Composite Structures最新文献_第9页

Biomimetic polypropylene-carbon intra-ply hybrid 3D woven composite with enhanced impact resistance 增强抗冲击性能的仿生聚丙烯-碳复合三维编织复合材料

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-23 DOI: 10.1016/j.compstruct.2025.119177

Anna Weatherburn , Callum Montgomery , George Scott , Calvin Ralph , John Girkin , Cormac McGarrigle , Alistair McIlhagger , Edward Archer , Stefan Szyniszewski

{"title":"Biomimetic polypropylene-carbon intra-ply hybrid 3D woven composite with enhanced impact resistance","authors":"Anna Weatherburn , Callum Montgomery , George Scott , Calvin Ralph , John Girkin , Cormac McGarrigle , Alistair McIlhagger , Edward Archer , Stefan Szyniszewski","doi":"10.1016/j.compstruct.2025.119177","DOIUrl":"10.1016/j.compstruct.2025.119177","url":null,"abstract":"<div><div>In this study, a nacre-inspired carbon-polypropylene 3D woven composite is developed. The biomimetic ‘brick-and-mortar’ design is implemented by interlacing softer polypropylene yarns with brittle carbon fibres. This novel composite was benchmarked against a standard carbon fibre 3D woven composite with identical weave architecture, examining tensile properties, impact resistance, and shear strength. The comparative analysis was supported by micrographs and <span><math><mi>μ</mi></math></span>CT scans. Results showed that the hybrid composite absorbed 16% more impact energy in the weft direction than its purely carbon counterpart. The presence of polypropylene yarns increased crimp within the weave contributing to reduced tensile and shear properties. The study identifies the bulk factor of polypropylene yarns as critical in minimising crimp and structural flaws in the hybrid design. In summary, this work presents a nature-inspired hybrid composite, with an increased impact resistance but with trade-offs in tensile and shear properties.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119177"},"PeriodicalIF":6.3,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903750","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

Reinforcing shell elements for fiber-reinforced composites undergoing large deformations and general motion 用于承受大变形和大运动的纤维增强复合材料的加固壳体元件

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-22 DOI: 10.1016/j.compstruct.2025.119195

Yanhu Li , Yongjie Lu , Jibo Song , Linao Zhang

{"title":"Reinforcing shell elements for fiber-reinforced composites undergoing large deformations and general motion","authors":"Yanhu Li , Yongjie Lu , Jibo Song , Linao Zhang","doi":"10.1016/j.compstruct.2025.119195","DOIUrl":"10.1016/j.compstruct.2025.119195","url":null,"abstract":"<div><div>Fiber-reinforced composites offer excellent mechanical properties and lightweight advantages in multibody systems. However, their significant anisotropy and geometrical and material nonlinearities present challenges for accurate modeling and simulation. In this paper, two new types of reinforcing shell elements are developed within the Absolute Nodal Coordinate Formulation framework. The first type assumes that each fiber behaves as an Euler beam with only tensile and bending stiffness, making it suitable for simulating reinforcing fibers with arbitrary orientations and nonuniform materials and cross-section areas. The second type employs elastic force formulation based on Kirchhoff–Love theory or continuum mechanics. It is suitable for simulating reinforcing fibers that appear in a layered form with unique orientation, material, and cross-section area. The fibers and matrix are described independently in these new reinforcing elements, coupled through consistent deformation compatibility conditions. This approach allows different material models and element formulations for the fibers and matrix to be used. Furthermore, multiple fibers (or layers) can be embedded within a single reinforcing shell element, providing more accurate representations of the actual physical structure. The effectiveness of the developed reinforcing elements is validated through several benchmark problems. Numerical results demonstrate that both types of reinforcing shell elements are locking-free and can automatically capture the reinforcing effects of the fibers and the coupled deformation modes. This investigation enriches the element library of the Absolute Nodal Coordinate Formulation and provides an effective tool for the accurate simulation and optimal design of fiber-reinforced composites in multibody systems.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119195"},"PeriodicalIF":6.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867943","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

Design and analysis of the thick-wall cylindrical origami metamaterials based on tessellation principles 基于镶嵌原理的厚壁圆柱形折纸超材料设计与分析

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-22 DOI: 10.1016/j.compstruct.2025.119182

Zihang Ma , Keyao Song , Jaehyung Ju , Yongbin Wang , He Jia , Xiang Zhou

{"title":"Design and analysis of the thick-wall cylindrical origami metamaterials based on tessellation principles","authors":"Zihang Ma , Keyao Song , Jaehyung Ju , Yongbin Wang , He Jia , Xiang Zhou","doi":"10.1016/j.compstruct.2025.119182","DOIUrl":"10.1016/j.compstruct.2025.119182","url":null,"abstract":"<div><div>Origami structures with embedded creases provide predesigned deformed paths that could enhance the mechanical properties upon loading. Nature has provided hints from the cross-section of the hexagon-filled tessellation pattern of the bamboo and the porous protective layer of the pomelo peel, but the design method of the mechanical metamaterials that combines both energy absorption and protection capacities remains unknown. Inspired by this, the novel design method of the thick-wall cylindrical origami-based metamaterials (TCOM) derived from different tessellation patterns is provided, and both capacities are studied under two loading cases. The main parameters, such as layer heights ranging from <span><math><mrow><mn>5</mn><mspace></mspace><mi>mm</mi></mrow></math></span> to <span><math><mrow><mn>10</mn><mspace></mspace><mi>mm</mi></mrow></math></span> and rotation angles of 1°, 3°, and 5°, are varied to investigate their influence on these two capacities. The results show that these two capacities are generally incompatible, and the mixed polygon tessellation patterns stand out. We found that the specific energy absorption (SEA) capacity could be inversely programmable from the parametric study results, hence an optimization method based on the Gaussian Process Regression is provided as a design tool by a simple input of a user-preferred SEA value, hence providing a programmable energy-absorption capacity design tool for the future applications of the cylindrical origami-based mechanical metamaterials. The research here sheds light on the effects of tessellation design principles on origami-based mechanical metamaterial design.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119182"},"PeriodicalIF":6.3,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876951","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

Microstructural shape optimization method for natural vibration design of laminated porous shell structures 层合多孔壳结构自振设计的微结构形状优化方法

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-21 DOI: 10.1016/j.compstruct.2025.119184

Ayu Kamiya , Masatoshi Shimoda , Musaddiq Al Ali

{"title":"Microstructural shape optimization method for natural vibration design of laminated porous shell structures","authors":"Ayu Kamiya , Masatoshi Shimoda , Musaddiq Al Ali","doi":"10.1016/j.compstruct.2025.119184","DOIUrl":"10.1016/j.compstruct.2025.119184","url":null,"abstract":"<div><div>In this paper, we propose an optimization method for designing the microstructural geometry of a laminated shell structure to maximize its vibration eigenvalue. The material properties of the porous components are determined using the homogenization method, resulting in multiple homogenized elastic tensors and densities, which are applied to the corresponding subdomains of the laminated shell structure. To avoid the issue of repeated eigenvalues, we introduce the KS (Kreisselmeier and Steinhauser) function during the maximization process. We formulate the area-constrained microstructure optimization as a distributed-parameter optimization problem, deriving the shape gradient function theoretically using the Lagrange multiplier method, the adjoint variable method and the material derivative method. The microstructures are then optimized with the H<sup>1</sup> gradient method utilizing the derived shape gradient function. The effectiveness of the proposed method is verified through numerical examples. Numerical results demonstrate that the optimized microstructural shapes lead to increased vibration eigenvalues. Also, in order to confirm the validity of the optimization results obtained by numerical calculation, prototypes that combine removal processing using a laser and additive processing using adhesive are fabricated, and experimental evaluations are performed.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"367 ","pages":"Article 119184"},"PeriodicalIF":6.3,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908138","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

Quasi-static compression and impact resistances of novel re-entrant chiral hybrid honeycomb structures 新型可重入手性杂化蜂窝结构的准静态压缩和抗冲击性能

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-21 DOI: 10.1016/j.compstruct.2025.119206

Z.H. Xu , Y.J. Cui , K.F. Wang , B.L. Wang , B. Wang

{"title":"Quasi-static compression and impact resistances of novel re-entrant chiral hybrid honeycomb structures","authors":"Z.H. Xu , Y.J. Cui , K.F. Wang , B.L. Wang , B. Wang","doi":"10.1016/j.compstruct.2025.119206","DOIUrl":"10.1016/j.compstruct.2025.119206","url":null,"abstract":"<div><div>Negative Poisson’s ratio metamaterials have excellent energy absorption performance and have been widely used in impact protection structures. The re-entrant hexagonal honeycomb (TRH) is one typical and widely used metamaterial. However, the TRH has drawbacks of insufficient stiffness and unstable deformation. This paper combines the traditional re-entrant cell with a chiral cell to form re-entrant chiral hybrid cells (RCEs) to further improve the mechanical properties of TRH. By arranging the intercellular connectors and RCEs with different patterns, four novel negative Poisson’s ratio honeycomb structures (RCH-1, RCH-2, RCH-3 and RCH-4) are proposed. The in-plane quasi-static compression characteristic of TRH and RCH-4 are investigated through experiments and simulations. Effects of the honeycomb type, the cell wall’s thickness, the chiral ring’s radius, the impact direction and velocity on impact resistance are evaluated. It’s found that the introduction of chiral ring not only has a supportive effect on the inclined cell walls also enhances the deformation stability and load-bearing capacity of RCEs. Reducing the radius of chiral ring within a certain range can enhance the impact resistance of the proposed honeycomb structures. Properly increasing the cell wall’s thickness can improve the impact resistance of honeycomb structures. It is observed that the RCH-4 has the highest plateau stress, elastic modulus, specific energy absorption and the most stable deformation pattern under vertical impact. In the case of lateral impact, the RCH-2 has the highest specific energy absorption. At different impact velocities, the specific energy absorptions of the proposed honeycomb structures are higher than that of TRH.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119206"},"PeriodicalIF":6.3,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143867944","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

Radial compression of thin-walled variable-angle tow filament-wound composite cylinders, Part I: Manufacture, experimental, and computational analyses in the linear-elastic regime 薄壁变角束丝缠绕复合圆柱体的径向压缩，第1部分：在线弹性状态下的制造、实验和计算分析

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-19 DOI: 10.1016/j.compstruct.2025.119178

Gabriel Sales Candido Souza , Anderson Lima dos Santos , Maísa Milanez Ávila Dias Maciel , Rui Miranda Guedes , Nuno Viriato , Sandro Campos Amico , Volnei Tita

{"title":"Radial compression of thin-walled variable-angle tow filament-wound composite cylinders, Part I: Manufacture, experimental, and computational analyses in the linear-elastic regime","authors":"Gabriel Sales Candido Souza , Anderson Lima dos Santos , Maísa Milanez Ávila Dias Maciel , Rui Miranda Guedes , Nuno Viriato , Sandro Campos Amico , Volnei Tita","doi":"10.1016/j.compstruct.2025.119178","DOIUrl":"10.1016/j.compstruct.2025.119178","url":null,"abstract":"<div><div>This work presents a computational-experimental investigation into the radial compression behavior of thin-walled variable-angle tow filament-wound composite cylinders in the linear-elastic regime. The manufacturing details are outlined with the variable-angle configuration achieved by subdividing the cylinder into several annular regions, each with a constant fiber angle. The experiments aim to describe the mechanical behavior of these structures in terms of stiffness and to obtain strain fields using digital image correlation. Two sample types with the same diameter are studied: cylinders with lengths of 150 mm and 200 mm. For the 150 mm cylinders, strain fields are captured along the entire length, whereas, for the 200 mm cylinders, the region of interest is reduced to a single triangular subunit of the mosaic pattern. This approach allowed for the observation of both global and local strain field trends, with finite element model results compared to experimental data. The computational model was validated with good results, which were then used to simulate cases of cylinders with stress concentrators, which are investigated in Part II, predicting the onset of failure using Hashin’s failure criteria.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119178"},"PeriodicalIF":6.3,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898832","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

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-17 DOI: 10.1016/j.compstruct.2025.119176

Xiaomei Huang, Yun Chen, Liang Hou, Congmin Miao, Yuan Li

{"title":"Stress-related multi-material structures topology optimization with gradient interfaces","authors":"Xiaomei Huang, Yun Chen, Liang Hou, Congmin Miao, Yuan Li","doi":"10.1016/j.compstruct.2025.119176","DOIUrl":"10.1016/j.compstruct.2025.119176","url":null,"abstract":"<div><div>Aerospace components, such as turbine disks, endure complex loads and extreme thermal conditions. Stress-related multi-material topology optimization (MMTO) allows for the superior performance design of these components. Additionally, most studies on MMTO focus on continuous or single-gradient interfaces, multi-gradient design remains largely unexplored. This study proposes a stress minimization topology optimization method for multi-material structures with gradient interfaces. A multi-gradient material interpolation is established based on the standard solid isotropic material with penalization (SIMP) method and piecewise Heaviside projection, and the quantity and properties of gradient materials are defined by the gradient ratios of parent materials. Notably, the proposed method requires only a single set of density variables. The global stress is evaluated using the p-norm function, and element sensitivity is calculated with the adjoint method. Design variables are filtered. Turbine disk and L-bracket examples are presented to validate the effectiveness of the proposed approach. The results demonstrate that multi-material structures with gradient interfaces can be effectively described and optimized. The quantity and mechanical properties of gradient materials can be precisely defined. The maximum stress in single-gradient and double-gradient structures is lower than that in non-gradient structures, indicating that topology design with gradient interfaces enhances structural strength. The proposed method effectively reduces the stress level by distributing multi-gradient materials across multi-material interfaces.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"365 ","pages":"Article 119176"},"PeriodicalIF":6.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847755","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

Exact solutions for the linear hardening elastoplastic model in functionally graded spherical shell 功能梯度球壳线性硬化弹塑性模型的精确解

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-17 DOI: 10.1016/j.compstruct.2025.119208

Jun Xie , Xiaofan Gou , Pengpeng Shi

{"title":"Exact solutions for the linear hardening elastoplastic model in functionally graded spherical shell","authors":"Jun Xie , Xiaofan Gou , Pengpeng Shi","doi":"10.1016/j.compstruct.2025.119208","DOIUrl":"10.1016/j.compstruct.2025.119208","url":null,"abstract":"<div><div>As functionally graded materials (FGMs) technology advances, there has been a growing emphasis on the mechanical analysis of FGMs structures. Exceeding the yield strength in FGMs structures often leads to irreversible plastic deformation in localized regions under applied loads. An analysis of the linear hardening elastoplastic model is necessary to assess accurately the load-carrying capacity of these structures. It is assumed that the elastic modulus of FGMs spherical shell varies with the thickness distribution of the structure according to a power function. This paper provides the exact solutions for the linear hardening elastoplastic model in the FGMs spherical shell under mechanical loads, including purely elastic, partially plastic, and fully plastic deformation states. The elastoplastic theory is employed to analyze the linear hardening elastoplastic model, and each deformation state is thoroughly analyzed. A significant contribution of this research is the presentation of comprehensive exact solutions for the linear hardening elastoplastic model in FGMs spherical shell, addressing all deformation regions. The findings demonstrate that the radial variation in material properties significantly influences the elastoplastic model analysis of the FGMs spherical shell. These conclusions are expected to aid in the design of FGMs spherical shells to mitigate yielding under high circumferential stress.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"366 ","pages":"Article 119208"},"PeriodicalIF":6.3,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143859338","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

Energy absorber inspired by spider webs 受蜘蛛网启发的能量吸收器

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-15 DOI: 10.1016/j.compstruct.2025.119160

Koray Yavuz , Seymur Jahangirov , Recep M. Gorguluarslan

引用次数: 0

Ultra-high temperature mechanical behavior and microstructural evolution of needle-punched carbon/carbon composites under time-varying thermo-mechanical coupling conditions 时变热-力耦合条件下针刺碳/碳复合材料的超高温力学行为及显微组织演化

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-04-15 DOI: 10.1016/j.compstruct.2025.119192

Boyi Wang, Songhe Meng, Bo Gao, Kunjie Wang, Chenghai Xu

{"title":"Ultra-high temperature mechanical behavior and microstructural evolution of needle-punched carbon/carbon composites under time-varying thermo-mechanical coupling conditions","authors":"Boyi Wang, Songhe Meng, Bo Gao, Kunjie Wang, Chenghai Xu","doi":"10.1016/j.compstruct.2025.119192","DOIUrl":"10.1016/j.compstruct.2025.119192","url":null,"abstract":"<div><div>Carbon/carbon (C/C) composites are extensively employed in the thermal protection systems of hypersonic vehicles, and the precise acquisition of critical process information is vital for the reliable design of such vehicles. Consequently, this research introduces a high-temperature repeated loading testing protocol for needle-punched C/C composites, aimed at characterizing the mechanical behavior of re-entry vehicles in intricate thermal–mechanical coupling environments. Initially, an ultra-high-temperature speckle pattern was prepared using plasma spraying and laser etching techniques, which is suitable for the temperature range of this study (room temperature to 2000 °C). Subsequently, under time-varying temperature and load conditions, the local strain field and tensile properties were investigated. In the single-loading test, at 1500 °C, the stress–strain curve slope decreased by up to 58 %. In the cyclic loading test, at 2000 °C, the slope increased by up to 46 % with the number of cycles, while the specimen strength decreased by up to 27.1 % compared to the standard test. By examining fracture morphology and internal structure at both macroscopic and microscopic scales, the study elucidated how interfacial performance and the level of graphitization contribute to the tensile behavior. The results indicate that as the number of loading cycles increases, the stress–strain curve slope is primarily influenced by interfacial properties and carbon fiber graphitization, with each playing a dominant role at different loading stages. Additionally, tensile strength decreases with the rise in loading cycles, positively correlating with interfacial performance and inversely with carbon fiber graphitization.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"365 ","pages":"Article 119192"},"PeriodicalIF":6.3,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143847754","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