Composite Structures最新文献_第10页

Programmable multilayer metasheets: 3D shape-morphing through differential Poisson’s ratio mechanism 可编程多层元表：通过微分泊松比机制的三维形状变形

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-20 DOI: 10.1016/j.compstruct.2025.119304

Xiaotian Zhang , Chengyang Lu , Ruizhi Li , Fei Pan , Yuli Chen

{"title":"Programmable multilayer metasheets: 3D shape-morphing through differential Poisson’s ratio mechanism","authors":"Xiaotian Zhang , Chengyang Lu , Ruizhi Li , Fei Pan , Yuli Chen","doi":"10.1016/j.compstruct.2025.119304","DOIUrl":"10.1016/j.compstruct.2025.119304","url":null,"abstract":"<div><div>This paper introduces an innovative multilayer metasheets deformation strategy that enables the deployment of two-dimensional (2D) flat materials into complex three-dimensional (3D) curved surfaces, leveraging the differential Poisson’s ratio mechanism. Based on the design principles, we initially designed and established an analytical model for multilayer metasheets concept. Finite element simulations are then utilized to investigate the impact of varying Poisson’s ratio characteristics among different layers at the unit cell level on the curvature and mechanical characteristics of the metasheets. Building on this unit cell characteristic research, we further explored the potential of metasheets in deploying general curved surfaces through in-plane combinatorial design methods, and developed a more precise shape inverse design approach for deformable metasurfaces constructed from multilayer metasheets. We verify the 3D curved surface deployment mechanism of metasheets concept through a series of quasi-static tensile experiments, which present a good agreement with our simulation results. Finally, this paper further discusses the potential applications of the multilayer metasheets concept. The multilayer metasheets concept offers a fresh perspective for introducing mechanical metamaterial into the 3D shape-shifting techniques, broadening the path for the application of curved surface deployment in more general engineering scenarios.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"370 ","pages":"Article 119304"},"PeriodicalIF":6.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing multi-level buckling-resistant lattice truss structures based on space group P23 of crystal lattices 基于晶格P23空间群的多层抗屈曲晶格桁架结构设计

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-20 DOI: 10.1016/j.compstruct.2025.119303

Yongjun Wang , Changliang Lai , Wenyi Bao , Ruiyi Jiang , Xiaofei Li , Hualin Fan

{"title":"Designing multi-level buckling-resistant lattice truss structures based on space group P23 of crystal lattices","authors":"Yongjun Wang , Changliang Lai , Wenyi Bao , Ruiyi Jiang , Xiaofei Li , Hualin Fan","doi":"10.1016/j.compstruct.2025.119303","DOIUrl":"10.1016/j.compstruct.2025.119303","url":null,"abstract":"<div><div>This paper presents a method from the space group symmetry theory of crystal lattices to design lattice truss materials. Utilizing this method, a new hierarchical anti-buckling lattice structure was designed based on the <em>P</em>23 space group symmetry operation. With thermoplastic polyurethane elastomer as the matrix material, relevant specimens were manufactured. Quasi-static mechanical responses of this metamaterial were examined through experimental and numerical approaches. A systematic analysis was conducted on the effects of microstructural parameters on the deformation mechanism, including arrangement and number of unit cells, wall thickness ratio, and relative density. The results indicate that the designed structure exhibits a deformation mode with significant negative Poisson’s ratio effect and multi-level buckling resistance. Moreover, the design method based on the space group symmetry theory of crystal lattices proposed in this paper can facilitate the development of more innovative lattice truss metamaterials.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119303"},"PeriodicalIF":6.3,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiscale analysis of open holes and fasteners in CMC structures with the Generalized Finite Element Method 用广义有限元法对CMC结构的开孔和紧固件进行多尺度分析

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-19 DOI: 10.1016/j.compstruct.2025.119217

B. Mazurowski , C. Przybyla , C.A. Duarte

引用次数: 0

Aeroelastic characteristics of honeycomb sandwich panel with curved-wall cores in supersonic flow 弯曲壁蜂窝夹芯板在超音速流动中的气动弹性特性

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-18 DOI: 10.1016/j.compstruct.2025.119281

Hao Liu , Shupeng Sun , Wei Tian , Tian Zhao , Kun Nie , Shaowei Wang

{"title":"Aeroelastic characteristics of honeycomb sandwich panel with curved-wall cores in supersonic flow","authors":"Hao Liu , Shupeng Sun , Wei Tian , Tian Zhao , Kun Nie , Shaowei Wang","doi":"10.1016/j.compstruct.2025.119281","DOIUrl":"10.1016/j.compstruct.2025.119281","url":null,"abstract":"<div><div>This paper develops a partitioned three-dimensional fluid–structure interaction method to predict the flutter behaviors of honeycomb sandwich panels with curved-wall cores in supersonic airflow. An advanced analytical model is utilized to represent the curved-wall honeycomb structure. A higher-order shear deformation theory, which accounts for the zigzag effect, is employed for modeling the honeycomb sandwich panel. Nonlinear von Kármán strains are incorporated to consider the large deformations of the panel. The supersonic airflow is formulated by the finite volume method within an Arbitrary Lagrangian-Eulerian (ALE) framework. The evolution of nonlinear flutter behaviors in honeycomb sandwich panels under varying dynamic pressures is investigated. The results indicate that the curvature radius and the ply-angle of the honeycomb layer exert differ influences on the flutter dynamic behaviors. The presence of curvature results in a reduced amplitude and an increased frequency of flutter, while altering the ply-angle results in both an increased amplitude and frequency. In addition, asymmetric flutter deflections associated with uneven pressure distributions are observed in honeycomb layers with positive ply-angles. These findings can serve as a basis for honeycomb structure optimal design.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119281"},"PeriodicalIF":6.3,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An impact damage monitoring method for composite materials based on strain correlation of interlayers with optical fiber sensors 基于夹层应变相关性的光纤传感器复合材料冲击损伤监测方法

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-18 DOI: 10.1016/j.compstruct.2025.119288

Zhao Tang , Xin Gui , Zhengying Li , Fanhao Zeng , Shuxin Li

引用次数: 0

Damage detection in laminated rubber bearings based on defect mode of periodic structure and electromechanical admittance 基于周期结构缺陷模式和机电导纳的层合橡胶轴承损伤检测

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-18 DOI: 10.1016/j.compstruct.2025.119276

Ying Zhang, Hongping Zhu, Zehui Shen, Hao Luo, Shun Weng

{"title":"Damage detection in laminated rubber bearings based on defect mode of periodic structure and electromechanical admittance","authors":"Ying Zhang, Hongping Zhu, Zehui Shen, Hao Luo, Shun Weng","doi":"10.1016/j.compstruct.2025.119276","DOIUrl":"10.1016/j.compstruct.2025.119276","url":null,"abstract":"<div><div>The detection of minor damages in laminated rubber bearings is of great significance, given their critical role in structural safety. The appropriate configuration of piezoelectric (PZT) transducers plays a crucial role in enabling effective structural damage detection through the PZT-based electromechanical admittance (EMA) method for complex structures. This study proposes a method for detecting damages in laminated rubber bearings through combined analysis of defect modes of periodic structures and EMA spectra. First, the periodic structure model of the laminated rubber bearing with periodically bonded PZT patches is established using spectral element method. Second, damage-induced defect modes within bandgaps are investigated through EMA spectra, revealing the correlation between defect mode frequencies, and both the location and severity rubber layer damage. Third, root mean square deviation is proposed to examine the influence of damage severity, location, and actuator location on bandgap defect modes. Numerical simulations demonstrate the effectiveness of the proposed method in accurately locating and quantifying damages in laminated rubber bearings.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119276"},"PeriodicalIF":6.3,"publicationDate":"2025-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Frequency-dependent elastic wave filtration and separation by hexagonal topological phononic crystals 频率相关的六方拓扑声子晶体弹性波过滤和分离

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-17 DOI: 10.1016/j.compstruct.2025.119289

Guifeng Wang , Yanhong Guan , Zhenyu Chen , Zhenhuan Zhou , Xinshen Xu , C.W. Lim , Weiqiu Chen

{"title":"Frequency-dependent elastic wave filtration and separation by hexagonal topological phononic crystals","authors":"Guifeng Wang , Yanhong Guan , Zhenyu Chen , Zhenhuan Zhou , Xinshen Xu , C.W. Lim , Weiqiu Chen","doi":"10.1016/j.compstruct.2025.119289","DOIUrl":"10.1016/j.compstruct.2025.119289","url":null,"abstract":"<div><div>Ascribe to the research significance and great application potential of elastic wave manipulation, the topological phononic crystals with peculiar functions in robust waveguiding have attracted enormous research attention. High-dimensional, higher-order, multifunctional, intelligent, and multi-frequency topological structures are expected to be a prominent research focus in the coming decades, while grand challenges still exist in designing such devices. In this regard, this paper presents a hexagonal lattice structure with six internally connected cylinders. Utilizing the accidental Dirac cones, the separate control of closing/opening and topological phases of three bandgaps at different frequencies is achieved. The subsequent parametric analyses reveal the whole picture of valley Chern numbers variation in the parametric space, which helps summarize the design principles of frequency-dependent topologically protected interface modes. Several superstructures consisting of two types of unitcells are then constructed to achieve the waveguiding in a straight path and frequency-dependent wave filtration. Consequently, introducing more types of unitcells can form interfaces that support waveguiding at different frequencies, leading to the realization of frequency-dependent wave separation and demultiplex. The presented work in this paper not only offers a novel design for multi-frequency wave separation and filtration but also inspires further explorations in multi-functional integrated elastic wave processors.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119289"},"PeriodicalIF":6.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconfigurable metamaterial honeycomb sandwich panels based on embedded tube Helmholtz resonators 基于内嵌管亥姆霍兹谐振器的可重构超材料蜂窝夹层板

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-17 DOI: 10.1016/j.compstruct.2025.119290

Hui Wang , Yaxiang Sun , Xin Lan , Hanxing Zhao , Yong-Hua Yu , Weichun Huang , Yanju Liu , Jingsong Leng

{"title":"Reconfigurable metamaterial honeycomb sandwich panels based on embedded tube Helmholtz resonators","authors":"Hui Wang , Yaxiang Sun , Xin Lan , Hanxing Zhao , Yong-Hua Yu , Weichun Huang , Yanju Liu , Jingsong Leng","doi":"10.1016/j.compstruct.2025.119290","DOIUrl":"10.1016/j.compstruct.2025.119290","url":null,"abstract":"<div><div>Acoustic metamaterials depend on the geometry and spatial distribution of their microstructure, which is difficult to change without an external mechanical load after manufacturing, which limits their application in complex mechanical environments. Based on the sound insulation mechanism of traditional Helmholtz resonators, the resonant frequency of embedded tube Helmholtz resonators is theoretically deduced in this paper, and the regulatory relationship between the structural parameters and their acoustic characteristics (transmission loss) is derived. Then, using the shape memory effect of the shape memory polymers (SMPs), reconfigurable embedded tube Helmholtz resonators with various temporary configurations are designed. On this basis, reconfigurable metamaterial honeycomb sandwich panels with reconfigurable microstructures and adjustable macroacoustic performance are further constructed. Through simulations and experiments, the excellent sound insulation performance of reconfigurable metamaterial honeycomb sandwich panels in different configurations is verified. In addition, the sound insulation performance of honeycomb sandwich panels with the same arc length but different wave numbers and different bottom configurations is analysed in detail. This study plays an important role in guiding the application of acoustic metamaterials in complex mechanical environments.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119290"},"PeriodicalIF":6.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144125263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of water absorption on the mechanical and morphological properties of date palm leaf fiber-reinforced polymer composites 吸水率对枣椰叶纤维增强聚合物复合材料力学和形态性能的影响

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-17 DOI: 10.1016/j.compstruct.2025.119286

Elsadig Mahdi , Daniel R.H. Ochoa , Ashkan Vaziri , Aswani K. Bandaru , Pavan K.A.V. Kumar , Aamir Dean

{"title":"Effects of water absorption on the mechanical and morphological properties of date palm leaf fiber-reinforced polymer composites","authors":"Elsadig Mahdi , Daniel R.H. Ochoa , Ashkan Vaziri , Aswani K. Bandaru , Pavan K.A.V. Kumar , Aamir Dean","doi":"10.1016/j.compstruct.2025.119286","DOIUrl":"10.1016/j.compstruct.2025.119286","url":null,"abstract":"<div><div>The growing demand for sustainable and biodegradable materials has led to increasing interest in using natural fibers as reinforcements in polymer composites. Among these, date palm leaf fibers (DPLFs), an abundant agricultural byproduct in the Middle East, show promise due to their favorable mechanical characteristics. This study investigates the effects of water absorption on the mechanical and morphological properties of DPLF-reinforced polymer (DPLFRP) composites to assess their viability in moisture-prone environments. Five types of DPLFs (Nabtat-seyf, Sultana, Barhee, Sukkary, and Khalasah) were extracted, characterized morphologically using scanning electron microscopy (SEM), and fabricated into unidirectional epoxy-based laminates via hand layup. Mechanical performance was assessed through tensile testing before and after 48 hrs of water immersion. Morphological changes and water uptake behavior were also examined. The results show that Nabtat-seyf exhibited the highest tensile strength (100.58 ± 7.95 MPa) and modulus (6.16 ± 0.85 GPa) among the DPLFs. Water absorption led to a reduction in tensile strength and modulus of DPLFRP composites by 39–47% and 21–32%, respectively. SEM analysis revealed microstructural damage mechanisms such as fiber–matrix debonding, fiber swelling, and matrix cracking. The specific tensile modulus and strength also declined significantly with increased moisture content. These findings suggest that while DPLFs, especially Nabtat-seyf, have high potential as reinforcement in biocomposites, water absorption presents a major challenge. Applications include automotive interior components, construction panels, and low-load structural elements, provided moisture barriers or fiber treatments are applied for durability enhancement.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119286"},"PeriodicalIF":6.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090700","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel FFT-based micromechanical modeling approach for the fracture behavior of a composite core in metal sandwich plates using a cohesive zone model 基于fft的金属夹层复合材料岩心断裂微观力学模型研究

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-05-17 DOI: 10.1016/j.compstruct.2025.119231

Felix Bödeker , Anders Biel , Ramin Moshfegh , Stephan Marzi

{"title":"A novel FFT-based micromechanical modeling approach for the fracture behavior of a composite core in metal sandwich plates using a cohesive zone model","authors":"Felix Bödeker , Anders Biel , Ramin Moshfegh , Stephan Marzi","doi":"10.1016/j.compstruct.2025.119231","DOIUrl":"10.1016/j.compstruct.2025.119231","url":null,"abstract":"<div><div>Hybrix<sup>TM</sup> sandwich plates (Lamera AB, Gothenburg, Sweden) with metal face sheets could replace standard metal plates in many lightweight applications. Their composite core, which is crucial for the structural performance and the fracture behavior of the whole plate, consists of polymer fibers and binder, and a large amount of porosity. In this work, a novel micromechanical modeling approach for the fracture behavior of the composite core is presented, which could allow for a faster and improved design process for novel configurations of the plates. The modeling approach involves a novel method for the generation of virtual models for the complex microstructure of the core and our recently developed theoretical framework of an FFT-based computational homogenization scheme for cohesive zones. Furthermore, the parameters of the elastic–plastic material model including a non-local, ductile damage model were identified using microindentation experiments and mode I tests (Double Cantilever Beam). The novel modeling approach, along with the FFT-based homogenization scheme for cohesive zones, was also experimentally validated using mode III tests (Split Cantilever Beam) and a corresponding Finite Element simulation.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"368 ","pages":"Article 119231"},"PeriodicalIF":6.3,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144134056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0