【新文速递】2025年2月23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 5 篇

Composite Structures

Free vibrations and buckling analyses of sandwich cylindrical shells with auxetic core and shape memory alloy wires reinforced face sheets

Farzan Yavari, Akbar Alibeigloo

doi:10.1016/j.compstruct.2025.118994

形状记忆合金线增强面板带辅助芯夹层圆柱壳的自由振动和屈曲分析

In this study, free vibrations and buckling analyses of cylindrical sandwich shells with an auxetic honeycomb core and shape memory alloy (SMA) wires reinforced face sheets in thermal environments were conducted. The properties of the shape memory alloy wires were calculated using the one-dimensional Brinson model. The equations of motion were derived based on classical theory, considering Von-Karman geometric nonlinearity and utilizing Hamilton’s principle. The linearized and homogenized equations of motion, obtained through the perturbation technique, were solved using the differential quadrature method to determine the structure’s natural frequency and buckling load. The results were validated by comparing them with existing literature. The effects of the geometrical parameters of the structure, the volume fraction and pre-strain of the wires, and temperature on the natural frequency, buckling load, and thermal buckling were investigated. The results showed that by embedding honeycomb cells or wires in the circumferential direction of the cylinder, high natural frequencies can be achieved, while embedding them in the longitudinal direction creates high buckling load and thermal buckling. Additionally, increasing the pre-strain and volume fraction of the wires enhances the natural frequency, buckling load, and thermal buckling.

在本研究中，对具有消声蜂窝芯的圆柱形夹层壳和形状记忆合金（SMA）丝增强面板在热环境下的自由振动和屈曲进行了分析。采用一维Brinson模型对形状记忆合金丝的性能进行了计算。在经典理论的基础上，考虑Von-Karman几何非线性，利用Hamilton原理推导出了运动方程。通过摄动技术得到线性化和均匀化的运动方程，采用微分正交法求解，确定了结构的固有频率和屈曲载荷。通过与已有文献的比较，验证了研究结果。研究了结构几何参数、丝的体积分数、预应变、温度对固有频率、屈曲载荷和热屈曲的影响。结果表明，在圆柱体周向埋设蜂窝单元或蜂窝丝可以获得较高的固有频率，而在纵向埋设蜂窝单元或蜂窝丝会产生较高的屈曲载荷和热屈曲。此外，增加钢丝的预应变和体积分数可以提高固有频率、屈曲载荷和热屈曲。

Effect of prepreg ply thickness and orientation on tensile properties and damage onset in carbon-fiber composites for cryogenic environments

Eduardo Szpoganicz, Fabian Hübner, Uwe Beier, Matthias Geistbeck, Maximilian Korff, Ling Chen, Youhong Tang, Tobias Dickhut, Holger Ruckdäschel

doi:10.1016/j.compstruct.2025.118996

 

预浸料厚度和取向对低温环境下碳纤维复合材料拉伸性能和损伤发生的影响

This study addresses the effects of laminate design on the damage and failure behaviour of carbon-fiber reinforced composites with varying ply thicknesses and stacking configurations under cryogenic temperatures. The aim was to observe the ultimate tensile performance and in-situ onset of damage at 296 and 77 K environments, combining microscopy and simulation analyses. Laminates with fiber areal weights of 140, 70 and 45 g/m2 were stacked in 2 different quasi-isotropic configurations. The results show that ultimate tensile properties are improved at 77 K, though failure strain slightly decreases. Thinner ply laminates with 70 and 45 g/m2 showed a 15–20 % improvement in cryogenic tensile failure-strain, while damage onset shifted from 0.5 % to 0.8 % of strain. Adding off-axis plies improved laminates by 10–15 %, preventing damage onset up to failure. Microscopy and simulation analyses showed good agreement with the in-situ signal for the onset of damage, indicating matching levels of delamination failure initiation measured at 77 K. No transverse microcracks were observed, and permeation measurements showed no significant leakage increase after delamination onset. Ultimately, this work introduces a novel integrated approach by combining in-situ cryogenic testing, damage onset methodology, fractography, simulation analysis, and gas permeation measurements.

本研究探讨了层压设计对不同厚度碳纤维增强复合材料在低温下的损伤和破坏行为的影响。目的是结合显微镜和模拟分析，观察296和77 K环境下的极限拉伸性能和原位损伤。纤维面重分别为140、70和45 g/m2的层压板以2种不同的准各向同性构型堆叠。结果表明：77 K的极限拉伸性能得到改善，但破坏应变略有降低；厚度为70和45 g/m2的较薄层合板在低温拉伸破坏应变方面表现出15-20 %的改善，而损伤开始从应变的0.5 %转变为0.8 %。添加离轴层改善了10-15 %的层压板，防止损坏发生直到失败。显微镜和模拟分析显示，损伤开始的原位信号与77 K测量的分层破坏起始水平相匹配。没有观察到横向微裂纹，渗透率测量显示分层发生后泄漏量没有明显增加。最后，这项工作引入了一种新的综合方法，将原位低温测试、损伤发生方法、断口学、模拟分析和气体渗透测量相结合。

Experimental study of bond performance on carbon fiber fabric-steel joint with mechanical anchors at elevated temperatures

Zhongwei Zhao, Zeyuan Jin

doi:10.1016/j.compstruct.2025.118998

高温机械锚固碳纤维-钢连接粘结性能试验研究

This paper investigates the effects of anchor reinforcement on the bond-slip behavior of carbon fiber fabric-steel systems under high-temperature conditions. The experiments were conducted with three temperature ranges from 20 °C to 70 °C, including a control group with no anchor reinforcement and two groups with different anchor positions. The results indicated that as the temperature increased from 20 °C to 50 °C, the load capacity of all specimen groups improved to varying extents. Beyond 50 °C, a significant degradation in load capacity was observed for all groups. Furthermore, temperature and anchor position significantly affected the failure modes, including the residual area of carbon fiber fabric on the steel plate surface (RA) and the modes of carbon fiber fabric fracture, as well as the bond-slip behavior. As the temperature rose, but the glass transition temperature (Tg ), RA increased, impacting the strain distribution and the maximum shear stress at the bonded interface. The experiments also showed that when the environmental temperature exceeds Tg , anchor reinforcement can enhance the bond reliability of the carbon fiber fabric-steel system. The findings of this study provide insights into the degradation patterns of carbon fiber fabric-steel under high-temperature environments and propose a viable reinforcement method.

本文研究了高温条件下锚固加固对碳纤维-钢体系粘结滑移性能的影响。实验在20 °C ~ 70 °C的三个温度范围内进行，包括没有锚固加固的对照组和不同锚固位置的两组。结果表明：当温度从20 °C升高到50 °C时，各组试件的承载能力均有不同程度的提高。超过50 °C，所有组的负载能力都明显下降。温度和锚固位置显著影响碳纤维织物在钢板表面的残余面积（RA）和碳纤维织物的断裂模式，以及粘结滑移行为。随着温度的升高，玻璃化转变温度(Tg )， RA增大，影响了粘结界面处的应变分布和最大剪切应力。实验还表明，当环境温度超过Tg时 锚固加固可以提高碳纤维-钢结构的粘结可靠性。研究结果揭示了碳纤维-钢复合材料在高温环境下的降解规律，并提出了一种可行的增强方法。

Low-velocity impact compressive damage of 3-D braided ramie fiber reinforced composites

Lamei Wang, Baozhong Sun, Ming Cai, Bohong Gu

doi:10.1016/j.compstruct.2025.119000

三维编织苎麻纤维增强复合材料低速冲击压缩损伤研究

Impact damage mechanisms of natural plant fiber reinforced composites are essential for their structural design and practical applications. This study reports quasi-static and dynamic compressive behaviors of three-dimensional braided ramie fiber reinforced composites (3DRFRC) and the comparison with carbon fiber reinforced composites (3DCFRC). The results show that the 3DRFRC has a long yield stage under the quasi-static compression owing to ramie fiber bend. The 3DRFRC exhibits higher in-plane dynamic compressive properties than those of the 3DCFRC, and the energy absorption rate (EAR) of the former is 27 % more than that of the latter at 30 J impact energy. EAR of the four-directional in the 3DRFRC exceeds 90 % under dynamic compression and is higher than that of the five-directional owing to more accessible deformations. The FEA results show that the resin damage in yarn was the leading cause of yarn damage under dynamic compression. The ramie fiber bend and lumen collapse are micro-scale damage mechanisms of the 3DRFRC under in-plane and out-of-plane dynamic compression, respectively.

天然植物纤维增强复合材料的冲击损伤机理对其结构设计和实际应用具有重要意义。本文报道了三维编织苎麻纤维增强复合材料（3DRFRC）的准静态和动态压缩性能，并与碳纤维增强复合材料（3DCFRC）进行了比较。结果表明：在苎麻纤维弯曲的准静态压缩作用下，3DRFRC具有较长的屈服阶段；3DRFRC比3DCFRC表现出更高的面内动态压缩性能，在30 J冲击能量时，前者的能量吸收率（EAR）比后者高27 %。动态压缩下，3DRFRC中四向的EAR值超过90% %，由于变形更容易接近，因此高于五向。有限元分析结果表明，在动态压缩条件下，纱线中的树脂损伤是纱线损伤的主要原因。苎麻纤维弯曲和管腔塌陷分别是3DRFRC在面内和面外动态压缩下的微尺度损伤机制。

Composites Part A: Applied Science and Manufacturing

Superior multifunctional protecting property of novel slippery integrated thin coating balancing surface and internal design

Daowei Lai, Yanfei Ma, Bin Li, Zhenjun Peng, Wufang Yang, Qiangliang Yu, Xiangfei Zhao, Bo Yu, Chufeng Sun, Feng Zhou

doi:10.1016/j.compositesa.2025.108774

新型光滑一体化薄涂层平衡表面和内部设计，具有优越的多功能保护性能

We developed a novel solid–liquid composite coating with a gradient distribution of liquid-like brush grafting polysilazane and well-distributed modified graphene oxide, integrating anti-corrosion and underwater anti-adhesion properties, which exhibits stale anti-fouling and drag reduction properties. The corrosion current of the coating decreases by six orders of magnitude compared to that of the substrate, and it has an extremely long salt spray lifespan of over 1440 h with the thickness approximately 20 μm. It also achieves over 97 % reduction in microbial contamination, and the maximum drag reduction rate reaches about 36 %, exhibiting outstanding antifouling and drag reduction performance. Impressively, the drag reduction rate remains very stable even after the corrosion test, followed by algae adhesion tests and after abrasion. Even the coating is worn, it can still maintain relatively stable protective performance. This work provides a novel and feasible method for the engineering application of ocean antifouling and drag reduction.

我们开发了一种新型的固液复合涂层，该涂层具有梯度分布的液体状电刷接枝聚硅氮烷和均匀分布的改性氧化石墨烯，集防腐和水下抗粘着性能于一体，具有良好的防污和减阻性能。与基材相比，涂层的腐蚀电流减小了6个数量级，且厚度约为20 μm的涂层具有超过1440 h的超长盐雾寿命。微生物污染减少97%以上，最大减阻率达36%左右，具有出色的防污减阻性能。令人印象深刻的是，即使经过腐蚀试验、藻类附着试验和磨损试验，减阻率仍然非常稳定。即使涂层磨损，仍能保持相对稳定的防护性能。为海洋防污减阻的工程应用提供了一种新颖可行的方法。

Composites Part B: Engineering

Ultra-High Temperature Ceramic (HfC) reinforcement of laser powder-directed energy deposited Inconel 718: Microstructural evolution and tensile properties at room and high temperatures

Wonjong Jeong, Joowon Suh, Suk Hoon Kang, Yejin Kang, Minseok Lee, Taegyu Lee, Kang Taek Lee, Ho Jin Ryu

doi:10.1016/j.compositesb.2025.112281

 

激光粉末定向能沉积Inconel 718的超高温陶瓷（HfC）增强：室温和高温下的组织演变和拉伸性能

This study explores the influence of ultra-high-temperature ceramic (UHTC) hafnium carbide (HfC) reinforcement on the microstructural evolution and mechanical properties of Inconel 718 produced by laser powder directed energy deposition (LP-DED). Inconel 718 powder was uniformly coated with HfC particles (HfCp) via the surface modification and reinforcement transplantation (SMART) process. The introduction of HfCp, which accumulated at the melt pool surface during LP-DED, significantly enhanced the laser beam absorptivity, inducing localized heating that resulted in the dissolution of HfC and the formation of secondary phases, such as Ni5Hf, (Hf, Nb, Ti)C, and Hf-enriched Laves phases. These secondary phases, causing Nb depletion, contributed to grain refinement, stabilized the microstructure, and promoted the formation of γ′/γ′′ co-precipitates. Mechanical testing revealed that at 650°C, Inconel 718 samples reinforced with 1.5 vol% and 3.0 vol% HfC demonstrated superior tensile strength and elongation compared to the unreinforced sample, with no observed serration behavior. The secondary phases enhanced the dislocation density and strain-hardening behavior, while acting as diffusion barriers to prevent oxidation-induced intergranular cracking, whereas Hf and C specifically stabilized the grain boundaries, further enhancing the oxidation resistance at elevated temperatures. These results underscore the importance of reinforcing the laser beam absorptivity during the fabrication of high-performance composites by LP-DED and confirm that HfC-reinforced Inconel 718 has great potential for high-temperature applications.

研究了超高温陶瓷（UHTC）碳化铪（HfC）增强对激光粉末定向能沉积（LP-DED）制备的Inconel 718显微组织演变和力学性能的影响。通过表面改性和增强移植（SMART）工艺，在Inconel 718粉末表面均匀包裹HfC颗粒（HfCp）。在LP-DED过程中，积累在熔池表面的HfCp的引入显著增强了激光束的吸收率，引起局部加热，导致HfC的溶解和二次相的形成，如Ni5Hf， （Hf, Nb, Ti）C和富Hf的Laves相。这些次级相导致Nb损耗，有助于晶粒细化，稳定组织，促进γ′/γ”共析出相的形成。力学测试表明，在650℃时，添加1.5 vol%和3.0 vol% HfC增强的Inconel 718样品的抗拉强度和伸长率优于未增强的样品，没有观察到锯齿现象。二次相提高了位错密度和应变硬化行为，同时作为扩散屏障防止氧化引起的晶间开裂，而Hf和C特别稳定了晶界，进一步增强了高温下的抗氧化性。这些结果强调了在LP-DED制备高性能复合材料过程中增强激光吸收率的重要性，并证实了hfc增强Inconel 718在高温应用方面具有巨大的潜力。

Tung oil-derived polyurethane composite foams based on dual dynamic phenol-carbamate exchange with desirable mechanical properties, flame retardancy and recyclability

Baozheng Zhao, Fei Song, Zheng Pan, Yijiao Xue, Linfeng Tian, Tiancheng Zhang, Li Tan, Rui Yang, Yonghong Zhou, Meng Zhang

doi:10.1016/j.compositesb.2025.112306

 

基于酚醛-氨基甲酸酯双动态交换的桐油衍生聚氨酯复合泡沫具有良好的力学性能、阻燃性和可回收性

At present, thermoset polyurethane foams were mainly derived from petroleum-based resources and faced inherent challenges such as difficulty in recycling and fire hazard. In this study, tung oil and catechol were used to prepare tung oil-derived polyphenols via Friedel-Crafts alkylation reaction. These polyphenols were combined with isocyanate to synthesize tung oil-derived polyurethane (TPU) foam. With the presence of dual dynamically cross-linked phenol-carbamate bonds, the TPU foam could be hot-pressed several times into a smooth and homogeneous TPU film. To improve the fire resistance and compressive strength of TPU foam, phytic acid functionalized metal-organic frameworks (UiO-66-NH2@PA) flame retardants were successfully synthesized by one-pot solvothermal method. By adding 20 wt% of flame retardants, the TPU composite foams achieved a UL-94 V-0 flammability rating with a limiting oxygen index of 28.1 vol%. The total heat release, total smoke release, CO production and CO2 production of the TPU composite foams were reduced by 43.1%, 57.8%, 63.6% and 62.1%, respectively, compared to the pure TPU foam. Furthermore, the compressive strength of the TPU composite foam continued to increase with increasing flame retardants content, reaching a maximum of 0.55 MPa. Importantly, the introduction of the flame retardants didn't affect the hot-press recycling performance of the TPU foam, but instead improved the tensile strength and flame retardancy of the recycled TPU film. This work paved the way to produce bio-based PU foam with excellent flame retardancy and recyclability.

目前，热固性聚氨酯泡沫塑料主要来源于石油基资源，面临着回收困难和火灾危险等固有挑战。本研究以桐油和儿茶酚为原料，通过Friedel-Crafts烷基化反应制备桐油衍生多酚。这些多酚与异氰酸酯结合合成桐油衍生聚氨酯（TPU）泡沫。由于双动态交联酚氨基甲酸酯键的存在，TPU泡沫可以多次热压成光滑均匀的TPU膜。为了提高TPU泡沫材料的耐火性和抗压强度，采用一锅溶剂热法制备了植酸功能化金属有机骨架（UiO-66-NH2@PA）阻燃剂。通过添加20 wt%的阻燃剂，TPU复合泡沫达到UL-94 V-0的可燃性等级，极限氧指数为28.1 vol%。与纯TPU泡沫相比，TPU复合泡沫的总放热量、总排烟量、CO产生量和CO2产生量分别降低了43.1%、57.8%、63.6%和62.1%。随着阻燃剂含量的增加，TPU复合泡沫的抗压强度持续增加，最大抗压强度为0.55 MPa。重要的是，阻燃剂的引入不影响TPU泡沫的热压回收性能，反而提高了回收TPU膜的拉伸强度和阻燃性。为制备具有优异阻燃性和可回收性的生物基聚氨酯泡沫塑料铺平了道路。

The impact of crystalline PEEK sizing agent on the interfacial crystallization behavior and interfacial properties of carbon fiber reinforced PEEK composites

Siyu Zhong, Zhongxin Dong, Yanwei Xiao, Yuan Li, LiangLiang Pei, Shengdao Wang, Guibin Wang

doi:10.1016/j.compositesb.2025.112307

 

结晶型PEEK施胶剂对碳纤维增强PEEK复合材料界面结晶行为及界面性能的影响

In recent years, numerous studies have reported the application of crystalline sizing agents for the interfacial modification of carbon fiber reinforced polyether ether ketone (PEEK/CF) composites. However, the underlying mechanism by which these agents improve the interfacial properties remains unclear. Therefore, the interfacial enhancement mechanism of PEEK/CF composites using crystalline PEEK sizing agents was explored from a microscopic perspective, specifically focusing on interfacial crystallization in this study. Firstly, the crystallization behavior of PEEK on the CF surfaces modified with varying concentrations of crystalline PEEK sizing agents was investigated using polarized optical microscope (POM). It was observed that the sizing agent could induce the formation of PEEK transcrystallinity (TC) on the CF surface, with the 1 wt% concentration of sizing agent resulting in the densest crystal nuclei. The lamellar morphology and molecular orientation of the TC layers were further analyzed. Correspondingly, higher interfacial shear strength (IFSS) was observed in PEEK/CF composites with denser TC structures. Furthermore, the film tensile tests and chemical solvent erosion experiments were conducted to investigate the distribution of weak interfacial phases. It was found that the TC layer did not introduce new "weak interfacial phases" into the composites and exhibited superior resistance to solvent erosion. Finally, the mechanism of action of crystalline PEEK sizing agents was discussed. It was proposed that PEEK molecules from the sizing agent could effectively fill the voids at the interface of the composites which were caused by the low mobility of high-viscosity PEEK resin matrix. This led to an increase in nucleation sites on the CF surface and the formation of a denser TC layer.

近年来，大量研究报道了结晶施胶剂在碳纤维增强聚醚醚酮（PEEK/CF）复合材料界面改性中的应用。然而，这些试剂改善界面性能的潜在机制尚不清楚。因此，本研究从微观角度探讨结晶PEEK施胶剂对PEEK/CF复合材料界面增强机理，重点研究界面结晶作用。首先，利用偏光显微镜（POM）研究了聚醚醚酮在不同浓度聚醚醚酮施胶剂改性的CF表面上的结晶行为。结果表明，施胶剂可诱导聚醚醚酮在CF表面形成跨结晶度（TC），当施胶剂浓度为1wt %时晶核密度最大。进一步分析了TC层的层状形貌和分子取向。相应的，TC结构致密的PEEK/CF复合材料具有更高的界面剪切强度（IFSS）。通过薄膜拉伸试验和化学溶剂侵蚀试验研究了弱界面相的分布。发现TC层没有在复合材料中引入新的“弱界面相”，并且具有较好的抗溶剂侵蚀性能。最后讨论了结晶型PEEK施胶剂的作用机理。研究结果表明，施胶剂中的PEEK分子可以有效填充高粘度PEEK树脂基体低迁移率造成的复合材料界面空隙。这导致CF表面的成核位点增加，形成更致密的TC层。

Enhancement of Flexural Strength of γ-C2S Carbonated Compacts through In Situ Synthesis of Mg-calcite

Yunchao Liang, Yunpeng Liu, Zhichao Liu, Fazhou Wang, Shuguang Hu

doi:10.1016/j.compositesb.2025.112331

原位合成镁方解石提高γ-C2S碳化压块抗弯强度

To address the inherent brittleness of carbonated gamma calcium silicate (γ-C2S) material, we controlled the crystal transformation of γ-C2S during the carbonization process to facilitate the development of Mg-calcite particles as secondary phases. In this study, highly Mg-calcite carbonated compacts were synthesized in situ by modulating the concentration of MgCl2 in an aqueous solution. The mechanisms underlying the toughening of these compacts are discussed in detail. The resulting carbonated compacts prepared in 0.1 or 0.5 mol/L MgCl2 solutions exhibited compressive strengths over 100 MPa and flexural strengths exceeding 40 MPa. Additional MgCl2 introduced a chemical looping that accelerates the carbonation reaction. Simultaneously, the formation of Mg-calcite and aragonite induced structural deformation and internal coherent strain, enhancing the capacity of the γ-C2S carbonated compacts to withstand high flexural stresses. Furthermore, the interaction of Mg2+ ions with silica gels promoted the formation of highly polymerized M-S-H structures, resulting in an increased elastic modulus of the carbonated matrix. This toughening strategy effectively addresses the inherent challenges associated with carbonatable binders and holds promise for developing low-carbon cement alternatives.

为了解决碳化γ硅酸钙（γ-C2S）材料固有的脆性问题，我们在碳化过程中控制γ-C2S的晶型转变，促进镁方解石颗粒作为次生相的发育。在本研究中，通过调节水溶液中MgCl2的浓度，原位合成了高镁方解石碳酸化致密物。详细讨论了这些致密材料增韧的机理。在0.1或0.5 mol/L MgCl2溶液中制备的碳化压块抗压强度超过100 MPa，抗折强度超过40 MPa。额外的MgCl2引入了一个化学环，加速了碳化反应。同时，镁方解石和文石的形成引起了结构变形和内部相干应变，增强了γ-C2S碳化压块的高弯曲应力承受能力。此外，Mg2+离子与硅胶的相互作用促进了高度聚合的M-S-H结构的形成，导致碳化基体的弹性模量增加。这种增韧策略有效地解决了与可碳化粘合剂相关的固有挑战，并为开发低碳水泥替代品带来了希望。