Composite Structures最新文献_第8页

Multi-scale finite element analysis of the strengthening and damage behavior of carbides with different characteristics in nickel-based superalloys

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118761

Qin Wang , Furong Liu , Jinxia Song , Yongwang Kang , Yuhong Wu , Dinggang Wang , Chengbo Xiao

{"title":"Multi-scale finite element analysis of the strengthening and damage behavior of carbides with different characteristics in nickel-based superalloys","authors":"Qin Wang , Furong Liu , Jinxia Song , Yongwang Kang , Yuhong Wu , Dinggang Wang , Chengbo Xiao","doi":"10.1016/j.compstruct.2024.118761","DOIUrl":"10.1016/j.compstruct.2024.118761","url":null,"abstract":"<div><div>This study proposes a novel multi-scale numerical approach to explore the mechanical behavior and damage evolution in nickel (Ni)-based superalloys containing various carbide particles. At the nanoscale, the elastic properties of two distinct carbides are determined using first-principles calculations. At the microscale, finite element simulations (FEM) in ABAQUS are used to analyze the stress–strain relationship and local stress distribution within a three-dimensional representative volume element, as well as damage and fracture behavior. The model integrates the elastic–plastic response of the Ni matrix, the elastic-brittle fracture of micro-scale carbides, and the interface behavior between carbide and matrix. FEM findings are consistent with tensile test data, indicating that skeletal carbide promotes plasticity while blocky carbide elevates strength. The interface between blocky carbide and matrix is susceptible to cracking. When the carbide is oriented at 45° to the load direction, offering a balance of strength and plasticity. Stress concentration is reduced when carbides are uniformly distributed and present in high-volume fractions. The damage evolution mechanism of nickel-based superalloy influenced by carbide is elucidated. The numerical method is well-suited for a thorough analysis of the comprehensive behavior of reinforced phase/metal-matrix composites.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118761"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161309","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

Shear stiffness model for an innovative Y-shaped connector with UHPC grout in composite structures

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118817

Yulong Ni , Menghan Hu , Zhenlei Jia , Qiang Han

{"title":"Shear stiffness model for an innovative Y-shaped connector with UHPC grout in composite structures","authors":"Yulong Ni , Menghan Hu , Zhenlei Jia , Qiang Han","doi":"10.1016/j.compstruct.2024.118817","DOIUrl":"10.1016/j.compstruct.2024.118817","url":null,"abstract":"<div><div>Precast concrete deck panels (PCDPs) with shear pockets offer several advantages to accelerate bridge construction. In this paper, a Y-shaped connector was proposed, which was placed intermittently in the ultra-high-performance concrete (UHPC) shear pockets of PCDPs in composite structures. To assess the shear behavior of the Y-shaped connector, push-out tests were performed by varying plate width and thickness, diameter of the penetrating rebar and perfobond hole, and type of grout. The load-slip curves, failure modes, strain analysis, and shear behaviors were investigated. Then, validated finite element (FE) models were established to investigate the relationship between the shear stiffness and number of perfobond holes. Finally, the shear stiffness model of the Y-shaped connector considering the end-bearing resistance of the UHPC was proposed. The test results show that the Y-shaped connector with UHPC grout has excellent shear performance compared to the specimen with normal concrete (NC) grout. The shear stiffness of the Y-shaped connector is greatly influenced by the effective width of the perfobond plate. The shear stiffness of the Y-shaped connector increases significantly with the number of perfobond holes. The analytical model has a precise prediction for the shear stiffness of the Y-shaped connector.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118817"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162087","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, experiment, and finite element analysis of bio-inspired novel 3D woven tubular composites

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118813

Fangfang Wen, Yongfang Qian, Yuan Gao, Xinghai Zhou, Lihua Lyu

{"title":"Design, experiment, and finite element analysis of bio-inspired novel 3D woven tubular composites","authors":"Fangfang Wen, Yongfang Qian, Yuan Gao, Xinghai Zhou, Lihua Lyu","doi":"10.1016/j.compstruct.2024.118813","DOIUrl":"10.1016/j.compstruct.2024.118813","url":null,"abstract":"<div><div>3D textile-structured tubular composites currently suffer from problems with single cross-sectional shapes and low energy absorption efficiency. To address the above problems, this study proposes a novel tubular structure inspired by the bamboo structure, characterized by a concentric nested structure of “double tubes & double ribs.” Bio-inspired novel 3D woven tubular composites (3D-WBBTC) with the above structures were prepared using the VARTM process, aiming to enhance the energy absorption of 3D woven tubular composites. The axial compression performance and energy absorption performance of 3D-WBBTC were studied using quasi-static axial compression tests and finite element numerical simulations. The results show that the specific energy absorption ranges from 7.41 to 11.59 J·g<sup>−1</sup> and compression force efficiency ranges between 0.50 and 0.75, significantly improved compared to traditional 3D woven tubular composites. The damage mode of 3D-WBBTC is a hybrid damage mode of “local buckling of the tube wall & partial folding of the ribs,” which includes debonding of the fiber-resin interface, different forms of fiber breakage, and peeling, shedding, and cracking of the resin. It provides a new approach to the innovative design of 3D woven tubular composites.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118813"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162089","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

Vibration of composite laminated airfoil-beam-structures of electric aircraft in hygrothermal environment: Theory formulation and experimental investigation

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118781

Jian Zang , Bang Chen , Xu-Yuan Song , Zhen Zhang , Ye-Wei Zhang , Li-Qun Chen

{"title":"Vibration of composite laminated airfoil-beam-structures of electric aircraft in hygrothermal environment: Theory formulation and experimental investigation","authors":"Jian Zang , Bang Chen , Xu-Yuan Song , Zhen Zhang , Ye-Wei Zhang , Li-Qun Chen","doi":"10.1016/j.compstruct.2024.118781","DOIUrl":"10.1016/j.compstruct.2024.118781","url":null,"abstract":"<div><div>Electric aircraft is an important development direction in the future aviation field, which greatly reduces the emissions of carbon dioxide and exhaust gases, and is an important way to achieve green aviation. As a typical element of the electric aircraft, the composite airfoil beam structure often operate in hygrothermal environments, which can affect the dynamic performance of the aircraft. This paper provides a method for the vibration of composite laminated airfoil beam structures (CLABSs) under the effect of complex circumstance through systematic theoretical and experimental research. The kinetic, potential and hygrothermal energies of CLABSs induced by the hygrothermal environment are derived by using Kirchhoff theory. To simulate the coupling between plates and the elastic support, a set of uniformly distributed springs is introduced. By employing a set of modified orthogonal polynomials, the dynamic equation for CLABSs is derived within the framework of the Rayleigh approach. The validity of the proposed method is then verified by finite element analysis and experiments investigation. Furthermore, the discussion includes the vibration properties of CLABSs at varying connecting spring stiffnesses, hygrothermal circumstance, and some effective conclusions are drawn, which provide an effective computational method for the vibration analysis and optimization for composite airfoil beam structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118781"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160965","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

Influence of ply thickness on transverse cracking onset, damage progression in thin ply composites and impact on mechanical performance

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118827

Uday Kiran Balaga , Verena Gargitter , Shridhar Yarlagadda , Dirk Heider , Roger Crane , John Tierney , Suresh G. Advani

{"title":"Influence of ply thickness on transverse cracking onset, damage progression in thin ply composites and impact on mechanical performance","authors":"Uday Kiran Balaga , Verena Gargitter , Shridhar Yarlagadda , Dirk Heider , Roger Crane , John Tierney , Suresh G. Advani","doi":"10.1016/j.compstruct.2024.118827","DOIUrl":"10.1016/j.compstruct.2024.118827","url":null,"abstract":"<div><div>Composite structures employing thin ply materials have gained significant attention in aerospace and high-performance applications. These materials offer the potential for improved mechanical performance and enhanced resistance to damage compared to composite laminates with thicker plies due to the added transverse strength that can potentially reduce microcracking. However, in quasi-isotropic layup structures, stress concentrations may develop due to the irregular arrangement of the individual layers stacked up in different orientations, leading to various forms of damage initiation and progression. The type and direction of loading, as well as factors such as ply thickness and ply stacking orientation play critical roles in this configuration. Recent studies have demonstrated the ability of thin ply laminated composites to mitigate damage progression, such as transverse micro-cracking, structural delamination’s, and splitting under static, fatigue and impact loadings. This work investigates and quantifies the damage characteristics in carbon fiber/toughened epoxy thin-ply laminates with single ply thicknesses of 70 µm for different laminate sequences under quasi static loading conditions. The results show that addition of thin plies within the composite laminate enhanced the mechanical performance. This improvement is achieved by reducing the damage progression in the thicker plies as a result of the suppression of transverse crack intensity.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118827"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160977","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

Are sutural structures in biology the optimal topological design?

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118825

Junhao Wu , Baoshou Liu , Yinan Cui

{"title":"Are sutural structures in biology the optimal topological design?","authors":"Junhao Wu , Baoshou Liu , Yinan Cui","doi":"10.1016/j.compstruct.2024.118825","DOIUrl":"10.1016/j.compstruct.2024.118825","url":null,"abstract":"<div><div>Sutural structures are widely observed in biology and attract lots of attention. However, the majority of current research focuses on understanding the characteristics of sutural structures, with little research investigating whether sutural structures in biology are the optimal topological design. To disclose this mystery, this paper summarizes the characteristics of sutural structures found in nature and characterizes their shapes by several important geometric parameters. By establishing analytical models and finite element models of sutural structures, we investigate the stiffness, strength, and damping energy dissipation properties of sutural structures in biomaterials and optimized the sutural shapes based on genetic algorithm (GA) under static tensile and shear loading, as well as dynamic uniaxial loading. Under static loading, sutural structures with interlocking features demonstrate great stiffness and strength. Under dynamic loading, the frequency of the external excitation and the sutural shapes jointly determine the energy dissipation performance. We find that the sutural shapes in typical biomaterials evolve to optimal shapes to achieve certain optimal mechanical properties. Additionally, genetic algorithms provide a paradigm for the design of materials with multi-objectives, allowing for the design of sutural structures that balance various mechanical properties.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118825"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160987","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

Fabrication and electro-thermal performances of glass fiber/carbon nanotube film composites

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118808

Yaofei Huang , Zhiyong Zhao , Chong Peng , Kuo Yang , Pengfei Gao , Jun Gao , Xingrong Chu , Yaoqi Wang

{"title":"Fabrication and electro-thermal performances of glass fiber/carbon nanotube film composites","authors":"Yaofei Huang , Zhiyong Zhao , Chong Peng , Kuo Yang , Pengfei Gao , Jun Gao , Xingrong Chu , Yaoqi Wang","doi":"10.1016/j.compstruct.2024.118808","DOIUrl":"10.1016/j.compstruct.2024.118808","url":null,"abstract":"<div><div>This study explores the electrothermal properties of a new glass fiber reinforced polymer (GFRP) composite with embedded carbon nanotube (CNT) film, aimed at enhancing anti-icing and de-icing efficiencies in marine and aerospace applications. Produced using the floating catalyst chemical vapor deposition (FCCVD) method, the CNT film was integrated within glass fiber/phenolic resin layers. Evaluations included microstructure characterization, thermal analysis, and mechanical testing, which confirmed the composite’s integrity and performance. The tests demonstrated the CNT film’s efficient Joule heating capabilities under various electrical loads, achieving rapid heating to operational temperatures. Additionally, the GFRP/CNT film composite displayed superior mechanical properties and effective de-icing potential, suggesting broader applications in industries needing robust, lightweight, and thermally controllable materials. This advancement significantly enhances the structural and functional capacities of materials used in marine vessels and aerospace.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118808"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160989","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

Topology optimization method for light-weight design of three-dimensional continuous fiber-reinforced polymers (CFRPs) structures

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118819

Yongjia Dong, Hongling Ye, Yang Xiao, Jicheng Li, Weiwei Wang

{"title":"Topology optimization method for light-weight design of three-dimensional continuous fiber-reinforced polymers (CFRPs) structures","authors":"Yongjia Dong, Hongling Ye, Yang Xiao, Jicheng Li, Weiwei Wang","doi":"10.1016/j.compstruct.2024.118819","DOIUrl":"10.1016/j.compstruct.2024.118819","url":null,"abstract":"<div><div>Continuous fiber-reinforced polymers (CFRPs) exhibit excellent mechanical properties and designability, offering more opportunities for achieving better structural performance through optimization. However, the high non-convexity of the concurrent optimization model may result in a suboptimal design. In this paper, a novel topology optimization method for three-dimensional CFRP structures is proposed. The light-weight optimization model with compliance constraint is formulated and solved to obtain an optimal topology and spatial fiber orientation. A local coordinate system is established based on the vectors of principal stress and fiber orientation, the interpolation method is presented to control fiber design variables during iteration, reducing the possibility of local optima. Topology and fiber orientation design variables are updated through the method of moving asymptotes (MMA) after sensitivity analysis. Numerical examples are offered to demonstrate the applicability of proposed method. The influence of different initial fiber orientations, mesh sizes and compliance constraints on the optimization results are discussed. Furthermore, the interpolation strategy is also extended to multi-loaded problems, with effectiveness evaluated through a numerical example. The proposed method offers theoretic support for light-weight design and fiber paths planning of three-dimensional CFRP structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118819"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160994","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 cracking behavior in the Full Stress-Strain process of recycled concrete with real aggregate morphology

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118750

Jingwei Ying , Xiaojie Gan , Yujun Jian , Baixi Chen , Jianzhuang Xiao

{"title":"Multiscale cracking behavior in the Full Stress-Strain process of recycled concrete with real aggregate morphology","authors":"Jingwei Ying , Xiaojie Gan , Yujun Jian , Baixi Chen , Jianzhuang Xiao","doi":"10.1016/j.compstruct.2024.118750","DOIUrl":"10.1016/j.compstruct.2024.118750","url":null,"abstract":"<div><div>The significant amount of waste concrete generated during wars, earthquakes, building demolitions, and urban renewal projects can be processed into recycled aggregates, thus aiding environmental protection and promoting the sustainability of the construction industry. However, the complex mechanical properties of recycled concrete, such as its cracking behavior, considerably limits its application in structural engineering. In this study, a numerical theoretical model of real recycled aggregate concrete (RAC) was established to investigate its mechanical behavior and cracking mechanisms. The model accurately captured the internal crack evolution and stress–strain relationship variation in RAC under uniaxial compressive loading, accounting for the effects of the recycled aggregates, old mortar, interfacial transition zone, type of natural aggregates, and microporosity. The findings of this study can serve as a basis for elucidating RAC failure mechanisms and highlight the impact of recycled aggregates on structural concrete design.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118750"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161280","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

Stability and bifurcation analysis of simply supported rectangular nanoplate embedded on visco-Pasternak foundation based on first-order shear deformation theory

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-01-01 DOI: 10.1016/j.compstruct.2024.118728

Jan Awrejcewicz , Grzegorz Kudra , Olga Mazur

{"title":"Stability and bifurcation analysis of simply supported rectangular nanoplate embedded on visco-Pasternak foundation based on first-order shear deformation theory","authors":"Jan Awrejcewicz , Grzegorz Kudra , Olga Mazur","doi":"10.1016/j.compstruct.2024.118728","DOIUrl":"10.1016/j.compstruct.2024.118728","url":null,"abstract":"<div><div>Vibrations of simply supported nanoplates embedded on visco-Pasternak foundation and stressed by in-plane periodic forces are investigated. The governing size-dependent equations employ the first-order shear deformation theory, nonlinear von Kármán strains, and the nonlocal elasticity theory. Reducing the governing system is carried out by the Bubnov–Galerkin method, which is based on two-mode model, thus the resulting system contains two ordinary differential equations with size- and time-dependent coefficients. Analysing the linearized system, the stability of the nanoplate structure is studied depending on the foundation parameters, force parameters and small-scale parameter. Nonlinear dynamics approaches are employed to determine the nature of vibration after the loss of stability. Time history, Poincare section, Lyapunov exponent are analysed for chosen values of excitation parameters, visco-Pasternak foundation parameters to indicate small-scale effects and nonlinear effects. The novelty of the work consists of the combined application of the nonlocal theory, first-order shear deformation theory, Floquet theory, methods of nonlinear dynamics and obtaining new results by a numerical experiment.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"354 ","pages":"Article 118728"},"PeriodicalIF":6.3,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143161281","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