Composite Structures最新文献

{"title":"Static behavior of multilayered magneto-electro-elastic doubly curved spherical shells: A new analytical 3D solution","authors":"F.P. Ewolo Ngak ,&nbsp;G.E. Ntamack ,&nbsp;L. Azrar ,&nbsp;K. Alnefaie","doi":"10.1016/j.compstruct.2025.119457","DOIUrl":"10.1016/j.compstruct.2025.119457","url":null,"abstract":"<div><div>In this paper a new formalism generalizing the well-known Stroh formalism is developed to predict the static response of multilayered magneto-electro-elastic (MEE) doubly curved spherical shells under simply supported lateral edges boundary conditions. The proposed approach can be reduced to the multilayered straight plate approach by tending the curvature radius to infinity and using the Taylor’s series expansion. The solution is derived in each layer of the shell and the eigenvalues and eigen vectors problem are then obtained. After solving the resulting eigenvalues and eigen vectors problem, the solution is propagated from the bottom layer to the top layer of the multilayered shell utilizing the elaborated propagator matrix method. Several benchmarks’ results have been carried out using the piezoelectric (PE) material BaTiO₃ and piezomagnetic (PM) material CoFe₂O₄. According to those results, the stacking sequences and the kind of loading widely influence the bending responses of the multilayered MEE spherical shells.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119457"},"PeriodicalIF":6.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679381","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}

{"title":"Interphase model for computational homogenization of short fibers reinforced composites with imperfect interfaces","authors":"Xingshuai Zheng,&nbsp;Dabiao Lu,&nbsp;Jixing Zhou,&nbsp;Yu'ang Zhang,&nbsp;Huan Liu,&nbsp;Pingmei Ming,&nbsp;Shen Niu,&nbsp;Ge Qin","doi":"10.1016/j.compstruct.2025.119456","DOIUrl":"10.1016/j.compstruct.2025.119456","url":null,"abstract":"<div><div>This paper predicts the effective elastic properties of short fiber reinforced composites with imperfect interfaces by the Finite Element (FE) homogenization method. The imperfect interfaces between the fibers and matrix are modeled as thin interphases. A Representative Volume Element (RVE) consisting of the fibers, matrix and interphases, is constructed by the modified Random Sequential Absorption (RSA) algorithm. The simulation results validate that the interphase model combined with the FE homogenization approach, can reliably assess the effective elastic properties of short fiber reinforced composites with imperfect interfaces. Meanwhile, the interphase model can accurately approximate the Linear Spring Model (LSM) and Interface Stress Model (ISM), respectively, in a specific range of the elastic modulus ratio. The influence of the interphase Poisson’s ratio on the overall elastic properties of composites is neglectable. Furthermore, the influence of the interphase elastic modulus and shear modulus on the effective elastic properties of composites becomes more pronounced as the interphase thickens from 50 nm to 500 nm. This paper provides a straightforward and practical method for predicting the effective elastic properties of short fiber reinforced composites with imperfect interfaces.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119456"},"PeriodicalIF":6.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571114","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}

{"title":"Assembled suture multi-cell structures with enhanced interlocking and tailored energy absorption","authors":"Huijing Gao,&nbsp;Yisen Liu,&nbsp;Qianbing Tan,&nbsp;Yanni Rao,&nbsp;Yong Peng,&nbsp;Kui Wang","doi":"10.1016/j.compstruct.2025.119467","DOIUrl":"10.1016/j.compstruct.2025.119467","url":null,"abstract":"<div><div>In this study, the suture structure was designed as the connection joint to improve mechanical interlocking capability and crashworthiness of assembled multi-cell structures. The failure mechanisms and mechanical properties of three suture interfaces were investigated by tensile tests. The suture interface with the best mechanical properties was selected as the connection joint for assembled multi-cell tubes. Quasi-static compression experiments showed that the multi-cell tube assembled with suture joints exhibited high synergy and effectively avoided the risk of tube splashing during compression. The specific energy absorption and crushing force efficiency of the assembled four-cell tube were increased by 65.8 % and 49.9 % compared to corresponding discrete tube, respectively. Based on the simplified super folding element theory and taking into account the variations in folding elements caused by suture joints, a theoretical model was established to predict the mean crushing force of assembled suture n × n-cell tube. The theoretical predictions were in good agreement with experimental studies. This study offered the potential for energy absorbers to on-demand customize their dimensions and crashworthiness to adapt to various collision environments.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119467"},"PeriodicalIF":6.3,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571439","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}

{"title":"Investigations on the failure mechanism of UHPC- aluminum honeycomb sandwich beams under three-point bending","authors":"Zheng Li ,&nbsp;Ziping Lei ,&nbsp;Zhaijun Lu ,&nbsp;Jiefu Liu ,&nbsp;Feng Gao ,&nbsp;Hao Di","doi":"10.1016/j.compstruct.2025.119431","DOIUrl":"10.1016/j.compstruct.2025.119431","url":null,"abstract":"<div><div>To broaden the application of lightweight honeycomb-like structures in civil engineering, this study presents a novel sandwich structure composed of Ultra-High-Performance Concrete (UHPC) face sheets and an aluminum honeycomb core. This study investigates the flexural behavior of UHPC-aluminum honeycomb sandwich beams under three-point bending to elucidate the loading capacity and failure mechanisms. Results reveal that the proposed UHPC-honeycomb sandwich construction exhibits significantly enhanced load-bearing capacity and bending stiffness compared to solid UHPC beams of equivalent mass. this research elucidates the influence of the face sheet-core strength ratio on the resulting failure mode. A high face sheet-core strength ratio promotes local buckling failure, while a low ratio leads to bending failure. An Optimal strength ratio facilitates shear failure, maximizing the structure’s energy absorption capability.Finally, the comparison on different interface connections, shear studs and adhesive bonding, in terms of failure performance is also investigated.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119431"},"PeriodicalIF":6.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571113","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}

{"title":"Quasi-Static radial loading behavior and structural optimization of carbon fiber-reinforced stainless steel tubes","authors":"Hong Zhang ,&nbsp;Lei Cao ,&nbsp;Hongyuan Zhou ,&nbsp;Guangyan Huang ,&nbsp;Mengqi Yuan ,&nbsp;Han Liu","doi":"10.1016/j.compstruct.2025.119442","DOIUrl":"10.1016/j.compstruct.2025.119442","url":null,"abstract":"<div><div>Fiber-reinforced polymers (FRPs) effectively facilitate the lightweight design and load-bearing capacity of metal tubes in weapon systems. Most studies focus on systems combining glass fiber-reinforced polymer (GFRP), carbon fiber-reinforced polymer (CFRP), and aluminum (Al), primarily under axial loading, while research on steel-based components under radial loading remains limited. This study explores the quasi-static radial mechanical response of carbon fiber-reinforced stainless steel tubes (CFR-SSTs) and optimizes their winding angles and layer numbers. Experimental results show that CFR-SSTs with 8 layers wound at 90° exhibit the best radial load-bearing performance: under tensile loading, their modulus and strength are 21.8% and 63.2% higher than those of stainless steel liners, respectively; under compressive loading, the modulus increases by 33.1%, and specific energy absorption improves by 37.5%. Finite element simulations show a nonlinear increase in radial load capacity with additional layers. Finally, considering both cost-effectiveness and radial tensile-compressive performance, CFR-SSTs with 24 layers wound at 90° are identified as the optimal radial load-bearing configuration. This study develops a layered optimization framework for radial load-bearing CFR-SSTs, offering practical guidelines to advanced lightweight, multifunctional steel-based composite weapon system.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119442"},"PeriodicalIF":6.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563301","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}

{"title":"A smoothed Zig-Zag plate finite element for the analysis of laminated composite plates","authors":"Vinícius de Barros Souza ,&nbsp;Nicholas Fantuzzi ,&nbsp;Humberto Breves Coda","doi":"10.1016/j.compstruct.2025.119412","DOIUrl":"10.1016/j.compstruct.2025.119412","url":null,"abstract":"<div><div>This paper presents an alternative plate finite element to simulate the mechanical behavior of laminated composite plates using the Positional Finite Element Method (PFEM). Based on the Zig-Zag Theory (ZZT), a Reissner–Mindlin kinematics is enhanced with piecewise linear functions of in-plane displacement, creating a zig-zag profile across the thickness. Cauchy’s theorem and the longitudinal equilibrium of layers are applied to enforce the interlaminar continuity of transverse shear stresses. The resulting shear strain field is integrated along the thickness, leading to a piecewise third-order displacement function that replaces the former linear profile. The proposed kinematics, named Smoothed Zig-Zag Theory (SZZT), is layer-independent and can be calibrated to better fit the problem. A cubic-order plate finite element with ten degrees of freedom per node is formulated based on SZZT to directly predict through-the-thickness displacements and stresses in laminated plate structures. Different configurations of isotropic and orthotropic cross-ply laminated plates are investigated. The static response of SZZT is compared with exact solutions and finite element results available in the literature.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119412"},"PeriodicalIF":6.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571112","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}

{"title":"Fatigue delamination growth in textile-reinforced plastics under combined interlaminar shear and compression: Numerical and experimental characterization","authors":"Carl H. Wolf ,&nbsp;Christian Düreth ,&nbsp;Michael Wünsche ,&nbsp;Sebastian Henkel ,&nbsp;Karsten Tittmann ,&nbsp;Maik Gude ,&nbsp;Horst Biermann","doi":"10.1016/j.compstruct.2025.119384","DOIUrl":"10.1016/j.compstruct.2025.119384","url":null,"abstract":"<div><div>In this work, the crack growth behavior of three textile-reinforced composites under the combined loading of interlaminar shear and through-thickness compression was investigated. Composites were manufactured by resin-transfer molding using three different plain weave carbon fiber textile reinforcements, all with the same carbon fiber roving but varying areal weights, to study the influence of ondulation on fatigue crack growth. Specimens with a hole-notch geometry were tested under four different static load superpositions of <span><math><mrow><msub><mrow><mi>F</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>=</mo><mn>0</mn><mo>.</mo><mn>0</mn><mo>,</mo><mspace></mspace><mn>0</mn><mo>.</mo><mn>5</mn><mo>,</mo><mspace></mspace><mn>1</mn><mo>.</mo><mn>0</mn><mspace></mspace><mtext>and</mtext><mspace></mspace><mn>2</mn><mo>.</mo><mn>0</mn><mspace></mspace><mstyle><mi>k</mi><mi>N</mi></mstyle></mrow></math></span>, corresponding to <span><math><mrow><msub><mrow><mi>σ</mi></mrow><mrow><mi>z</mi></mrow></msub><mo>=</mo><mn>0</mn><mo>.</mo><mn>0</mn><mo>,</mo><mspace></mspace><mn>2</mn><mo>.</mo><mn>0</mn><mo>,</mo><mspace></mspace><mn>4</mn><mo>.</mo><mn>0</mn><mspace></mspace><mtext>and</mtext><mspace></mspace><mn>8</mn><mo>.</mo><mn>0</mn><mspace></mspace><mstyle><mi>M</mi><mi>P</mi><mi>a</mi></mstyle></mrow></math></span>. Cyclic loading with a force ratio of <span><math><mrow><mi>R</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>1</mn></mrow></math></span> was applied with amplitudes of <span><math><mrow><msub><mrow><mi>F</mi></mrow><mrow><mi>x</mi><mo>,</mo><mtext>a</mtext></mrow></msub><mo>=</mo><mn>2</mn><mo>.</mo><mn>25</mn><mo>,</mo><mspace></mspace><mn>2</mn><mo>.</mo><mn>70</mn><mspace></mspace><mtext>and</mtext><mspace></mspace><mn>3</mn><mo>.</mo><mn>15</mn><mspace></mspace><mstyle><mi>k</mi><mi>N</mi></mstyle></mrow></math></span>. A modified digital image correlation method measured crack tip opening displacements to derive energy release rates. Furthermore, a Python-based numerical model simulated strain fields and fracture properties, validated against experimental strain data to ensure accuracy. The model also employed the <span><math><mi>J</mi></math></span>-integral method to independently compute energy release rates, verifying experimental assumptions and improving the understanding of fracture mechanisms in textile-reinforced composites. Both the optical measurement method and the model showed comparable results.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119384"},"PeriodicalIF":6.3,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144596696","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}

{"title":"Breakaway oxidation kinetics at ceramic–metal interfaces: A bidirectional diffusion–reaction framework for double-layered thermally grown oxides","authors":"Junxiang Gao ,&nbsp;Bo Yuan ,&nbsp;Weiao Song ,&nbsp;Xiaofeng Guo ,&nbsp;Jianxin Wang ,&nbsp;Shaofeng Wang","doi":"10.1016/j.compstruct.2025.119398","DOIUrl":"10.1016/j.compstruct.2025.119398","url":null,"abstract":"<div><div>The durability of thermal barrier coatings—a critical layered composite system in aero-engines and gas turbines—is governed by the evolution of thermally grown oxides (TGOs). This process transitions from the formation of protective alumina to the destabilizing growth of mixed oxides (e.g, Cr₂O₃), exhibiting abrupt growth rate and nonlinear oxidation kinetics. A novel bidirectional diffusion–reaction framework is presented to integrate oxygen and metal diffusion, large deformation mechanics, and multiphysics coupling for modeling TGO evolution. The framework comprehensively assesses the oxidation process, from alumina formation to Cr₂O₃ growth, elucidating critical phenomena including aluminum depletion thresholds, breakaway oxidation progression, and interfacial stress evolution. Validation against Hille’s and Evans’s methodologies, i.e., anion- and cation-dominant diffusion–reaction mechanisms, confirms the model’s accuracy. During inward oxidation, alumina grew 1.62 times faster in peaks than in troughs. Following the onset of breakaway oxidation, rapid Cr₂O₃ growth occurred with trough regions exhibiting growth rates 1.96 times higher than those at peak regions. Furthermore, the framework reveals how Cr₂O₃ formation exacerbates interfacial stresses through concentration dynamics during outward oxidation, inducing stress reversals and localized tensile peaks. By incorporating uneven TGO morphology and microstructural heterogeneity, the model provides insights into optimizing bond coat composition and composite architecture (e.g., graded layers or reactive element doping) to suppress breakaway oxidation and delay spallation.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119398"},"PeriodicalIF":6.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604253","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}

{"title":"Combined experimental–numerical approach for through-thickness unsaturated permeability characterization of deformable fiber-beds","authors":"M.A. Kabachi ,&nbsp;M. Sandberg ,&nbsp;P. Ermanni","doi":"10.1016/j.compstruct.2025.119396","DOIUrl":"10.1016/j.compstruct.2025.119396","url":null,"abstract":"<div><div>Successful implementation of Liquid Composite Molding processes relies on a thorough knowledge of the flow and fiber-bed behavior, with unsaturated permeability being a key parameter. This paper presents a combined experimental–numerical method for the characterization of unsaturated through-thickness permeability of deformable engineering textiles. The experimental procedure, developed in a previous study, is based on visual tracking, and recording of flow-front advancement and eventual flow-induced fiber-bed deformation. This information, along with material and injection parameters, is fed to a numerical dual-scale flow model implemented using a finite volume scheme. The model considers different aspects of the impregnation, namely macro and micro flows between and inside fiber bundles, capillary flow, and fiber-bed deformation. The macro and micro permeability curves are obtained through an inverse method that considers different experimental parameters. The method is successfully applied on a glass fiber Non-Crimped-Fabric, where permeability results satisfy all the employed processing and material conditions.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119396"},"PeriodicalIF":6.3,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556982","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}

{"title":"On experimental and numerical damage evolution of multi open-holes composite laminates with local to global method","authors":"Shu Li ,&nbsp;Yan Li ,&nbsp;Pengchao Wang ,&nbsp;Fei Han ,&nbsp;Zhaoyang Ma","doi":"10.1016/j.compstruct.2025.119397","DOIUrl":"10.1016/j.compstruct.2025.119397","url":null,"abstract":"<div><div>In this paper, multiple holes’ interaction effects on the progressive damage process and ultimate strength of T700/epoxy notched composite laminates under uniaxial tension are studied by experiment and the local to global (L2G) method. Failure mechanisms of multiple layup composite laminates with different hole distances and diameter ratios are analyzed, and the L2G’s predictions are in agreement with experimental results, which demonstrates the L2G has an excellent numerical capability to capture multiple damage modes in composite laminates. Moreover, it is found that multi holes composite laminates with reasonable hole spacing and diameter ratio have a higher strength than single-hole composite laminates, and the relationships between the ultimate strength and hole spacing/diameter ratio are also discussed.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"371 ","pages":"Article 119397"},"PeriodicalIF":6.3,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571116","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}