【新文速递】2025年4月17日固体力学SCI期刊最新文章

今日更新：Composite Structures 2 篇，Composites Part A: Applied Science and Manufacturing 5 篇，Composites Part B: Engineering 2 篇Composite StructuresVisco-elastoplastic constitutive modeling of coated woven fabrics - impact of inelastic response on structural analysisL. Makhool, D. Balzanidoi:10.1016/j.compstruct.2025.119164涂覆机织物的粘弹塑性本构建模-非弹性响应对结构分析的影响A constitutive model for the highly nonlinear, anisotropic, and inelastic behavior of coated woven fabrics is proposed by suitably combining different model components from the literature. The material model accounts for viscoelasticity and plastic anisotropy at finite strains and thus, enables the geometrically nonlinear simulation of engineering constructions including prestretch processes and history-dependent load protocols. The formulation is adjusted to experimental data, specifically designed to isolate the individual aspects of the model, and it shows a decent agreement with the data. A numerical integration procedure is provided and the utilization of the model in a computational setting is addressed. Through an exemplary boundary value problem replicating a simplified roof construction, the impact of the individual features of the model on the structural response are analyzed and compared with the linear elastic model commonly used in engineering practice and a competitive hyperelastic model from the literature. As a result, the model shows significant differences to the simpler formulations and is thus found beneficial for the numerical analysis of structural problems.将文献中不同的模型分量合理组合，建立了涂层机织物高度非线性、各向异性和非弹性行为的本构模型。材料模型考虑了有限应变下的粘弹性和塑性各向异性，因此，可以对工程结构进行几何非线性模拟，包括预拉伸过程和历史相关负载协议。该公式根据实验数据进行了调整，专门设计用于隔离模型的各个方面，并且与数据显示出良好的一致性。给出了一个数值积分过程，并讨论了该模型在计算环境中的应用。通过一个模拟简化屋顶结构的示例性边值问题，分析了模型的个别特征对结构响应的影响，并与工程实践中常用的线弹性模型和文献中的竞争超弹性模型进行了比较。结果表明，该模型与较简单的公式有很大的不同，因此有利于结构问题的数值分析。Study on the flexural creep stiffness of chopped basalt fiber reinforced asphalt using finite elements and mean field homogenizationXing Wu, Gabriele Milani, Aihong Kang, Pengfei Liudoi:10.1016/j.compstruct.2025.119197用有限元法和平均场均质法研究短切玄武岩纤维增强沥青的弯曲蠕变刚度The aim of the paper is to study the flexural creep stiffness of chopped basalt fiber reinforced asphalts (CBFRAs) using both the finite element (FE) and the mean field homogenization (MFH) method. First, a reliable three-dimensional FE model of a chopped basalt fiber reinforced asphalt is artificially generated with Matlab. Two FE models, in which wire and solid elements are used to mesh fibers, are numerically tested in bending and compared, validating them against experimental results. Then, two different mean field homogenization analytical models based on the Mori-Tanaka approach, which consider the random fiber orientations are developed and applied to predict the flexural creep stiffness of CBFRAs. Third, different fiber approximation methods are considered to carry out MFH computations. Fourthly, the MFH-amending-coefficient (MFHAC) method is proposed to amend MFH predictions, to improve convergence towards FE results. Finally, the MFH methods are compared with several traditional micro-mechanical models available. The results show that there is a significant difference between the results obtained using wire and solid elements, the solid FE model being more reliable. Particular attention should be paid to the values adopted for the fiber simplification number, to match correctly with experimental evidence. The flexural creep stiffness predicted by the two proposed MFH analytical models are closely aligned one each other. The fiber approximation methods adopted during the MFH analysis affect the results, with predictions more accurate when the actual fiber bundle is represented as an ellipsoidal inclusion based on the same-volume-radius criterion. The MFH-amending-coefficient method, combined with the results provided by MFH, can correctly predict the flexural creep stiffness of CBFRAs, allowing a reduction of the computational burden and an increase of computational efficiency when compared with standard FE simulations. It is finally shown how the MFH methods proposed are more accurate than existing methods available in literature.本文采用有限元法和平均场均匀化法研究了短切玄武岩纤维增强沥青（CBFRAs）的弯曲蠕变刚度。首先，利用Matlab人工生成了可靠的玄武岩纤维增强沥青的三维有限元模型。采用钢丝单元和实体单元对纤维进行网格化，对两种有限元模型进行了弯曲数值测试和比较，并与实验结果进行了验证。然后，基于考虑随机纤维取向的Mori-Tanaka方法，建立了两种不同的平均场均匀化分析模型，并将其应用于CBFRAs的弯曲蠕变刚度预测。第三，考虑不同的光纤近似方法进行MFH计算。第四，提出MFH修正系数（MFHAC）方法对MFH预测进行修正，提高对有限元结果的收敛性。最后，将MFH方法与几种传统的微力学模型进行了比较。结果表明，采用线单元和实体单元计算得到的结果存在显著差异，实体有限元模型更加可靠。应特别注意纤维简化数所采用的数值，以便与实验证据正确匹配。所提出的两种MFH分析模型所预测的挠曲蠕变刚度是紧密一致的。在MFH分析中采用的光纤近似方法 会影响结果，当实际光纤束表示为基于相同体积-半径准则的椭球包体时，预测更加准确。MFH修正系数法结合MFH提供的结果，可以正确预测cbfra的弯曲蠕变刚度，与标准有限元模拟相比，减少了计算量，提高了计算效率。最后证明了所提出的MFH方法比现有文献中可用的方法更准确。Composites Part A: Applied Science and ManufacturingIntralayer fusion bonding of additive manufactured fiber-reinforced polymer compositesPasita Pibulchinda, Eduardo Barocio, Corrine V. Evans, R.Byron Pipesdoi:10.1016/j.compositesa.2025.108941增材制造纤维增强聚合物复合材料的层内熔接Successful extrusion deposition additive manufacturing (EDAM) production critically depends on the understanding of the process-structure–property relationship, particularly the fusion bonding between beads, which directly impacts the fracture and strength characteristics of printed parts. This study presents a phenomenological non-isothermal intralayer fusion bonding model that couples time–temperature history and bead-to-bead contact area, which are influenced by printing parameters. Four key deposition parameters were investigated: nozzle height, the ratio of print velocity to extrudate velocity, bead-to-bead spacing, and layer time. Characterization of the fusion bonding model required intralayer bead contact data from optical microscopy, temperature histories obtained from heat transfer finite element analysis, and fracture toughness properties assessed through a modified double cantilever beam (DCB) test. A new DCB sample preparation method, testing procedure, and data analysis approach were developed to address inter-bead voids and fracture patterns specific to intralayer fracture. Findings indicate that processing parameters significantly affect bead dimensions, inter-bead voids, and the thermal history at the bead interface, resulting in variations in the degree of bonding and fracture toughness that can increase by factors of two to four成功的挤出沉积增材制造（EDAM）生产关键取决于对工艺-结构-性能关系的理解，特别是珠之间的融合键合，这直接影响打印部件的断裂和强度特性。本文提出了一种现象非等温层内熔合模型，该模型将时间-温度历史和头-头接触面积耦合在一起，并受打印参数的影响。研究了四个关键的沉积参数：喷嘴高度、打印速度与挤出速度之比、珠粒间距和层时间。表征熔合模型需要来自光学显微镜的层内头接触数据，来自传热有限元分析的温度历史，以及通过改进的双悬臂梁（DCB）测试评估的断裂韧性性能。研究人员开发了一种新的DCB样品制备方法、测试程序和数据分析方法，以解决层内裂缝特有的头间空隙和裂缝模式。研究结果表明，加工参数显著影响焊头尺寸、焊头间空隙和焊头界面处的热历史，导致焊头结合程度和断裂韧性的变化，这些变化可以增加2到4倍Porous nitrogen-doped reduced graphene oxide composite films for efficient electromagnetic shieldingTong Gao, Hui Zhao, Jie Kong, Qiang Zhuang, Xiaochen Liu, Yuelin Lv, Ye Ou, Lixin Chendoi:10.1016/j.compositesa.2025.108942 用于高效电磁屏蔽的多孔氮掺杂还原氧化石墨烯复合膜Graphene films are regarded as the next-generation electromagnetic interference (EMI) shielding material. However, the limited internal loss mechanisms in graphene films constrain their EMI shielding performance. In this work, porous nitrogen-doped reduced graphene oxide (porous N-rGO) composite films are prepared by vacuum filtration and a high-temperature annealing process using GO and micron-sized ZIF-8 particles as N source and template. After annealing, micron-sized ZIF-8 simultaneously introduces N heteroatoms into the efficient conductive network of rGO and creates a multi-level pore structure, which synergistically improves the shielding performance of composite films. The EMI shielding effectiveness of porous N-rGO composite film reaches 45.6 dB (48 μm) in the X-band, with an absolute shielding effectiveness of 35500.7 dB/cm2·g. Additionally, the porous N-rGO composite film with PDMS coating exhibits excellent flexibility and long-term durability. This flexible, high-performance EMI shielding composite film demonstrates great application potential in wearable electronic devices and aerospace fields.石墨烯薄膜被认为是下一代电磁干扰屏蔽材料。然而，石墨烯薄膜有限的内部损耗机制限制了其电磁干扰屏蔽性能。本研究以氧化石墨烯和微米级的ZIF-8粒子为氮源和模板，通过真空过滤和高温退火工艺制备了多孔氮掺杂还原氧化石墨烯（多孔N- rgo）复合薄膜。微米级的ZIF-8在退火后，同时将N杂原子引入到还原氧化石墨烯的高效导电网络中，形成多层次的孔隙结构，协同提高复合膜的屏蔽性能。多孔N-rGO复合膜在x波段的电磁干扰屏蔽效能达到45.6 dB(48 μm)，绝对屏蔽效能为35500.7 dB/cm2·g。此外，具有PDMS涂层的多孔N-rGO复合膜具有优异的柔韧性和长期耐久性。这种柔性、高性能的电磁干扰屏蔽复合薄膜在可穿戴电子器件和航空航天领域显示出巨大的应用潜力。Formulation and characterization of polyetherimide composites reinforced with recycled carbon fibers and thermal black particles for Fused filament fabricationDogan Arslan, Mihaela Mihai, Daniel Therriault, Martin Lévesquedoi:10.1016/j.compositesa.2025.108946 用再生碳纤维和热黑颗粒增强聚醚酰亚胺复合材料的配方和性能The study aims to develop novel polyetherimide (PEI) composite formulations by the incorporation of recycled carbon fibers (rCFs), thermal black (TB) particles, and the combination of rCF/TB hybrids. Thermoplastic composites were prepared by melt compounding of an amorphous PEI, rCFs, and TB particles. Four (4) formulations of composites were prepared, with a maximum loading of 20 wt% of rCF and a gradual replacement of rCF by TB. These formulations were used to manufacture standard specimens through injection molding (IM) and Fused Filament Fabrication (FFF) after being extruded into filaments. The effect of rCF and TB contents on the mechanical performance, the thermal behaviour, and on the microstructure of injected and FFF printed specimens were evaluated and analyzed. Incorporating 20 wt% rCF increased the tensile modulus of IM specimens from 3.2 GPa to 6.2 GPa, while tensile strength improved from 74 MPa to 103 MPa. FFF printed composite specimens with 20 wt% of rCF presented a tensile modulus of 4.3 GPa and a tensile strength of 70 MPa, respectively. The heat deflection temperature (HDT) of the IM and FFF printed composite increased from 177 °C to 200 °C with the addition of 20 wt% of rCF, a common metric for assessing the maximum service temperature. X-ray micro-tomography was carried out to assess the composites’ porosity contents and, as well, the rCF average legth and orientations. X-ray micro-tomography results illustrated that the presence of rCF led to a maximum porosity formation of up to 17 % in the FFF printed specimens. As expected, the initial length of the raw rCF was reduced from 6 mm down to approximately 30 μm mainly due to the shear forces applied during the different steps of the manufacturing process, i.e., composites compounding, filament extrusion, and FFF printing. Scanning electron microscopy (SEM) images obtained on fractured surfaces revealed that the incorporation of TB seemed to improve the fiber matrix adhesion when compared to composites containing only rCF. The obtained results allowed us to understand the thermal and mechanical performance of these novel composites and their potential for FFF 3D printing of parts for aircraft interior or ground transportation applications.该研究旨在通过加入再生碳纤维（rCF）、热黑（TB）颗粒以及rCF/TB杂化物的组合，开发新型聚醚酰亚胺（PEI）复合配方。采用熔融复合法制备了无定形PEI、rcf和TB颗粒的热塑性复合材料。制备了四(4)种复合材料配方，rCF的最大载荷为20 wt%， rCF逐渐被TB取代。这些配方在挤压成细丝后，通过注射成型（IM）和熔融长丝制造（FFF）来制造标准样品。评价和分析了rCF和TB含量对注射样和FFF打印样的力学性能、热行为和显微组织的影响。添加20 wt% rCF后，IM试件的拉伸模量由3.2 GPa提高到6.2 GPa，抗拉强度由74 MPa提高到103 MPa。含20 wt% rCF的FFF打印复合材料试件的拉伸模量为4.3 GPa，拉伸强度为70 MPa。IM和FFF打印复合材料的热变形温度（HDT）从177 °C增加到200 °C，添加20 wt%的rCF（评估最高使用温度的常用指标）。x射线显微层析成像评估了复合材料的孔隙率含量，以及rCF平均长度和方向。x射线显微断层扫描结果表明，rCF的存在导致FFF打印样品的最大孔隙率高达17% %。正如预期的那样，原始rCF的初始长度从6 mm减少到大约30 μm，这主要是由于在制造过程的不同步骤中施加的剪切力，即复合材料复合，长丝挤压和FFF打印。在断裂表面上获得的扫描电镜（SEM）图像显示，与仅含有rCF的复合材料相比，TB的掺入似乎改善了纤维基质的粘附性。获得的结果使我们能够了解这些新型复合材料的热性能和机械性能，以及它们在飞机内部或地面运输应用中FFF 3D打印部件的潜力。A data-driven approach to identify the optimal sub-laminates for homogeneity design under the concept of double-double compositesCheng Qiu, Hongwei Song, Jinglei Yangdoi:10.1016/j.compositesa.2025.108897 基于数据驱动的双双复合材料均匀性设计最佳子层压板识别方法This paper presents the design of the sub-laminate under the concept of the double-double composite using the data-driven method. As the key advantage of the double-double composites is the reduced repeat number of sub-laminates necessary to achieve homogeneity, it is therefore crucial to determine the best pattern of sub-laminates which ensures the optimal lightweight design with the minimum thickness. In the data-driven framework, first, a generative neural network model was built for generating the sub-laminates fitting in the scope of the homogeneous criterion. Then, a symbolic regression model was built for quantitatively finding the hidden layup patterns in the dataset of these sub-laminates. It is found that the form of double-double and triple-double stands out in the vast design space of all the possible layup sequences. The 4-layer sub-laminate of [θ/−β/β/−θ] and 6-layer sub-laminate of [θ/−β/−γ/+γ/+β/−θ] are most recommended as they meet the homogeneous criterion with less thickness and offer larger design space of mechanical properties. The established data-driven framework can be extended to other scenarios especially in finding the common design rules of laminates.本文介绍了在双双复合材料概念下，采用数据驱动方法设计子层压板的过程。由于双双复合材料的关键优势在于实现均匀性所需的子层压板重复次数减少，因此确定确保最优轻量化设计且厚度最小的最佳子层压板模式至关重要。在数据驱动框架中，首先构建了一个生成神经网络模型，用于生成符合均匀性标准的子层压板。然后，构建了一个符号回归模型，用于定量地在这些子层压板的数据集中找到隐藏的铺层模式。结果表明，在所有可能的铺层序列的广阔设计空间中，双双和三双的形式尤为突出。[θ/−β/β/−θ] 的 4 层子层压板和 [θ/−β/−γ/+γ/+β/−θ] 的 6 层子层压板最为推荐，因为它们满足均匀性标准且厚度更小，并提供了更大的机械性能设计空间。所建立的数据驱动框架可以扩展到其他场景，尤其是在寻找层压板的通用设计规则方面。The formation mechanism of nearly taper-free holes by femtosecond laser rotary drilling of SiCf/SiC compositesFeng Yang, Yan Bao, Zhaoji Li, Xiaodong Fan, Guangyi Ma, Zhigang Dongdoi:10.1016/j.compositesa.2025.108945飞秒激光旋转钻削SiCf/SiC复合材料近无锥度孔的形成机理A two-step femtosecond laser rotary drilling (FLRD) method is proposed to address the problem of difficulty in combining the quality and processing efficiency of small holes in SiCf/SiC composites. The laser fluence line and mesh analysis methods are proposed to grasp the distribution of laser fluence in the drilling and finishing process, reveal the formation mechanism of tapered blind hole profile, and elucidate the evolution of small hole profile from tapered blind hole to tapered base-hole and then to nearly taper-free hole. In 50 s, a hole with a diameter of 300 µm, an aspect ratio of 10 and a taper of 0.03° was achieved.The hole profiles at different feed depths were consistent with the predicted results, which verified the validity of the hole profile model. The hole profile formation mechanism of FLRD is revealed, which provides theoretical support for the processing of cooling holes in SiCf/SiC composites.针对SiCf/SiC复合材料小孔加工质量与加工效率难以结合的问题，提出了一种两步飞秒激光旋转打孔（FLRD）方法。提出了激光通量线和网格分析方法，掌握了激光通量在钻孔精加工过程中的分布，揭示了锥形盲孔轮廓的形成机理，阐明了小孔轮廓从锥形盲孔到锥形基孔再到近无锥孔的演变过程。在50 s内，获得了直径为300 µm，长径比为10，锥度为0.03°的孔。不同进给深度下的孔廓形与预测结果一致，验证了孔廓形模型的有效性。揭示了FLRD的孔廓形成机理，为SiCf/SiC复合材料冷却孔的加工提供了理论支持。Composites Part B: EngineeringExperimental characterization of mechanical and tribological properties of composite materials for friction-based force-limiting structural componentsKaixin Chen, Georgios Tsampras, Shivaglal Cheruvalath, Mary Thundathildoi:10.1016/j.compositesb.2025.112472基于摩擦的力限制结构部件的复合材料的机械和摩擦学性能的实验表征This paper presents an experimental study to characterize the mechanical properties of composite materials and the tribological properties of composite to low-carbon structural steel friction interfaces for friction-based structural components in earthquake structural engineering applications. A systematic experimental testing program was developed, including the coupon tensile test, the plate bearing test, the bolt relaxation test, and the friction test. The friction test considered the normal load level, loading frequencies, sliding velocities, velocity profiles, and sliding histories as the testing parameters. Six types of phenolic-resin-based fiber-reinforced composite materials were tested. The results revealed the influence of the manufacturing process and the constituents of the composite materials on their mechanical and tribological properties. The flash compression molding process in manufacturing could produce composite materials having a lower concentration of phenolic resin than designed, and these materials exhibited exacerbated through-thickness creep behavior. Friction tests with different sliding velocities showed a general trend where an increase in the sliding velocity overall reduced the coefficient of friction, while lower sliding velocities overall increased the coefficient of friction. The velocity-dependent frictional behavior was found to depend on the material constituents of the composite materials. Among the friction interfaces tested, the friction interface with the composite friction material Gatke 398 (containing glass reinforcing fibers and graphite, Teflon and molybdenum disulfide MoS2 lubricants) in contact with low-carbon structural steel appeared to exhibit the most stable frictional behavior under various sliding velocities and was considered suitable for use in friction-based structural components for earthquake structural engineering applications.本文对地震结构工程中摩擦型结构构件的复合材料力学性能及复合材料与低碳结构钢摩擦界面的摩擦学性能进行了试验研究。制定了系统的试验测试程序，包括粘结件拉伸试验、板承试验、螺栓松弛试验和摩擦试验。摩擦试验以法向载荷水平、加载频率、滑动速度、速度分布和滑动历史作为试验参数。对6种酚醛树脂基纤维增强复合材料进行了试验。结果揭示了复合材料的制造工艺和组成对其力学和摩擦学性能的影响。在制造过程中，闪蒸压缩成型工艺可以生产出比设计的酚醛树脂浓度更低的复合材料，并且这些材料表现出加剧的贯穿厚度蠕变行为。不同滑动速度下的摩擦试验表明，总体上，滑动速度的增加降低了摩擦系数，而整体上，滑动速度的降低增加了摩擦系数。发现速度依赖的摩擦行为取决于复合材料的材料成分。在所测试的摩擦界面中，复合摩擦材料Gatke 398（含玻璃增强纤维和石墨、特氟龙和二硫化钼MoS2润滑剂）与低碳结构钢接触的摩擦界面在各种滑动速度下表现出最稳定的摩擦行为，被认为适合用于地震结构工程应用的摩擦基结构部件。Experimental Investigation on Drilling Behavior of Carbon-Kevlar Monolithic and Interyarn Hybrid CompositeShashi Ranjan Pathak, Anup Malik, Harlal Singh Malidoi:10.1016/j.compositesb.2025.112499碳-凯夫拉整体及纱间混杂复合材料钻孔性能的实验研究Carbon-Kevlar interyarn hybrid composites are sufficiently stiff and tough, which makes them useful in various sectors. Despite these potentials, their drilling behavior has not yet been explored. Drilling composite materials generates defects due to the distinct properties of the fiber and matrix. This study explores the drilling behavior of carbon-Kevlar monolithic and interyarn hybrid thermoplastic composite by changing tool geometries, feed rates, and spindle speeds. The chip morphology, drilling temperature, thrust force, delamination factor, and hole wall surface were analyzed. Three types of composite laminates (monolithic carbon, monolithic Kevlar, and carbon-Kevlar interyarn hybrid composites) were fabricated. Holes were made by two different geometries (conventional twist drill and brad spur drill) at varying feed rates (15, 30, and 45 mm/min) and spindle speeds (1000, 2000, and 3000 rpm). Compared with the conventional twist drill, the brad spur drill produced a 32.40% reduction in maximum drilling temperature, 29.73% less thrust force, and 13.57% less delamination factor for the carbon-Kevlar hybrid composite. Based on the microstructural analysis, the brad spur drill produces a better surface with lesser fiber fracture, delamination, cavity, and matrix smearing than the conventional twist drill for all three composites.碳-凯夫拉纤维纱线间混合复合材料具有足够的刚性和韧性，这使得它们在各个领域都很有用。尽管具有这些潜力，但它们的钻井行为尚未得到探索。钻孔复合材料由于纤维和基体的特性不同而产生缺陷。本研究通过改变刀具几何形状、进给速度和主轴速度，探索了碳-凯夫拉整体和纱线间混合热塑性复合材料的钻孔行为。分析了切屑形貌、钻进温度、推力、分层系数和孔壁表面。制备了三种类型的复合层压板（整体碳、整体凯夫拉和碳-凯夫拉纱间混杂复合材料）。在不同的进给速度（15、30和45 mm/min）和主轴转速（1000、2000和3000 rpm）下，用两种不同的几何形状（传统麻花钻和brad正钻）钻出孔。与传统麻花钻相比，布拉德直钻的最大钻进温度降低了32.40%，推力降低了29.73%，碳-凯夫拉复合材料的分层系数降低了13.57%。根据微观结构分析，对于这三种复合材料，与传统麻花钻相比，brad直钻的表面效果更好，纤维断裂、分层、空腔和基体涂抹更少。来源：复合材料力学仿真Composites FEM