【新文速递】2025年11月18日固体力学SCI期刊最新文章

今日更新：Composite Structures 6 篇，Composites Part A: Applied Science and Manufacturing 2 篇，Composites Science and Technology 1 篇Composite StructuresEffective vibration suppression of composite honeycomb sandwich panels via embedded vibro-impact nonlinear energy sinksHaiqin Li, Shanqiang Fu, Tian Gao, Xin Liang, Dalian Yu, Qian Dingdoi:10.1016/j.compstruct.2025.119868嵌入振动冲击非线性能量阱对复合材料蜂窝夹层板的有效抑振This study proposes a simple and effective vibration control paradigm through the integration of vibro-impact nonlinear energy sinks (VI-NES) into composite honeycomb structures, addressing the critical challenge of broadband vibration suppression in aerospace and transportation engineering systems. By formulating the coupled dynamics between a honeycomb panel and distributed VI-NES cells as a measure differential complementarity problem, we develop an energy-conserving numerical framework that accurately captures non-s mooth vibro-impact interactions. The ana lysis reveals a dual energy dissipation mechanis m: targeted energy transfer (TET) localizes structural vibration energy into the VI-NES array, while intermodal energy scattering (IMES) induces cascading energy redistribution across eigenmodes of the host panel. In addition, the vibration damping performances of the VI-NES cells for the host panel under harmonic force, broadband white noise, and transient shock excitations are also discussed and optimized using a data-driven approach based on genetic algorithm. It is demonstrated that the effective TET and IMES can be realized by the non-s mooth vibro-impacts, to allow a broadband transfer of vibration energy among the eigenmodes of the host panel and the VI-NES, revealing a potential pathway for effective broadband vibration reduction in lightweight honeycomb structures.本研究通过将振动冲击非线性能量槽（VI-NES）集成到复合材料蜂窝结构中，提出了一种简单有效的振动控制范式，解决了航空航天和交通运输工程系统中宽带振动抑制的关键挑战。通过将蜂窝板和分布式VI-NES单元之间的耦合动力学表述为测量差分互补问题，我们开发了一个节能的数值框架，可以准确捕获非光滑振动碰撞相互作用。分析揭示了一种双重能量耗散机制：定向能量传递（TET）将结构振动能量定位到VI-NES阵列中，而多模态能量散射（IMES）则诱导了主面板上各特征模态间的级联能量再分配。此外，还讨论了VI-NES单元在谐波力、宽带白噪声和瞬态冲击激励下的主机面板减振性能，并采用基于遗传算法的数据驱动方法对其进行了优化。研究表明，有效的TET和IMES可以通过非光滑的振动冲击来实现，从而允许振动能量在主面板和VI-NES的特征模态之间进行宽带传递，揭示了轻质蜂窝结构有效的宽带减振的潜在途径。Prediction of anisotropic damage evolution in nacre-inspired composites by using a data-driven nonlinear homogenization approachDomenico Ammendolea, Fabrizio Greco, Lorenzo Leonetti, Arturo Pascuzzodoi:10.1016/j.compstruct.2025.119869基于数据驱动的非线性均质化方法预测碳纤维复合材料各向异性损伤演化This paper presents a computationally efficient data-driven multiscale strategy for accurately predicting failure in arbitrary 2D periodically microstructured materials. This strategy relies on a surrogate model specifically designed to represent macroscale anisotropic damage evolution under general loading conditions. This surrogate model is developed in two phases. In the first phase, named as off-line phase, the discrete evolution of the overall secant modu li, here treated as damage variables, is derived from several nonlinear micromechanical an alyses conducted on the same Repeating Unit Cell (RUC) along different monotonic proportional loading paths. To derive a continuous evolution law, a deep neural network (DNN) is employed to fit all the resulting micromechanical data. Instead, in the second phase, called on-line phase, a complete surrogate model is developed by combining the previous data-driven evolution law with an ad-hoc stress update strategy to correctly enforce damage irreversibility during elastic unloading. The present numerical strategy is applied to predict the complex microscale failure mechanis ms in nacre-inspired staggered composites subjected to diverse macrostrain histories, including both proportional and nonproportional paths. The accuracy of the data-driven multiscale results obtained here is evaluated by comparing them to those arising from a direct nonlinear micromechanical approach.本文提出了一种计算效率高的数据驱动多尺度策略，用于精确预测任意二维周期性微结构材料的失效。该策略依赖于专门设计的替代模型来表示一般加载条件下宏观各向异性损伤演化。该代理模型分为两个阶段开发。在第一阶段，即离线阶段，通过对相同的重复单元胞（RUC）沿着不同的单调比例加载路径进行多次非线性微力学分析，得出了整体割线模量（此处作为损伤变量）的离散演化。为了得到连续的演化规律，采用深度神经网络（DNN）对得到的所有微力学数据进行拟合。相反，在第二阶段（称为在线阶段），通过将先前的数据驱动演化规律与临时应力更新策略相结合，开发出完整的代理模型，以正确执行弹性卸载期间的损伤不可逆性。本文应用该数值策略预测了不同大应变历史（包括比例路径和非比例路径）下珠蕊启发交错复合材料的复杂微尺度破坏机制。通过将数据驱动的多尺度结果与直接非线性微力学方法的结果进行比较，评估了数据驱动的多尺度结果的准确性。Strip-loop segmented CFRP cable system: development and mechanical performanceGuozhen Ding, Peng Feng, Li Dong, Pengcheng Ai, Chao Wudoi:10.1016/j.compstruct.2025.119860带状环段CFRP索系：发展与力学性能The use of carbon fibre reinforced polymer (CFRP) cables has emerged as a promising solution in large-scale civil engineering projects, owing to their superior strength-to-weight ratio and corrosion resistance compared to conventional steel cables. However, the application of CFRP cables is limited by challenges in anchorage design, which is crucial for ensuring the safety and performance of these structures. This paper presents a detailed study of a strip-loop segmented CFRP cable system, designed for longer spans and allowing for prefabricated components to be assembled on-site. Both experimental tests and finite element ana lysis were conducted to evaluate the mechanical behaviour, anchor efficiency, and failure mechanis m of the system. The experimental results indicated that the improved anchorage design significantly enhances load-bearing capacity and anchor efficiency, achieving up to 97.7% efficiency. Interfacial failure between the layers of the CFRP strip-loop anchorage was identified as the primary reason for reduced load-bearing capacity. The modified design reduced interface damage, thereby improving the load-bearing capacity of the anchorage and resulting in the desirable failure mechanis m of cable body rupture. The findings demonstrate the effectiveness of the strip-loop segmented CFRP cable system in overcoming traditional anchorage limitations, thereby providing a promising alternative for future infrastructure applications.碳纤维增强聚合物（CFRP）电缆与传统钢索相比，具有优越的强度重量比和耐腐蚀性，因此在大型土木工程项目中已成为一种很有前途的解决方案。然而，锚固设计的挑战限制了CFRP索的应用，而锚固设计对于保证这些结构的安全和性能至关重要。本文介绍了带状环分段CFRP电缆系统的详细研究，该系统设计用于更长的跨度，并允许预制组件在现场组装。通过试验和有限元分析，对系统的力学性能、锚固效率和破坏机制进行了评估。试验结果表明，改进后的锚固设计显著提高了锚固承载力和锚固效率，锚固效率可达97.7%。CFRP条环锚固层间界面破坏是其承载能力下降的主要原因。修改后的设计减少了界面损伤，从而提高了锚固的承载能力，形成了理想的索体断裂破坏机制。研究结果表明，带状环分段CFRP索系统在克服传统锚固限制方面的有效性，从而为未来的基础设施应用提供了一个有希望的替代方案。STF intercalated cork laminates under oblique impact conditionsErsin Eroğlu, Selim Gürgen, Fábio A.O. Fernandesdoi:10.1016/j.compstruct.2025.119861斜冲击条件下的STF嵌入软木层压板This study investigates the impact behavior of shear thickening fluid (STF)-intercalated cork laminates under oblique impact conditions. Cork, a sustainable and lightweight material, has gained interest in protective applications due to its energy absorption capabilities. The integration of STF enhances impact resistance by exploiting its shear-thickening properties, providing dynamic stiffening upon loading. The experimental an alysis involved drop-weight impact tests conducted at various velocities and angles, evaluating force trans mission and energy dissipation. Rheological characterization of the STF confirmed its shear-thickening transition, with a critical shear rate threshold triggering a viscosity surge. The results indicate that STF significantly reduces backface impact forces, with enhanced protection observed at oblique angles exceeding 30°. The interaction between STF and cork structures facilitates improved energy dissipation through adhesive interactions and shear-induced stiffening. Given the recent updates to helmet safety standards such as ECE 22.06 and EN1078, which now include oblique impact testing to address rotational accelerations affecting the brain, the need for advanced protective materials has become more pressing. This study demonstrates the potential of STF-integrated cork composites for advanced protective applications, such as personal protective equipment.本文研究了剪切增稠流体（STF）嵌入软木层合板在斜冲击条件下的冲击行为。软木是一种可持续的轻质材料，由于其吸收能量的能力，在防护应用中引起了人们的兴趣。STF的集成通过利用其剪切增厚特性来增强抗冲击性，在加载时提供动态刚度。实验分析包括在不同速度和角度下进行的落锤冲击试验，评估力传递和能量耗散。STF的流变特性证实了其剪切-增稠转变，临界剪切速率阈值触发粘度激增。结果表明，STF显著降低了背面的冲击力，在斜角超过30°时，保护效果更明显。STF和软木结构之间的相互作用有助于通过粘接相互作用和剪切诱导的加筋改善能量耗散。鉴于最近更新的头盔安全标准，如ECE 22.06和EN1078，现在包括斜冲击测试，以解决旋转加速度对大脑的影响，对先进防护材料的需求变得更加迫切。这项研究证明了stf集成软木复合材料在先进防护应用方面的潜力，例如个人防护装备。A leaf venation-inspired star-shaped hybrid honeycomb with ultra-high load-bearing and energy absorptionLianhua Ma, Zhenyue Liu, Youjiang Cui, Biao Wangdoi:10.1016/j.compstruct.2025.119862叶脉启发的星形混合蜂窝，具有超高承重和能量吸收Traditional star-shaped honeycomb (TSSH) exhibits a negative Poisson’s ratio (NPR) and high shear resistance due to its re-entrant microstructures, while the limited load-bearing and energy absorption capacities impedes its wide development. Inspired by the arrowhead-shaped leaf venation microstructure, an enhanced star-shaped hybrid honeycomb (ESSHH) with tunable Poisson’s ratio is proposed by incorporating different arrow-shaped supporting ribs into the TSSH. Then, the TSSH and ESSHH structural models were constructed through 3D-printed technology, and the quasi-static compressive mechanical performance and deformation mechanis ms of the 3D-printed TSSH and ESSHH structural models were explored using experimental methods and finite element simulation. The investigation results show that, compared to the TSSH, the ESSHH exhibits notable improvements in both relative elastic modulus and specific energy absorption (SEA). As the structural length l2 increases, the stiffness and SEA of the ESSHH initially rise and subsequently decline, which revealing an optimal design parameter. The ESSHH exhibits dramatic improvement over the TSSH, with increases of approximately 700% in relative elastic modulus and 500% in specific energy absorption. These enhancements highlight its significant potential for structural protection and impact mitigation in civil and infrastructure engineering, owing to its enhanced stiffness and superior energy absorption capacities.传统的星形蜂窝材料由于其重入式的微观结构，具有负泊松比（NPR）和较高的抗剪性能，但有限的承载能力和吸能能力阻碍了其广泛发展。受箭头形叶脉结构的启发，通过在TSSH中加入不同的箭头形支撑肋，提出了一种具有可调泊松比的增强星形混合蜂窝（ESSHH）。然后，通过3d打印技术构建TSSH和ESSHH结构模型，并通过实验方法和有限元模拟探索3d打印TSSH和ESSHH结构模型的准静态压缩力学性能和变形机理。研究结果表明，与TSSH相比，ESSHH在相对弹性模量和比能量吸收（SEA）方面都有显著改善。结构长度l2增大时，ESSHH的刚度和SEA先上升后下降，从而得到最优设计参数。与TSSH相比，ESSHH表现出显著的改善，其相对弹性模量增加了约700%，比能吸收增加了约500%。这些改进突出了它在土木和基础设施工程中保护结构和减轻冲击方面的巨大潜力，因为它的刚度增强了，吸收能量的能力更强。Investigation on the forced assembly deformation and damage behavior of riveted-repair composite joint with delamination under drilling geometric deviationShiqing Mi, Junshan Hu, Fusen Hou, Xi Wang, Liangxiang Wang, Wei Tiandoi:10.1016/j.compstruct.2025.119870钻削几何偏差下带分层的铆接-修补复合材料接头强制装配变形及损伤行为研究In this study, two types of rivets, solid and blind rivets, are employed to repair delaminated composite components with varying curvatures. The forced assembly behavior of these riveted joints under drilling depth deviations and angular misalignments is systematically investigated through a combination of finite element an alysis and experimental testing. The initiation and evolution of damage within the composite joints are also characterized. A three-dimensional elastoplastic damage constitutive model is developed, accounting for anisotropic material behavior, nonlinear response, and progressive damage. Based on this model, plastic deformation, multiphase damage, and residual stresses in the riveted composite joints are predicted and validated experimentally. The results demonstrate that the numerical model accurately captures the forced assembly process and microscale damage evolution around the rivet hole. In solid-riveted joints, plastic deformation propagates in a V-shaped pattern along the rivet axis, whereas in blind-riveted joints, it forms a “pine tree” distribution around the hole. The drilling depth deviation enhances the axial constraint stiffness of the rivet fasteners but also exacerbates localized damage in the countersink region. Angular misalignment produces asymmetric stress distribution across the joint, promoting unidirectional delamination propagation.本研究采用实心铆钉和盲铆钉两种类型的铆钉来修复具有不同曲率的分层复合材料部件。通过有限元分析和实验测试相结合的方法，系统地研究了这些铆接接头在钻孔深度偏差和角度失调下的强迫装配行为。分析了复合材料接头内部损伤的发生和演化过程。建立了考虑材料各向异性、非线性响应和渐进损伤的三维弹塑性损伤本构模型。基于该模型对复合材料铆接接头的塑性变形、多相损伤和残余应力进行了预测，并进行了实验验证。结果表明，该数值模型准确地捕捉了铆钉孔周围的强制装配过程和微尺度损伤演化过程。在实体铆接接头中，塑性变形沿铆钉轴呈v形传播，而在盲铆接接头中，塑性变形在孔周围呈“松树”状分布。钻孔深度偏差提高了铆钉紧固件的轴向约束刚度，但也加剧了埋头区的局部损伤。角度不对中导致节理上应力分布不对称，促进单向分层传播。Composites Part A: Applied Science and ManufacturingDouble-gradient compression-resistant nanocarbon film for superior 3D thermal management and EMI shieldingXiaohui Wang, Zhengpeng Yang, Dapeng Liu, Li Chen, Xiangyu Li, Zhichao Liu, Fuping Wang, Tongtong Qin, Huili Fu, Zhenzhong Yong, Yongyi Zhangdoi:10.1016/j.compositesa.2025.109447双梯度抗压缩纳米碳薄膜优越的3D热管理和电磁干扰屏蔽Developing nanocarbon-based materials with 3D thermal management and high electromagnetic interference shielding efficiency (EMI SE) is pivotal but challenging to address overheating and EMI of integrated electronics. Herein, a novel double-gradient nanocarbon film (DGNF) was fabricated using synchronous centrifugal pouring and high-temperature heat treatment. In the resulting DGNF, continuous composition variation occurs to the gradient direction, lamellar graphene layer with tiny interlayer space acts as supporting scaffold, and single-walled carbon nanotube (SWNT) and s mall-size graphene (SG) are welded between the graphene layers. These unique structural features endow the DGNF with superior mechanical strength, cyclic compression performance (a high stress retention rate of 89 % after 100 loading cycles at a strain of 60 %) and environmental stability. Impressively, 3D thermal conductivity can be available, with in-plane and out-plane thermal conductivities reaching as high as 216 and 3.5 W m−1 K−1, respectively. Furthermore, the as-fabricated DGNF exhibits an outstanding EMI SE over 101 dB in the X-band and a normalized specific SE (SSE/t) of 5840 dB cm−2 g−1. This study provides favorable guidelines for advancing nanocarbon-based films toward extreme demands in integrated circuit packaging and high-efficiency thermal management systems.开发具有三维热管理和高电磁干扰屏蔽效率（EMI SE）的纳米碳基材料是解决集成电子产品过热和电磁干扰的关键，但也具有挑战性。本文采用同步离心浇注和高温热处理的方法制备了一种新型双梯度纳米碳膜。在DGNF中，梯度方向上的成分发生连续变化，具有微小层间空间的层状石墨烯层作为支撑支架，单壁碳纳米管（SWNT）和小尺寸石墨烯（SG）在石墨烯层之间焊接。这些独特的结构特征赋予DGNF优越的机械强度、循环压缩性能（在60 %的应变下，100次加载循环后应力保持率高达89 %）和环境稳定性。令人印象深刻的是，可以获得三维导热系数，面内和面外导热系数分别高达216和3.5 W m−1 K−1。此外，制备的DGNF在x波段的EMI SE超过101 dB，归一化比SE （SSE/t）为5840 dB cm−2 g−1。这项研究为推进纳米碳基薄膜在集成电路封装和高效热管理系统中的极端需求提供了有利的指导。Plant transpiration-inspired multiscale hierarchical fabric coordinate water transport for enhanced solar-driven desalination performanceYuqiu Guo, Jiawei Luo, Ze Lv, Hongbin Chai, Linping Zhang, Yi Zhong, Hong Xu, Zhiping Maodoi:10.1016/j.compositesa.2025.109449 植物蒸腾启发的多尺度分层织物协调水运，以增强太阳能驱动的海水淡化性能Solar-driven water vapor extraction from liquid water holds promise for tackling freshwater shortages, yet the over-low evaporation rate limits its practical application due to high evaporation enthalpy of water upon natural conditions. Herein, inspired by plant transpiration, we designed a multiscale hierarchical gradient pore structure evaporator by layer-by-layer self-assembly of poly(pyrrole) and poly(dopamine)-coated carbon felt with CNW/PAN/P(VDF-TrFE) multilayer fabrics, which process unidirectional water transport properties. Benefiting from the synergy between micro-nano structure and the interface effect, not only the evaporation enthalpy of the system can dramatically decrease whilst maintaining a significant water/air interface, but also the Laplace pressure formed in the gradient pores can effectively regulate water transport, thereby preventing excessive accumulation of water at the evaporation interface during evaporation and minimizing heat loss. Hence, the evaporator achieves high evaporation rates of 1.97 kg m−2h−1 for pure water under 1 sun, and 1.64–1.80 kg m−2h−1 in 10 wt% NaCl solution and real seawater. A high-purity water collection rate of 8.15 kg m−2 d−1 is attained outdoors in spring. This work provides a scalable route to high-performance interfacial evaporators for alleviating water scarcity.太阳能从液态水中提取水蒸气有望解决淡水短缺问题，但由于水在自然条件下的高蒸发焓，蒸发速率过低限制了其实际应用。本文以植物蒸腾作用为灵感，采用CNW/PAN/P（VDF-TrFE）多层织物，将聚吡咯（pyrorole）和聚多巴胺（dopamine）涂层碳毡逐层自组装，设计了一种多尺度分层梯度孔结构蒸发器。得益于微纳结构和界面效应的协同作用，不仅可以大幅降低系统的蒸发焓，同时保持显著的水/气界面，而且在梯度孔隙中形成的拉普拉斯压力可以有效调节水分的输运，从而在蒸发过程中防止水分在蒸发界面过度积聚，最大限度地减少热损失。因此，蒸发器在1个太阳下的纯水蒸发率为1.97 kg m−2h−1，在10 wt% NaCl溶液和真实海水中蒸发率为1.64-1.80 kg m−2h−1。春季室外的高纯水收集率为8.15 kg m−2 d−1。这项工作为缓解水资源短缺的高性能界面蒸发器提供了一条可扩展的途径。Composites Science and TechnologyAchieving high temperature energy storage performance in PVDF through synergizing cross-linking and BNNs doping strategiesQiuying Zhao, Jiachen Shi, Lu Yang, Ming Zhang, Hongli Ji, Jinhao Qiudoi:10.1016/j.compscitech.2025.111455 通过协同交联和bnn掺杂策略实现PVDF的高温储能性能The growing demand for electrostatic capacitors in extreme conditions highlights the urgent need for polymer dielectric films with high breakdown strength (Eb), high discharge energy density (Ue), and outstanding high-temperature stability. Herein, a high-temperature stable capacitive composite film based on poly(vinylidene fluoride-co-chlorotrifluoroethylene) (P(VDF-CTFE)) is proposed by synergizing cross-linking and doping strategies. Specifically, P(VDF-CTFE) is engineered to form a cross-linking network and subsequently doped with surface-modified BNNs (BNNs-OH). By harnessing the synergistic effect between cross-linking and BNNs-OH doping, one can effectively restrict molecular mobility, disrupt the growth of crystalline domains, and inhibit the propagation of electrical trees and defects. This dual modification not only enhances the structural integrity of the polymer matrix but also improves its breakdown strength, high-temperature stability, and energy storage capabilities. The resultant composite film delivers a high discharge energy density up to 14.1 Jcm-3 at 25 °C and 13.59 Jcm-3 at 150 °C, validating its distinguished temperature stability over a wide temperature range. This study presents a facile strategy to develop advanced polymer dielectric films for harsh operating environments where both performance and durability are crucial.极端条件下对静电电容器的需求日益增长，迫切需要具有高击穿强度(Eb)、放电能量密度高(UE)、高温稳定性好。本文采用交联和掺杂的协同策略，制备了一种基于聚偏氟乙烯-共氯三氟乙烯（P(VDF-CTFE)）的高温稳定电容性复合薄膜。具体来说，P（VDF-CTFE）被设计成形成交联网络，随后掺杂表面修饰的BNNs （BNNs- oh）。通过利用交联和BNNs-OH掺杂之间的协同效应，可以有效地限制分子迁移率，破坏晶体结构域的生长，抑制电树和缺陷的传播。这种双重改性不仅增强了聚合物基体的结构完整性，而且提高了其击穿强度、高温稳定性和储能能力。合成的复合薄膜在25°C和150°C下的放电能量密度分别高达14.1 Jcm-3和13.59 Jcm-3，验证了其在宽温度范围内的优异温度稳定性。这项研究提出了一种简单的策略来开发先进的聚合物介电薄膜，用于性能和耐用性都至关重要的恶劣操作环境。来源：复合材料力学仿真Composites FEM