【新文速递】2025年11月6日复合材料SCI期刊最新文章
今日更新：Composite Structures 4 篇，Composites Part A: Applied Science and Manufacturing 1 篇，Composites Part B: Engineering 1 篇
Composite Structures
Navigating the degree of multistability and snap-through in piezoelectrically actuated series-connected unsymmetrical laminates
P.R. Manu, P.M. Anilkumar, Danish Bashir, Ayan Haldar, B.N. Rao
doi:10.1016/j.compstruct.2025.119809
压电驱动串联非对称层压板的多稳定性和通断度导航
Adaptive morphing structures using multistable laminates have significant potential application due to their ability to provide continuous and s mooth shape transitions through multiple equilibrium configurations. The simplest candidate for morphing structures is the bistable cured shapes of unsymmetrical laminates, where the residual thermal stresses generated during the curing process result in two distinct equilibrium configurations. However, they often do not meet the requirements for continuous shape transition. To increase the degree of morphing, one option could be to connect multiple bistable unsymmetrical laminates in series generating multistability, which has been explored in the literature. However, when making series connections, the connecting regions often influence the degree of multistability, and triggering snap-through becomes more complex as the snap-through energy needs to be applied selectively to trigger selective shape transitions. In this study, an efficient semi-an alytical and finite element frameworks are employed to understand the behavior of series-connected multistable laminates, where the snap-through is triggered using surface-bonded piezoelectric macro fiber composite (MFC) actuators. Since the geometry involves multiple laminates, several MFC patches are required to trigger the snap-through. Such a design needs to be investigated in detail, as multiple patches can further reduce the degree of multistability. In the quest of finding an efficient laminate-MFC assembly for the preliminary designs, systematic parametric studies have been performed to determine the optimal size and location of the MFC actuators. In the later stage of the parametric study, the opportunity of tailoring fiber alignments through the option of variable stiffness laminates is explored to identify a best suitable multistable laminate-MFC assembly. During each step of the parametric study, detailed comparisons of out-of-plane displacements and snap-through voltages of each stable shape have been reported to identify the optimum configurations. The study will contribute to the development of active multistable structures across a wide range of morphing applications.
使用多稳定层压板的自适应变形结构具有重要的潜在应用价值，因为它们能够通过多种平衡配置提供连续和平滑的形状转换。最简单的变形结构候选者是不对称层压板的双稳态固化形状，其中固化过程中产生的残余热应力导致两种不同的平衡构型。然而，它们往往不能满足连续形状转换的要求。为了增加变形程度，一种选择是将多个双稳态非对称层板串联起来产生多稳定性，这在文献中已经有过探讨。然而，在进行串联连接时，连接区域往往会影响多稳定性的程度，并且触发通卡变得更加复杂，因为需要有选择地施加通卡能量来触发选择性的形状转变。在本研究中，采用有效的半解析和有限元框架来理解串联多稳定层压板的行为，其中使用表面粘结压电宏纤维复合材料（MFC）致动器触发卡通。由于几何结构涉及多个层压板，因此需要几个MFC补丁来触发snap-through。这样的设计需要详细研究，因为多个贴片会进一步降低多稳定性的程度。为了寻找一种高效的层叠MFC组件进行初步设计，进行了系统的参数研究，以确定MFC执行器的最佳尺寸和位置。在参数化研究的后期，探讨了通过可变刚度层压板的选择来定制纤维排列的机会，以确定最合适的多稳态层压板- mfc组件。在参数化研究的每个步骤中，详细比较了每种稳定形状的面外位移和通断电压，以确定最佳配置。该研究将有助于在广泛的变形应用中发展主动多稳定结构。
Experimental and numerical multiscale investigation of thermo- mechanical-acoustic coupling in CNTs/CF composite corrugated structures
Haitao Zhao, Li Tian, Wu Xu, Xiaochu Gao, Mingqing Yuan, Ji’an Chen
doi:10.1016/j.compstruct.2025.119813
碳纳米管/CF复合波纹结构热-力-声耦合的多尺度实验与数值研究
To elucidate the acoustic insulation characteristics of CNTs/CF reinforced composite corrugated sandwich structures, a multiscale modeling framework has been articulated for the prognostication of sound trans mission loss across nano, micro, meso, and macro scales. This model is anchored in the locally-exact homogenization theory (LEHT), classical laminate theory, and finite element methodologies. Subsequently, the composite corrugated sandwich panels were manufactured through compression molding and solidification techniques. Modal an alysis, employing the impact hammer method, and sound insulation assess ments, utilizing the single reverberation chamber method, were executed on these panels. A comparative an alysis between the simulation outcomes predicated on the proposed multiscale model and empirical data demonstrated a substantial level of concordance. Furthermore, the model was utilized to discourse on the influences of CNTs’ volume fraction, carbon fiber volume fraction, laminate layup, and core material on the acoustic insulation of composite corrugated sandwich panels. It is noteworthy that the study delved into the effects of temperature gradients on acoustic insulation properties within the context of coupled thermal/mechanical/acoustic fields. This research bears significant implications for the development and design of composite corrugated sandwich structures, particularly for train body structures, thus fostering the utilization of CNTs/CF reinforced composites in such sandwich configurations.
为了阐明CNTs/CF增强复合材料波纹夹层结构的隔声特性，我们建立了一个多尺度建模框架，用于预测纳米、微观、中观和宏观尺度上的声传输损失。该模型是锚定在局部精确均质理论（LEHT），经典层压理论，和有限元方法。随后，通过压缩成型和凝固技术制造复合波纹夹芯板。采用冲击锤法进行模态分析，采用单混响室法进行隔声评估。基于所提出的多尺度模型的模拟结果与经验数据之间的比较分析表明了相当程度的一致性。此外，利用该模型讨论了CNTs体积分数、碳纤维体积分数、层压板铺层和芯材对复合波纹夹层板隔声性能的影响。值得注意的是，该研究深入研究了热/力学/声场耦合背景下温度梯度对隔声性能的影响。本研究对复合材料波纹夹层结构的开发和设计，特别是列车车身结构的开发和设计具有重要意义，从而促进了CNTs/CF增强复合材料在这种夹层结构中的应用。
Wrinkling prediction and controlling for the hot stamping of plain weave CF/PEEK prepreg in the molten state
Zhihui Jiao, Yi Wang, Haohai Li, Lihua Du, Yanhong Mu, Jinghua Zheng, Yong Li
doi:10.1016/j.compstruct.2025.119817
平织CF/PEEK预浸料在熔融状态下热冲压的起皱预测与控制
This paper has developed an efficient simulation method to accurately predict the wrinkling behaviour during hot stamping of thermoplastic composites (CF/PEEK) in the molten state, and a fixed gap method has been explored to control the development of wrinkling for forming complex structures. The simulation of wrinkling characteristics in bias-extension tests is employed to determine the equivalent bending stiffness of the prepregs, which decreases with increasing temperatures (0.3, 0.23 and 0.18 N/mm for 360, 380 and 400 ℃, respectively). In addition, friction tests to characterise the interfacial friction coefficient have also been performed. Based on the developed model, both experiments and simulations have been performed for the hot stamping of hemispherical components. The instability mechanis m in the flange region during forming has been identified, and the effects of the fixed gap concept on wrinkling control have been further discussed and quantified. A fixed gap of 0.3 mm is recommended to achieve a wrinkle-free hemispherical component through hot stamping at 380 ℃ with the prepreg thickness of 0.25 mm. The method developed in this study could provide useful guidance for wrinkling prediction and control for the forming of thermoplastic composite structures.
本文建立了一种有效的模拟方法来准确预测热塑性复合材料（CF/PEEK）在熔融状态下热冲压过程中的起皱行为，并探索了一种固定间隙法来控制复杂结构成形过程中起皱的发展。通过模拟偏置拉伸试验中的起皱特性，确定了预浸料的等效抗弯刚度随温度升高而减小（360、380和400 ℃时分别为0.3、0.23和0.18 N/mm）。此外，还进行了表征界面摩擦系数的摩擦试验。基于所建立的模型，对半球形零件的热冲压过程进行了实验和仿真。确定了成形过程中法兰区域的失稳机理，并进一步讨论和量化了固定间隙概念对起皱控制的影响。在380 ℃温度下，预浸料厚度为0.25 mm，建议采用0.3 mm的固定间隙来实现无起皱的半球形构件。该方法可为热塑性复合材料结构成形的起皱预测和控制提供有益的指导。
Predictive modeling of impact dissipation in hybrid composites: Role of strain gradient and viscoelastic coupling
Chaonan Cong, Lechuan Zhang, Peixing Jia, Wenqing Zhu, Junjie Liu, Zhongliang Yu, Yueguang Wei, Xiaoding Wei
doi:10.1016/j.compstruct.2025.119821
混杂复合材料冲击耗散的预测建模：应变梯度和粘弹性耦合的作用
A trans-scale hybrid shear-lag model is developed to predict the impact energy absorption in hybrid fiber composites. The model incorporates strain-gradient elasticity and matrix viscoelasticity, enabling it to capture size effects and time-dependent stress transfer under dynamic loading. Ana lytical solutions are derived for shear stress evolution along dissimilar fiber interfaces subjected to impulsive loads. The model is applied to Carbon/S-glass, Carbon/Kevlar, and Kevlar/S-glass systems, and validated against drop-weight impact experiments. Results show that the proposed model accurately predicts energy dissipation and deformation trends across various hybrid configurations, outperforming classical shear-lag models that neglect scale effects and viscosity. The influence of fiber sequence, volume ratio, and interfacial architecture is systematically quantified, providing insights into optimal design strategies for enhanced impact resistance. This work offers a physics-based and computationally efficient tool for ana lyzing and designing hybrid composite structures subject to low-velocity impact.
建立了跨尺度混杂剪切滞后模型来预测混杂纤维复合材料的冲击能吸收。该模型结合了应变梯度弹性和矩阵粘弹性，使其能够捕捉动态加载下的尺寸效应和随时间变化的应力传递。导出了脉冲载荷作用下不同纤维界面剪切应力演化的解析解。该模型应用于碳/ s -玻璃、碳/凯夫拉和凯夫拉/ s -玻璃体系，并通过落锤冲击实验进行了验证。结果表明，该模型准确地预测了各种混合结构的能量耗散和变形趋势，优于忽略尺度效应和粘度的经典剪切滞后模型。系统地量化了纤维序列、体积比和界面结构的影响，为增强抗冲击性的最佳设计策略提供了见解。这项工作为分析和设计低速冲击下的混合复合材料结构提供了一种基于物理和计算效率的工具。
Composites Part A: Applied Science and Manufacturing
ACTS-3D: Advanced continuous tow shearing for manufacturing of defect-free 3D complex composite parts
Edwin Rosario Gabriel, Michelle Rautmann, Byung Chul Kim
doi:10.1016/j.compositesa.2025.109413
ACTS-3D：先进的连续剪切，用于制造无缺陷的3D复杂复合材料零件
Continuous Tow Shearing (CTS) is a novel fibre steering process developed to overcome the inherent limitations of Automatic Fibre Placement (AFP), which relies on in-plane bending deformation of the tow in fibre steering process. Unlike AFP, CTS utilises in-plane shear deformation of the tow, and it has proven effective in eliminating fibre steering-induced defects on doubly-curved surfaces. However, challenges remain with more complex layups that cannot be perfectly tessellated using finite-width tows. This work introduces an advanced CTS process for three-dimensional complex geometries (ACTS-3D), incorporating a novel path planning and head control algorithm, along with an on-the-fly tow-width control (TWiC) mechanis m. The path planning algorithm tessellates the surface using an improved pin-jointed strip (PJS) model that discretises the geometry of the individual variable-width tow. The local orientations of the CTS head, its nip points, and the local tow widths along the layup path are computed based on the spatial arrangements and lengths of the tow width elements within the PJS. To validate the feasibility of ACTS-3D process, a CTS prototype head with an integrated TWiC device was mounted on an industrial robot, producing a multi-layered fibre-steered preform on a doubly curved tool surface. Visual inspection and laser surface scans of the preform confirmed the potential of ACTS-3D for defect-free manufacturing of fibre-steered composite parts with complex geometries, by synchronously utilising the new head control and tow-width control.
连续剪切（CTS）是一种新型的纤维转向工艺，它克服了纤维自动放置（AFP）在纤维转向过程中依赖于纤维的面内弯曲变形的固有局限性。与AFP不同，CTS利用纤维束的面内剪切变形，并且已被证明在消除双曲面上纤维转向引起的缺陷方面是有效的。然而，挑战仍然存在于更复杂的层，无法使用有限宽度的束来完美地镶嵌。 这项工作介绍了三维复杂几何（ACTS-3D）的先进CTS工艺，结合了一种新的路径规划和头部控制算法，以及动态拖宽控制（TWiC）机制。路径规划算法使用改进的pin- jointstrip （PJS）模型对曲面进行镶嵌，该模型离散了单个变宽度拖束的几何形状。CTS头部的局部方向、其夹击点和沿铺放路径的局部拖宽度是基于PJS内拖宽度元素的空间排列和长度来计算的。为了验证ACTS-3D工艺的可行性，将集成TWiC装置的CTS原型头安装在工业机器人上，在双曲面刀具表面上生产了多层纤维导向预制体。预制体的目视检查和激光表面扫描证实了ACTS-3D的潜力，通过同步利用新的头部控制和拖宽控制，可以无缺陷地制造具有复杂几何形状的纤维导向复合材料部件。
Composites Part B: Engineering
S mart nested origami-inspired detachable modular structures with tunable stiffness for multiphysics reconfiguration
Ji Zhang, Jintong Chen, Shuai Liu, Changguo Wang
doi:10.1016/j.composites b.2025.113164
智能嵌套折纸启发可拆卸的模块化结构与可调的刚度多物理场重构
This study presents innovative architected metastructures that integrate nested origami with traditional lattice structures, addressing the limitations of fixed geometry and functionality in conventional lattice designs. Lattice structures exhibit high performance and lightweight design, enabling precise control of macroscopic physical properties through well-defined unit cell topologies. However, their post-manufacturing geometry and functionality are typically fixed, limiting adaptability in dynamic environments. The proposed novel metastructures achieve secondary expansion functions, termed "One-Double," through modular design and reconfigurable mechanis ms. The structures' reconfigurability, detachable modularity, and tunable mechanical properties mimic the “metamorphosis” observed in biological systems, where organis ms undergo significant morphological transformations. Building upon this, we propose three coupling-based reversible reconfiguration methods to enable dynamic geometry switching between different unit configurations. Experimental, theoretical, and simulation results demonstrate that these metastructures, due to their multifunctionality, show strong adaptability for satellite antennas and can guide fluid flow through reconfiguration, optimizing flow paths. This design approach paves the way for achieving complex multifunctionality across various domains, with significant potential for applications in dynamic adaptation, intelligent responsiveness, and functional integration.
本研究提出了创新的建筑元结构，将嵌套折纸与传统的晶格结构相结合，解决了传统晶格设计中固定几何形状和功能的局限性。晶格结构具有高性能和轻量化设计，通过定义良好的单元胞拓扑结构可以精确控制宏观物理特性。然而，它们的制造后几何形状和功能通常是固定的，限制了在动态环境中的适应性。提出的新型元结构通过模块化设计和可重构机制实现二级扩展功能，称为“One-Double”。这种结构的可重构性、可拆卸的模块化和可调节的机械性能模拟了在生物系统中观察到的“变形”，在生物系统中，生物体经历了显著的形态转变。在此基础上，我们提出了三种基于耦合的可逆重构方法，以实现不同单元配置之间的动态几何切换。实验、理论和仿真结果表明，这些元结构由于具有多功能性，对卫星天线具有很强的适应性，可以通过重构和优化流路来引导流体流动。这种设计方法为实现跨不同领域的复杂多功能铺平了道路，在动态适应、智能响应和功能集成方面具有巨大的应用潜力。
