogonal spiral metal skeleton by altering the structural parameters of the lateral spiral wire suppresses the swelling phenomenon of the interpenetrating composite, in which the Poisson’s ratio is in the range from 0.45 to 0.65. © 2025 Institute of Physics Publishing. All rights reserved.
Keyword ：
Bearings (machine parts) Bearings (machine parts) Compressive strength Compressive strength Musculoskeletal system Musculoskeletal system Poisson ratio Poisson ratio
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| GB/T 7714 | Ye, Zixiong , Liu, Jianchao , Xue, Xin . Mechanical properties of an orthogonal spiral metal skeleton-polyurethane composite [C] . 2025 . |
| MLA | Ye, Zixiong 等. "Mechanical properties of an orthogonal spiral metal skeleton-polyurethane composite" . (2025) . |
| APA | Ye, Zixiong , Liu, Jianchao , Xue, Xin . Mechanical properties of an orthogonal spiral metal skeleton-polyurethane composite . (2025) . |
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To address the unclear matching issue between the vacuum brazing process of sandwich panel with metal rubber core and its material properties, simulation and orthogonal experimental methods were employed to investigate the influence of heating rate, maximum heating temperature, and holding time on the shear performance and connection strength. In addition, the shear damage behavior of the sandwich panel was analyzed by macro and micro method. The results indicate that sandwich panel prepared by vacuum brazing process exhibits excellent shear and connection strength. During the vacuum brazing process, the temperature deviation at all selected sample points is less than 10 K. Additionally, the residual stress is primarily concentrated at the junction of the wire and the solder, and the nearer the distance to central region, the smaller the residual stress. The maximum residual stress is negatively correlated with the shear performance and joining strength of the sandwich panel. Moreover, the optimum technological parameter (1090 ℃, 4 ℃/min and 20 min) of the brazing process for fabricating the sandwich panel is obtained by range analysis. © 2025 Science Press. All rights reserved.
Keyword ：
Gluing Gluing Honeycomb structures Honeycomb structures Vacuum brazing Vacuum brazing
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| GB/T 7714 | Wei, Yuhan , Ge, Shaoxiang , Xue, Xin . Effect of Vacuum Brazing on Bonding Strength Between Metal Rubber Core and Panel [J]. | Rare Metal Materials and Engineering , 2025 , 54 (2) : 421-428 . |
| MLA | Wei, Yuhan 等. "Effect of Vacuum Brazing on Bonding Strength Between Metal Rubber Core and Panel" . | Rare Metal Materials and Engineering 54 . 2 (2025) : 421-428 . |
| APA | Wei, Yuhan , Ge, Shaoxiang , Xue, Xin . Effect of Vacuum Brazing on Bonding Strength Between Metal Rubber Core and Panel . | Rare Metal Materials and Engineering , 2025 , 54 (2) , 421-428 . |
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Satellites experience complex vibrational environments during their launch and operation, potentially leading to structural failures and equipment damage. This work aimed to mitigate this issue by designing a variable cross-sectional metal rubber isolator (VCMRI), which was fully constructed from metal and featured a symmetric structure. Initially, a finite element model of the VCMRI was developed, incorporating symmetric boundary conditions and employing the Bergstr & ouml;m-Boyce model to define variable cross-sectional metal rubber (VCMR) parameters. Subsequently, sinusoidal sweep tests were performed to investigate how variations in VCMR density, spring stiffness, and exc itation deflection angle affect the peak acceleration response and natural frequency of the VCMRI. Finally, simulation analyses were conducted and insertion loss was derived from the results to assess the vibration isolation performance of the VCMRI. The results indicate that the finite element model accurately captures the dynamic behavior of the VCMRI with minimal error. In addition, the VCMRI demonstrates robust vibration isolation performance by effectively integrating the influences of VCMR density, spring stiffness, and excitation angle, achieving insertion losses of up to 19.2 dB across a wide frequency range. It provides robust theoretical support for the design and performance optimization of isolation systems, with potential positive impacts on relevant engineering applications.
Keyword ：
finite element model finite element model insertion loss insertion loss isolator isolator metal rubber metal rubber sinusoidal sweep frequency sinusoidal sweep frequency
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| GB/T 7714 | Liu, Jianchao , Liu, Xinzhe , Wang, Hanbin et al. Structural Design and Vibro-Mechanical Characterization Analysis of Variable Cross-Sectional Metal Rubber Isolator [J]. | SYMMETRY-BASEL , 2025 , 17 (3) . |
| MLA | Liu, Jianchao et al. "Structural Design and Vibro-Mechanical Characterization Analysis of Variable Cross-Sectional Metal Rubber Isolator" . | SYMMETRY-BASEL 17 . 3 (2025) . |
| APA | Liu, Jianchao , Liu, Xinzhe , Wang, Hanbin , Ye, Zixiong , Xue, Xin . Structural Design and Vibro-Mechanical Characterization Analysis of Variable Cross-Sectional Metal Rubber Isolator . | SYMMETRY-BASEL , 2025 , 17 (3) . |
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Lattice structures have attracted significant scholarly attention due to their exceptional mechanical properties, including lightweight characteristics and high strength. Their multifunctionality, such as energy absorption and vibration reduction, adds to their versatility. While extensive research has been conducted on the vibration reduction performance of plate-type, shell-type, and truss-type lattice structures, studies on cylindrical lattice structures are comparatively limited. To achieve broadband vibration suppression in cylindrical structures, this study proposes a novel cylindrical structure based on pyramid cells. The vibration suppression performance and the bandgap formation mechanism of the pyramid cylindrical lattice skeleton structure are examined, with a quantitative analysis of the influence of structural parameters on vibration suppression performance using normalized indicators. Results indicate that the structure demonstrates multiple bandgaps within the 0-1500 Hz range, exhibiting substantial vibration attenuation capabilities. Additionally, adjusting parameters enables the bandgap to shift toward lower frequencies. Finally, the experimental verification of finite element model has been performed by comparing the vibration transmission curves with a maximum relative error of -7.48% at the resonance peak. This work offers valuable insights for the application of cylindrical lattice structures in vibration and noise control fields.
Keyword ：
bandgap bandgap pyramidal cylinder lattice structure pyramidal cylinder lattice structure vibration suppression performance vibration suppression performance
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| GB/T 7714 | Xue, Xin , Zeng, Qin , Wu, Fang et al. Vibration and Bandgap Characteristics Analysis of Pyramid Cylinder Lattice Skeleton Structure [J]. | ADVANCED ENGINEERING MATERIALS , 2025 , 27 (7) . |
| MLA | Xue, Xin et al. "Vibration and Bandgap Characteristics Analysis of Pyramid Cylinder Lattice Skeleton Structure" . | ADVANCED ENGINEERING MATERIALS 27 . 7 (2025) . |
| APA | Xue, Xin , Zeng, Qin , Wu, Fang , Liao, Juan , Zhang, Mangong . Vibration and Bandgap Characteristics Analysis of Pyramid Cylinder Lattice Skeleton Structure . | ADVANCED ENGINEERING MATERIALS , 2025 , 27 (7) . |
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This study addresses the enhancement of thermal stability of zinc alloys, which commonly experience reduced mechanical performance beyond 100 degrees C. The 304 stainless steel wires (SSWs) were utilized to fabricate a 3D porous metal rubber (MR) skeleton, facilitating the infusion of molten zinc alloys (ZA8) via squeeze casting to prepare MR/ZA8 composites. The impact of varying SSW volume fractions on the static compression creep (SCC) behavior of the MR/ZA8 composites at 250 degrees C was investigated, while exploring their SCC failure mechanisms. Energy dispersive spectrometer was used to analyze the MR/ZA8 composites both before and after the creep experiments. Findings revealed that in comparison to ZA8, MR/ZA8 composites exhibited notably lower SCC strain, diminishing with the increased SSW volume fraction. Under the applied stresses of 12 MPa, 17 MPa and 20.4 MPa, the steady-state SCC rate of MR/ZA8 composites experienced a reduction of 1 order of magnitude compared to ZA8. The apparent stress exponent n value ranged from 3.37 to 4.84, indicating a SCC mechanism dominated by dislocation climb within the two materials. The elemental composition of the MR/ZA8 composites remained largely unchanged, and the MR skeleton in the MR/ZA8 did not undergo oxidation.
Keyword ：
Failure mechanism Failure mechanism Metal rubber skeleton Metal rubber skeleton Squeeze casting Squeeze casting Static compression creep behavior Static compression creep behavior Zinc alloy matrix composite Zinc alloy matrix composite
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| GB/T 7714 | Lai, Fuqiang , Zhou, Ziang , Hu, Anqiong et al. Static compression creep behavior of MR/ZA8 composite at elevated temperature [J]. | MATERIALS TODAY COMMUNICATIONS , 2025 , 42 . |
| MLA | Lai, Fuqiang et al. "Static compression creep behavior of MR/ZA8 composite at elevated temperature" . | MATERIALS TODAY COMMUNICATIONS 42 (2025) . |
| APA | Lai, Fuqiang , Zhou, Ziang , Hu, Anqiong , Gao, Guilin , Wu, Yiwan , Zhang, Guosen et al. Static compression creep behavior of MR/ZA8 composite at elevated temperature . | MATERIALS TODAY COMMUNICATIONS , 2025 , 42 . |
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This work aims to identify ways to achieve dynamic performances of a novel double-layer vibration isolation system (DL-VIS) capable of achieving multi-directional isolation and extreme environmental adaptability. A forward modeling approach applicable to complex systems has been developed and analyses of nonlinear dynamic characteristics under different working conditions are performed. First, by integrating with constitutive models in terms of individual elastic elements and the connective relationships within the structure, multidirectional constitutive models for isolation devices are established. Further, the decomposition of linear and nonlinear stiffness components in different directions is performed using the Taylor expansion method. Subsequently, the dynamic response under sinusoidal sweep frequency loading is obtained using the related stiffnesses in the dynamic model and adopting the extended harmonic balance method. The effects of stiffness, damping, and a nonlinear stiffness gradient on the DL-VIS response are thoroughly evaluated. Finally, the vibration isolation performance and nonlinear dynamics under different working conditions are examined, and the proposed dynamic model is experimentally validated. The results indicate that the response of DL-VIS varies significantly under different working conditions, particularly under overload conditions. The nonlinear characteristics lead to wide-band instability near the natural frequency and excellent vibration attenuation performance in multiple directions. The theoretical model agrees well with the experimental results in the nonresonant region and near the first resonant peak, which proves the prediction accuracy in the low-frequency range. These findings provide robust theoretical and technical support for the design and performance optimization of isolation systems. © 2024 The Author(s). International Journal of Mechanical System Dynamics published by John Wiley & Sons Australia, Ltd on behalf of Nanjing University of Science and Technology.
Keyword ：
Constitutive models Constitutive models Digital elevation model Digital elevation model System theory System theory Vibration analysis Vibration analysis
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| GB/T 7714 | Zheng, Chao , Gao, Jin , Liu, Jianchao et al. Dynamic Performances of a Double-Layer Vibration Isolation System: Nonlinear Modeling and Experimental Validation [J]. | International Journal of Mechanical System Dynamics , 2025 , 5 (1) : 113-128 . |
| MLA | Zheng, Chao et al. "Dynamic Performances of a Double-Layer Vibration Isolation System: Nonlinear Modeling and Experimental Validation" . | International Journal of Mechanical System Dynamics 5 . 1 (2025) : 113-128 . |
| APA | Zheng, Chao , Gao, Jin , Liu, Jianchao , Xue, Xin . Dynamic Performances of a Double-Layer Vibration Isolation System: Nonlinear Modeling and Experimental Validation . | International Journal of Mechanical System Dynamics , 2025 , 5 (1) , 113-128 . |
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Abstract ：
为解决新型金属橡胶夹芯板的真空钎焊连接工艺参数与材料性能匹配不明确的问题,采用仿真与正交试验相结合的方法,研究了加热速率、最高加热温度以及保温时间对其剪切性能和结合强度的影响规律,并从宏细观角度分析了金属橡胶夹芯板的剪切损伤行为.结果表明,采用真空钎焊制备的金属橡胶夹芯板具有良好的剪切和连接强度.真空钎焊过程中,样件各区域温度相差不超过10K.其残余应力主要集中在丝材与钎料结合处,且越靠近中心区域残余应力越小.最大残余应力与金属橡胶夹芯板的剪切性能和连接强度呈负相关.此外,通过极差分析得到制备金属橡胶夹芯板的最优钎焊工艺方案为1090 ℃,4 ℃/min 和 20min.
Keyword ：
剪切性能 剪切性能 夹芯结构 夹芯结构 残余应力 残余应力 真空钎焊 真空钎焊 金属橡胶 金属橡胶
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| GB/T 7714 | 魏雨函 , 葛绍祥 , 薛新 . 真空钎焊对金属橡胶芯材与面板结合强度的影响 [J]. | 稀有金属材料与工程 , 2025 , 54 (2) : 421-428 . |
| MLA | 魏雨函 et al. "真空钎焊对金属橡胶芯材与面板结合强度的影响" . | 稀有金属材料与工程 54 . 2 (2025) : 421-428 . |
| APA | 魏雨函 , 葛绍祥 , 薛新 . 真空钎焊对金属橡胶芯材与面板结合强度的影响 . | 稀有金属材料与工程 , 2025 , 54 (2) , 421-428 . |
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The plasticity of magnesium alloys is inherently constrained by their hexagonal close-packed (HCP) crystal structure and limited slip system at room-temperature, which restricts their widespread application across various industries. Therefore, identifying an effective method to enhance the plasticity and formability of magnesium alloys remains essential. In this study, the mechanical behavior of AZ31B Mg alloy was examined under the combined influence of ultrasonic vibration (UV) and a thermal field. Tensile tests incorporating UV and thermal assistance were performed on the sheets at amplitudes ranging from 0 to 50.7 mu m and strain rates between 10-2 and 10-4 s-1 at a temperature of 150 degrees C. Microstructural evolution during deformation was analyzed using optical microscopy (OM) and electron backscattered diffraction (EBSD). The results indicate that under hybrid energy fields, the interaction between UV and strain rate significantly affects the flow stress, elongation, and the critical strain required for dynamic recrystallization (DRX) in Mg alloys. Furthermore, microstructural analysis reveals that the incorporation of UV within the thermal field facilitates intra-grain rotation and deformation, promotes DRX, particularly continuous DRX, and enables dislocation migration from the grain boundary to the grain interior. Consequently, a notable improvement in plasticity is observed across the tested strain rate range when UV is applied at suitable amplitudes. However, excessive amplitudes lead to contrasting variations in mechanical behavior, DRX extent, and dislocation movement. Additionally, the underlying mechanisms responsible for these effects have been clarified.
Keyword ：
Hybrid energy fields Hybrid energy fields Magnesium alloy Magnesium alloy Microstructure evolution Microstructure evolution Strain rate Strain rate Ultrasonic vibration Ultrasonic vibration Warm deformation Warm deformation
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| GB/T 7714 | Liao, Juan , Zhang, Yue , Huang, Youchun et al. Ultrasonic vibration-induced macro-micro behaviors of AZ31 magnesium alloy sheet during warm tension at various strain rates [J]. | MATERIALS TODAY COMMUNICATIONS , 2025 , 46 . |
| MLA | Liao, Juan et al. "Ultrasonic vibration-induced macro-micro behaviors of AZ31 magnesium alloy sheet during warm tension at various strain rates" . | MATERIALS TODAY COMMUNICATIONS 46 (2025) . |
| APA | Liao, Juan , Zhang, Yue , Huang, Youchun , Xue, Xin . Ultrasonic vibration-induced macro-micro behaviors of AZ31 magnesium alloy sheet during warm tension at various strain rates . | MATERIALS TODAY COMMUNICATIONS , 2025 , 46 . |
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Metallic sandwich panels featuring cellular metal cores are widely utilized across various sectors due to their exceptional load-bearing efficiency and design versatility. However, their application is often limited by the challenge of shaping complex geometries. This study introduces a novel thin sandwich panel incorporating stainless steel wire mesh (SSWM) core, designed to offer both lightweight properties and enhanced flexibility. Mechanical properties and forming limit diagrams of the sandwich sheet are assessed through tensile tests and Nakajima forming tests. The study investigates how the SSWM stacking angle and strain paths influence the panel's failure behavior and formability. Comparative analyses with monolithic stainless steel sheets of identical dimensions are also conducted. The findings reveal that the sandwich sheet exhibits comparable formability to the monolithic sheet in the tension-compression stain zone, with about 32% higher average specific tensile strength compared to the monolithic counterpart. Importantly, the formability and failure characteristics of the sandwich panel are significantly influenced by in-plane shear deformation of the SSWM core, which is primarily dictated by the SSWM stacking angle and strain paths. Notably, the sandwich sheet with 45 degrees stacking angle demonstrates superior plasticity and formability.
Keyword ：
failure behaviors failure behaviors formability formability sandwich panels sandwich panels stainless steel wire mesh stainless steel wire mesh
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| GB/T 7714 | Liao, Juan , Qian, Jinhang , Cao, Houchen et al. Formability and Failure Behavior of a Thin Sandwich Panel with Stainless Steel Wire Mesh [J]. | ADVANCED ENGINEERING MATERIALS , 2025 , 27 (4) . |
| MLA | Liao, Juan et al. "Formability and Failure Behavior of a Thin Sandwich Panel with Stainless Steel Wire Mesh" . | ADVANCED ENGINEERING MATERIALS 27 . 4 (2025) . |
| APA | Liao, Juan , Qian, Jinhang , Cao, Houchen , Xue, Xin . Formability and Failure Behavior of a Thin Sandwich Panel with Stainless Steel Wire Mesh . | ADVANCED ENGINEERING MATERIALS , 2025 , 27 (4) . |
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