【新文速递】2025年1月9日固体力学SCI期刊最新文章

 

今日更新：International Journal of Solids and Structures 1 篇，Journal of the Mechanics and Physics of Solids 1 篇，International Journal of Plasticity 1 篇，Thin-Walled Structures 5 篇

International Journal of Solids and Structures

Modified vibro-acoustic spectrum characteristics for underwater cylindrical shells with mechanical metastructures

Yaoze Zhuang, Deqing Yang, Qing Li, Xiaoming Geng

doi:10.1016/j.ijsolstr.2025.113219

具有力学元结构的水下圆柱壳的改进振声频谱特性

The vibro-acoustic spectrum characteristics for underwater thin-walled structures continue to attract attention. This study presents a load-bearing, wide-bandgap metastructure for modifying vibro-acoustic spectrum characteristics of a cylindrical shell. Initially, methods for calculating and evaluating the load-bearing capacity and bandgap characteristics of unit cells are established. Subsequently, an annular metastructure is configured in a cylindrical coordinate, broadening the bandgap and the range of radiated noise suppression through compound unit cells. Finally, by localized mass and reinforcement, the enhancement of macroscopic structural load-bearing capacity and the modified spectrum characteristics are achieved. This study provides a cylindrical shell in which internal vibration transmits through the flange to the shell and then generates radiated noise. The sound power of the assemblywhich is equipped with either the original support or the metastructures was obtained through experiments and simulations. The experimental study demonstrated a 3.1 dB noise reduction across a broad frequency range from 824 Hz to 1500 Hz, with over 50 % of the frequency characteristics significantly altered. Furthermore, the metastructure achieved a weight reduction of 2.16 kg compared with the original configuration. This study not only achieves the evaluation of the load-bearing capacity of the microscopic unit cell but also realizes the amplitude suppression and spectrum modification of radiated noise for underwater cylindrical shells.

水下薄壁结构的声振谱特性一直备受关注。本研究提出了一种用于改变圆柱壳振动声频谱特性的承载、宽带隙元结构。首先，建立了计算和评价单元胞的承载能力和带隙特性的方法。随后，在柱面坐标上配置环形元结构，通过复合单元胞扩大带隙和辐射噪声抑制范围。最后，通过局部质量和配筋，实现了宏观结构承载力的增强和谱特性的修正。本研究提供了一种圆柱形壳体，其内部振动通过法兰传递到壳体，并产生辐射噪声。通过实验和仿真，得到了装配原支架和装配元结构时的声功率。实验研究表明，在824 Hz到1500 Hz的宽频率范围内，噪声降低了3.1 dB，超过50% %的频率特性显着改变。此外，与原始配置相比，该元结构的重量减轻了2.16 kg。本研究不仅实现了微观单元胞的承载能力评价，而且实现了水下圆柱壳辐射噪声的幅度抑制和频谱修正。

Journal of the Mechanics and Physics of Solids

Enhancement of adhesion strength through microvibrations: Modeling and experiments

Michele Tricarico, Michele Ciavarella, Antonio Papangelo

doi:10.1016/j.jmps.2024.106020

通过微振动增强附着力：建模和实验

High-frequency micrometrical vibrations have been shown to greatly influence the adhesive performance of soft interfaces, however a detailed comparison between theoretical predictions and experimental results is still missing. Here, the problem of a rigid spherical indenter, hung on a soft spring, that is unloaded from an adhesive viscoelastic vibrating substrate is considered. The experimental tests were performed by unloading a borosilicate glass lens from a soft PDMS substrate excited by high-frequency micrometrical vibrations. We show that as soon as the vibration starts, the contact area increases abruptly and during unloading it decreases following approximately the JKR classical model, but with a much increased work of adhesion with respect to its thermodynamic value. We find that the pull-off force increases with the amplitude of vibration up to a certain saturation level, which appeared to be frequency dependent. Under the hypothesis of short range adhesion, a lumped mechanical model was derived, which, starting from an independent characterization of the rate-dependent interfacial adhesion, predicted qualitatively and quantitatively the experimental results, without the need of any adjustable parameters.

高频微振动已经被证明对软界面的粘接性能有很大的影响，但是理论预测和实验结果之间的详细比较仍然缺乏。这里，考虑了一个刚性球形压头，挂在软弹簧上，从粘弹性振动基底上卸载的问题。实验测试是通过在高频微振动激励下从软PDMS衬底上卸载硼硅酸盐玻璃透镜来完成的。我们表明，一旦振动开始，接触面积突然增加，卸载过程中，接触面积减少，近似遵循JKR经典模型，但相对于其热力学值，附着功大大增加。我们发现，拉脱力随着振动幅值的增加而增加，直到达到一定的饱和水平，这似乎是频率相关的。在短时黏附假设下，推导了集总力学模型，该模型从独立表征速率依赖的界面黏附出发，在不需要任何可调参数的情况下，对实验结果进行了定性和定量预测。

International Journal of Plasticity

Mechanisms of secondary crack initiation and propagation and closure during the water quenching process in medium-carbon martensitic steel

Hongqing Zheng, Yuchen Yang, Jie Li, Xunwei Zuo, Jianfeng Wan, Yonghua Rong, Nailu Chen

doi:10.1016/j.ijplas.2025.104240

中碳马氏体钢水淬过程中二次裂纹萌生、扩展和闭合机制

A polycrystalline elastic-plastic phase field model is proposed to reveal the mechanisms of secondary crack initiation, propagation and closure during the water quenching process in medium-carbon martensitic steel. The formation of martensite variants during the quenching process is considered in our model. Moreover, this model can account for the influence of the elastic stress and plastic strain generated after the martensitic transformation during the quenching process on the fracture process. The simulation results show that secondary cracks initiate at the grain boundary region near the primary crack due to its induction. Additionally, they can also initiate at multiple locations in the high-angle grain boundary regions far from the primary crack. This occurs due to elastic stress concentration and plastic strain localization in these regions. Then secondary cracks mainly propagate along prior austenite grain boundary areas. The tensile stress on both sides of the crack tip is the main driving force for crack initiation and propagation. As the external loading increases, the stress at the crack tip gradually transitions into compressive stress, ultimately leading to the closure of the crack in the grain boundary regions. More importantly, these propagation paths of secondary cracks are consistent with the experimental results. Compared with intracrystalline defects, grain boundary defects are more likely to induce crack initiation and propagation. Therefore, this model can offer theoretical guidance for solving the issue of water quenching cracking in medium-carbon martensitic steel.

为了揭示中碳马氏体钢在水淬过程中二次裂纹的萌生、扩展和闭合机理，建立了多晶弹塑性相场模型。该模型考虑了淬火过程中马氏体变异体的形成。此外，该模型可以考虑淬火过程中马氏体转变后产生的弹性应力和塑性应变对断裂过程的影响。模拟结果表明，二次裂纹是在主裂纹附近的晶界区域产生的。此外，它们还可以在远离主裂纹的高角度晶界区域的多个位置起裂。这是由于这些区域的弹性应力集中和塑性应变局部化造成的。二次裂纹主要沿奥氏体晶界区扩展。裂纹尖端两侧的拉应力是裂纹萌生和扩展的主要驱动力。随着外加载荷的增加，裂纹尖端的应力逐渐转变为压应力，最终导致晶界区域的裂纹闭合。更重要的是，这些二次裂纹的扩展路径与实验结果一致。与晶内缺陷相比，晶界缺陷更容易引起裂纹的萌生和扩展。因此，该模型可为解决中碳马氏体钢的水淬开裂问题提供理论指导。

Thin-Walled Structures

Topology-optimized multimaterial 4D-printed Fabry–Perot filter with enhanced thermal stability using two-photon polymerization

Johnny Moughames, Julio A. Iglesias Martínez, Gwenn Ulliac, Thibaut Sylvestre, Antoine Barbot, Jean-Claude André, H. Jerry Qi, Frédéric Demoly, Muamer Kadic

doi:10.1016/j.tws.2024.112900

拓扑优化的多材料4d打印法布里-珀罗滤波器，利用双光子聚合增强热稳定性

Tailoring material properties at the microscale is essential for advancing technologies, particularly in the field of 4D printing. The ability to manipulate thermal expansion is particularly critical for opto-mechanical systems, where precise deformation control is required. This paper introduces a novel approach that combines 4D printing with topology optimization to design and fabricate a multimaterial structure capable of mitigating undesired thermal expansion upon heat stimulation. This approach is applied to the development of a microfabricated Fabry–Perot filter as a robust alternative to directly printed cavity-based devices. Employing both approaches enables the determination of material distribution within the internal geometry of the structure, resulting to a temperature-insensitive response while maintaining optical performance. Using two-photon polymerization, the designed structure is 3D-printed with a combination of active and passive materials to achieve a controlled geometry. The final structure demonstrates a minimal change in dimensions under a temperature increase, confirming its ability to counteract thermal expansion effectively. This work showcases the potential of 4D printing and intelligent design strategies for developing devices at the microscale with precise thermal control.

在微观尺度上裁剪材料特性对于先进技术至关重要，特别是在4D打印领域。对于需要精确变形控制的光机械系统来说，控制热膨胀的能力尤为关键。本文介绍了一种新颖的方法，将4D打印与拓扑优化相结合，设计和制造了一种多材料结构，能够在热刺 激时减轻不期望的热膨胀。这种方法被应用于微制造法布里-珀罗滤波器的开发，作为直接印刷腔基器件的鲁棒替代品。采用这两种方法可以确定结构内部几何结构内的材料分布，从而在保持光学性能的同时产生对温度不敏感的响应。利用双光子聚合，设计的结构是3d打印的，结合了主动和被动材料，以实现可控的几何形状。在温度升高的情况下，最终结构的尺寸变化最小，证实了其有效抵消热膨胀的能力。这项工作展示了4D打印和智能设计策略的潜力，用于开发具有精确热控制的微尺度设备。

A time variational method for computing nonlinear normal modes of a thin highly flexible cantilever beam and its experimental evaluation using phase resonance approach

Renjith A R, I R Praveen Krishan

doi:10.1016/j.tws.2025.112910

一种计算高柔性悬臂梁非线性正态模态的时变方法及其用相位共振法的实验评价

This work studies the nonlinear free vibration characteristics of a thin, long, and highly flexible cantilever beam of aspect ratio 644:1 (with length 0.95 m) using the evaluation of nonlinear normal modes. The nonlinear normal modes of the beam are evaluated experimentally from the free decay response after the nonlinear normal mode appropriation using the phase resonance approach satisfying the appropriation criteria. The beam is modeled for computations using gradient-deficient beam elements of Absolute Nodal Coordinate Formulation with bending deformation defined using curvature terms to incorporate the rigid body motions. The degrees of freedom of every element have nonlinear terms associated with them due to the highly coupled system matrices. Therefore, the Time Variational Method is used to extract nonlinear normal modes to ease the requirement of domain transformation for nonlinearity handling, in contrast to other solution techniques. The comparison of results shows that they agree with each other. The first nonlinear normal mode appropriated response shows the presence of super-harmonics both experimentally and computationally. The experiments show no significant softening or hardening behavior of the beam near the first nonlinear normal mode, while the computations show a slight hardening behavior. The appropriate response shows the presence of sub-harmonics and super-harmonics for the second nonlinear normal mode. Both experiments and computations could predict the softening behavior associated with the second nonlinear normal mode. At higher energy levels, there is a transition in the mode shapes for the second nonlinear normal mode, and even a chaotic behavior was observed.

本文研究了长径比为644:1（长度为0.95 m）的细长高柔性悬臂梁的非线性自由振动特性。采用满足占用准则的相位共振方法，从梁的非线性正模占用后的自由衰减响应出发，对梁的非线性正模进行了实验评价。采用绝对节点坐标公式的梯度缺陷梁单元对梁进行建模计算，弯曲变形采用曲率项定义，以纳入刚体运动。由于系统矩阵的高度耦合，每个单元的自由度都带有非线性项。因此，与其他求解技术相比，采用时变方法提取非线性正态模态，减轻了非线性处理对域变换的要求。结果比较表明，两者是一致的。第一个非线性正态响应在实验和计算上都显示了超谐波的存在。实验结果表明，梁在第一非线性正态模态附近没有明显的软化或硬化行为，而计算结果表明梁有轻微的硬化行为。适当的响应表明二阶非线性正态模存在亚谐波和超谐波。实验和计算均能预测与二阶非线性正态模态相关的软化行为。在较高的能级上，二阶非线性正态模态的振型发生跃迁，甚至出现混沌行为。

Damage behavior of (B4C)p/2024Al-T6 composite bumper with different particle volume fractions under hypervelocity impact

Shengpeng Chen, Baojun Pang, Runqiang Chi, Zhenlong Chao, Longtao Jiang, Wuxiong Cao, Tian Luo, Runwei Zhang

doi:10.1016/j.tws.2025.112924

不同颗粒体积分数（B4C）p/2024Al-T6复合材料保险杠超高速碰撞损伤行为

Hypervelocity impact (HVI) of space debris poses significant challenges to spacecraft in orbit, requiring materials that can withstand extreme conditions. In order to investigate the effect of particle content on the damage behavior of the B4C ceramic particle((B4C)p) reinforced 2024Al matrix composite ((B4C)p/2024Al) bumpers during HVI events, lightweight (B4C)p/2024Al-T6 composites with varying volume percentages (30 vol.%, 50 vol.%, and 70 vol.%) were fabricated using pressure infiltration technology. With the help of the two-stage light-gas gun, HVI experiments ranging from 3 to 5 km/s were conducted on Whipple shields with 2024Al(T6) and (B4C)p/2024Al-T6 composite bumpers using 6.35 mm diameter 2017Al(T4) spherical projectiles. Furthermore, the movement process of bumper debris clouds was captured using the Flash X-ray high-speed photography system. The HVIs of the (B4C)p/2024Al-T6 composite bumper were simulated using the microstructure SPH bumper model. Based on the macro and micro damage features observed in experimental bumpers and simulation results, the damage and the hole formation process of (B4C)p/2024Al-T6 composite bumpers induced by the spherical projectile impact were discussed. Increased particle content attenuates the shock wave intensity and diminishes the damage area around the impact point of the composite bumper, reducing the clear hole diameter when the bumper is impacted at relatively close velocities. This increase in particle content also significantly reduces the spall strength of the composite. The adiabatic shear of the aluminum alloy and the fragmentation of B4C particles facilitate crack initiation and propagation within the composites, thereby promoting the hole formation under HVIs. This study demonstrates that particle content can influence the damage behavior of the (B4C)p/2024Al-T6 composite under HVI and thus affecting its impact resistance.

空间碎片的超高速撞击（HVI）对在轨航天器提出了重大挑战，需要能够承受极端条件的材料。为了研究颗粒含量对B4C陶瓷颗粒（(B4C)p）增强2024Al基复合材料（(B4C)p/2024Al）在HVI事件中损伤行为的影响，采用压力渗透技术制备了不同体积百分比（30 vol.%、50 vol.%和70 vol.%）的轻质（B4C）p/2024Al- t6复合材料。在两级光气炮的帮助下，使用6.35 mm直径的2017Al（T4）球形弹丸，在2024Al（T6）和（B4C）p/2024Al-T6复合弹丸的惠普尔盾牌上进行了3 ~ 5 km/s的HVI实验。此外，利用Flash x射线高速摄影系统捕捉了碰撞碎片云的运动过程。采用微结构SPH保险杠模型模拟了（B4C）p/2024Al-T6复合材料保险杠的HVIs。基于实验观察到的减震器宏、微观损伤特征和仿真结果，讨论了（B4C）p/2024Al-T6复合材料减震器在球形弹丸撞击下的损伤和孔洞形成过程。颗粒含量的增加减弱了冲击波强度，减小了复合材料保险杠撞击点周围的损伤面积，减小了保险杠以相对较近的速度撞击时的清孔直径。颗粒含量的增加也显著降低了复合材料的剥落强度。铝合金的绝热剪切和B4C颗粒的破碎有利于复合材料内部裂纹的萌生和扩展，从而促进HVIs作用下孔洞的形成。研究表明，颗粒含量会影响HVI下（B4C）p/2024Al-T6复合材料的损伤行为，从而影响其抗冲击性。

Optimization design of lightweight multi-functional non-local metastructure for broadband sound absorption and electromagnetic dissipation

Zonghan Li, Zhiwen Ren, Huaiyu Dong, Jingtao Li, Yixing Huang, Mingji Chen

doi:10.1016/j.tws.2025.112925

宽带吸声电磁耗散轻量化多功能非局部元结构优化设计

In recent decades, noise pollution and electromagnetic radiation have emerged as the two primary sources of global public hazard. In order to offset the detrimental impact of these pollutants on industrial output and human wellbeing, a metastructure that is capable of simultaneously fulfilling the functions of electromagnetic dissipation and noise absorption is proposed. The non-local lightweight multifunctional metastructure (MFMS), designed through an integrated material-structure-functionality approach, simultaneously enables broadband sound absorption and electromagnetic dissipation. The MFMS achieves an acoustic absorption of approximately 0.8 within the frequency range of 500 Hz to 1,000 Hz. Moreover, the MFMS displays an electromagnetic reflectivity below -10 dB across the majority of the frequency range of 2-40 GHz. The experiment and simulation reveal that the broadband sound absorption mechanism is based on the structural impedance match and parallel operation of multiple resonance modes. In contrast, the mechanism of electromagnetic dissipation is a consequence of the combined influence of structural impedance matching and dielectric loss principles. Overall, an innovative multi-objective optimization method is proposed to design the MFMS.

近几十年来，噪声污染和电磁辐射已成为全球公害的两大主要来源。为了抵消这些污染物对工业产出和人类福祉的有害影响，提出了一种能够同时实现电磁耗散和噪声吸收功能的元结构。非局部轻量化多功能元结构（MFMS）通过综合材料-结构-功能方法设计，同时实现宽带吸声和电磁耗散。在500hz到1000hz的频率范围内，MFMS的吸声率约为0.8。此外，MFMS在2-40 GHz的大部分频率范围内显示出低于-10 dB的电磁反射率。实验和仿真结果表明，宽带吸声机制是基于结构阻抗匹配和多共振模式的并行工作。相反，电磁耗散机制是结构阻抗匹配和介电损耗原理综合影响的结果。总体而言，提出了一种创新的多目标优化设计方法。

Nonlinear functionally graded metamaterials for hydrogen storage and enhanced sustainability under extreme environments

P. Tiwari, S. Naskar, T. Mukhopadhyay

doi:10.1016/j.tws.2024.112901

用于储氢和增强极端环境下可持续性的非线性功能梯度超材料

Functionally graded materials can exhibit remarkable tolerance towards extreme hot or cold environments and chemical surface degradation. This article exploits such properties of functionally graded materials to propose a new class of transversely curved metamaterial architectures with high specific stiffness for operations under extreme surrounding conditions. We envisage the next-generation concept design of hydrogen storage tanks with functionally graded metamaterial core for aerospace and automotive applications. Based on such innovative lattice metamaterial based design of hydrogen storage tanks it is possible to enhance the storage capability in terms of internal pressure and resistance to external loads and impacts. Most importantly the proposed concept would lead to a breakthrough in developing load-bearing energy storage devices. For the metamaterial core, hexagonal bending-dominated unit cell architecture with transversely curved connecting beam-like geometries would ensure the dual functionality of high specific stiffness and energy absorption capability which are mutually exclusive in traditional lattice metamaterials. The functionally graded beams, a periodic network of which constitutes the lattice, are modelled here using 3D degenerated shell elements in a finite element framework. Geometric nonlinearity using Green–Lagrange strain tensor is considered for an accurate analysis. The beam-level nonlinear deformation physics is integrated with the unit cell mechanics following a semi-analytical framework to obtain the effective in-plane and out-of-plane elastic moduli of the metamaterials. The numerical results show that the curved beam lattice metamaterials have significantly enhanced in-plane elastic properties than straight lattices along with a reduced disparity among the in-plane and out-of-plane elastic moduli.

功能梯度材料可以表现出对极热或极冷环境和化学表面降解的显著耐受性。本文利用功能梯度材料的这些特性，提出了一类新的具有高比刚度的横向弯曲超材料结构，用于极端环境条件下的操作。我们设想下一代储氢罐的概念设计，具有功能分级的超材料核心，用于航空航天和汽车应用。基于这种创新的基于晶格超材料的储氢罐设计，可以在内压和抗外载荷和冲击方面提高储氢能力。最重要的是，提出的概念将在开发承重储能装置方面取得突破。对于超材料核心，六角形弯曲主导的单元胞结构与横向弯曲连接的梁状几何结构将确保高比刚度和能量吸收能力的双重功能，这是传统晶格超材料中相互排斥的。功能梯度梁，其周期性网络构成晶格，在这里使用三维退化壳单元在有限元框架中建模。考虑几何非线性的格林-拉格朗日应变张量的精确分析。在半解析框架下，将梁级非线性变形物理学与单元胞力学相结合，得到了超材料的有效面内和面外弹性模量。数值结果表明，弯曲梁点阵材料的面内弹性性能比直点阵材料明显增强，且面内、面外弹性模量差减小。