Composite Structures最新文献_第3页

Low-velocity impact compressive damage of 3-D braided ramie fiber reinforced composites

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-21 DOI: 10.1016/j.compstruct.2025.119000

Lamei Wang , Baozhong Sun , Ming Cai , Bohong Gu

{"title":"Low-velocity impact compressive damage of 3-D braided ramie fiber reinforced composites","authors":"Lamei Wang , Baozhong Sun , Ming Cai , Bohong Gu","doi":"10.1016/j.compstruct.2025.119000","DOIUrl":"10.1016/j.compstruct.2025.119000","url":null,"abstract":"<div><div>Impact damage mechanisms of natural plant fiber reinforced composites are essential for their structural design and practical applications. This study reports quasi-static and dynamic compressive behaviors of three-dimensional braided ramie fiber reinforced composites (3DRFRC) and the comparison with carbon fiber reinforced composites (3DCFRC). The results show that the 3DRFRC has a long yield stage under the quasi-static compression owing to ramie fiber bend. The 3DRFRC exhibits higher in-plane dynamic compressive properties than those of the 3DCFRC, and the energy absorption rate (EAR) of the former is 27 % more than that of the latter at 30 J impact energy. EAR of the four-directional in the 3DRFRC exceeds 90 % under dynamic compression and is higher than that of the five-directional owing to more accessible deformations. The FEA results show that the resin damage in yarn was the leading cause of yarn damage under dynamic compression. The ramie fiber bend and lumen collapse are micro-scale damage mechanisms of the 3DRFRC under in-plane and out-of-plane dynamic compression, respectively.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 119000"},"PeriodicalIF":6.3,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508753","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

Effect of prepreg ply thickness and orientation on tensile properties and damage onset in carbon-fiber composites for cryogenic environments

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-21 DOI: 10.1016/j.compstruct.2025.118996

Eduardo Szpoganicz , Fabian Hübner , Uwe Beier , Matthias Geistbeck , Maximilian Korff , Ling Chen , Youhong Tang , Tobias Dickhut , Holger Ruckdäschel

{"title":"Effect of prepreg ply thickness and orientation on tensile properties and damage onset in carbon-fiber composites for cryogenic environments","authors":"Eduardo Szpoganicz , Fabian Hübner , Uwe Beier , Matthias Geistbeck , Maximilian Korff , Ling Chen , Youhong Tang , Tobias Dickhut , Holger Ruckdäschel","doi":"10.1016/j.compstruct.2025.118996","DOIUrl":"10.1016/j.compstruct.2025.118996","url":null,"abstract":"<div><div>This study addresses the effects of laminate design on the damage and failure behaviour of carbon-fiber reinforced composites with varying ply thicknesses and stacking configurations under cryogenic temperatures. The aim was to observe the ultimate tensile performance and in-situ onset of damage at 296 and 77 K environments, combining microscopy and simulation analyses. Laminates with fiber areal weights of 140, 70 and 45 g/m<sup>2</sup> were stacked in 2 different quasi-isotropic configurations. The results show that ultimate tensile properties are improved at 77 K, though failure strain slightly decreases. Thinner ply laminates with 70 and 45 g/m<sup>2</sup> showed a 15–20 % improvement in cryogenic tensile failure-strain, while damage onset shifted from 0.5 % to 0.8 % of strain. Adding off-axis plies improved laminates by 10–15 %, preventing damage onset up to failure. Microscopy and simulation analyses showed good agreement with the in-situ signal for the onset of damage, indicating matching levels of delamination failure initiation measured at 77 K. No transverse microcracks were observed, and permeation measurements showed no significant leakage increase after delamination onset. Ultimately, this work introduces a novel integrated approach by combining in-situ cryogenic testing, damage onset methodology, fractography, simulation analysis, and gas permeation measurements.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 118996"},"PeriodicalIF":6.3,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143478860","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

Blast resistance of sandwich structures consisting of re-entrant honeycombs reinforced by catenary

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-20 DOI: 10.1016/j.compstruct.2025.118995

Zhen Zou , Fengxiang Xu , Xiaoqiang Niu , Yifan Zhu , Zhoushun Jiang

{"title":"Blast resistance of sandwich structures consisting of re-entrant honeycombs reinforced by catenary","authors":"Zhen Zou , Fengxiang Xu , Xiaoqiang Niu , Yifan Zhu , Zhoushun Jiang","doi":"10.1016/j.compstruct.2025.118995","DOIUrl":"10.1016/j.compstruct.2025.118995","url":null,"abstract":"<div><div>In order to further improve the blast resistance of re-entrant honeycomb (RH) cored sandwich panels while ensuring manufacturability, a sandwich panel consisting of RH reinforced by catenary is proposed, and its blast resistance is evaluated through the finite element method validated by the explosion experiments of reinforced RH (RRH) cored sandwich panels. The numerical results show that the RRH core can achieve an 18.7% decline in the maximum deflection of back facesheets, and a 25.7% increase in energy absorption, compared to the classic RH core with the same relative density. When RRH and RH cores share the same thickness, the former can achieve a 76.1% decrease in the maximum deflection of back facesheets and a 10.4% improvement in energy absorption. Furthermore, the deformation behavior of sandwich panels and core units is analyzed to determine that both the formation of more plastic hinges and a larger deformation region than those observed in classic RH cores promote the better blast resistance of RRH cored sandwich panels. Additionally, a parametric analysis is carried out to suggest that increasing the core thickness and catenary height of RRH units can further improve the anti-blast performance.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 118995"},"PeriodicalIF":6.3,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509437","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

Data-Driven Mean-Field Homogenization: Enhancing the accuracy of the Mori-Tanaka method

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-20 DOI: 10.1016/j.compstruct.2025.118985

Witold Ogierman

{"title":"Data-Driven Mean-Field Homogenization: Enhancing the accuracy of the Mori-Tanaka method","authors":"Witold Ogierman","doi":"10.1016/j.compstruct.2025.118985","DOIUrl":"10.1016/j.compstruct.2025.118985","url":null,"abstract":"<div><div>The Mori-Tanaka method is well-known for its good predictive capabilities and excellent time efficiency. However, a significant weakness of the Mori-Tanaka method is its decreasing accuracy as the volume fraction of particles increases. Therefore, this paper focuses on developing a new approach to improve stiffness predictions for particle-reinforced composites across a wide range of particle volume fractions by using a mixed data-driven and mean-field homogenization modelling strategy. The basic idea is to modify the strain concentration tensor by fitting the results of Mori-Tanaka homogenization to data generated using numerical full-field homogenization based on the representative volume element (RVE). The modified tensor can then replace the original strain concentration tensor within the established framework of Mori-Tanaka homogenization to predict the effective stiffness. The results obtained using the proposed approach are in good agreement with those provided by full-field finite element-based homogenization. Moreover, the results obtained through Mori-Tanaka and double inclusion methods have been added for reference. The presented results demonstrate the potential of the proposed data-driven mean-field model as an efficient approach for addressing the micromechanics of particle-reinforced composites.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"358 ","pages":"Article 118985"},"PeriodicalIF":6.3,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143473950","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

Mechanical behaviors of glulam beam-to-column joints strengthened with fiber-reinforced polymer composites: Experimental investigation, numerical analysis and ANN prediction model

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-19 DOI: 10.1016/j.compstruct.2025.118983

Yasemin SIMSEK TURKER, Semsettin KILINCARSLAN, Mehmet AVCAR

{"title":"Mechanical behaviors of glulam beam-to-column joints strengthened with fiber-reinforced polymer composites: Experimental investigation, numerical analysis and ANN prediction model","authors":"Yasemin SIMSEK TURKER, Semsettin KILINCARSLAN, Mehmet AVCAR","doi":"10.1016/j.compstruct.2025.118983","DOIUrl":"10.1016/j.compstruct.2025.118983","url":null,"abstract":"<div><div>Because of its respective advantages, such as high load-bearing capacity relative to their bulk, low embodied carbon and renewable properties, and sustainability, wood is becoming more popular in engineering structures. Due to several effects, some deterioration occurs in wood structures over time, and the load-bearing elements lose their properties, especially the beam-to-column joints. This study investigates the mechanical behaviors of basalt fiber-reinforced polymer (BFRP) and carbon fiber-reinforced polymer (CFRP) glulam beam-to-column joints. Beam-to-column connections are realized using three methods and are wrapped 2, 3, and 4-times. Cycle loading load–displacement experiments are performed on beam-to-column joints. Vital mechanical behaviors, including maximum load-carrying capacity, energy consumption capacity, and stiffness value, are investigated. The data obtained from the experimental study are estimated by creating a model with artificial neural networks (ANNs) and finite element (FE) analysis. The obtained findings show that the effect of reinforcement improves the rigidities, energy consumption capabilities, and load-carrying capacities of beam-to-column joints. In addition, it is observed that the load-carrying capacity of beam-to-column joints increases with the increase in the number of plies. Furthermore, it is determined that the mechanical behaviors of the beam-to-columns strengthened with CFRPs are better than those for BFRPs.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 118983"},"PeriodicalIF":6.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143488298","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

The impact of additive manufacturing induced geometric defects on auxetic lattices

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-19 DOI: 10.1016/j.compstruct.2025.118968

Garth C. Egan, Alexander J. Angilella, Casey R. Corrado, William V. Skelton Jr

{"title":"The impact of additive manufacturing induced geometric defects on auxetic lattices","authors":"Garth C. Egan, Alexander J. Angilella, Casey R. Corrado, William V. Skelton Jr","doi":"10.1016/j.compstruct.2025.118968","DOIUrl":"10.1016/j.compstruct.2025.118968","url":null,"abstract":"<div><div>While additive manufacturing (AM) has enabled fabrication of intricate features necessary for metamaterials and other lattice structures, it may introduce defects when designs approach the resolution limits of a system.This work examined and quantified the effects of geometric deviations that resulted from AM processes.Reentrant auxetic cells were manufactured at a variety of scales (wall thicknesses of 125–1000 µm) using stereolithography (SLA) and powder bed fusion (PBF). Part inspection revealed a range of small-scale geometric defects, including variation of 20–25 % in the wall thickness when fabricating samples with dimensions approaching the minimum feature size of a printer. Agreement with simulations also grew worse with decreasing sizes, but some defects could be incorporated into the simulations to improve alignment with experiment. Based on these results, it is recommended that the impact of fabrication defects be accounted for when features size approaches approximately 3x the characteristic size of the printing process.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"358 ","pages":"Article 118968"},"PeriodicalIF":6.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464260","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

Dynamic and static behaviour of geopolymer concrete for sustainable infrastructure development: Prospects, challenges, and performance review

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-18 DOI: 10.1016/j.compstruct.2025.118984

Amer Hassan, Chunwei Zhang

{"title":"Dynamic and static behaviour of geopolymer concrete for sustainable infrastructure development: Prospects, challenges, and performance review","authors":"Amer Hassan, Chunwei Zhang","doi":"10.1016/j.compstruct.2025.118984","DOIUrl":"10.1016/j.compstruct.2025.118984","url":null,"abstract":"<div><div>Geopolymer concrete (GPC) is increasingly recognized as a sustainable and environmental option to conventional concrete due to its utilization of industrial byproducts. This paper thoroughly investigates the dynamic and static behaviour of GPC, focusing on its mechanical properties, durability, and resistance to impact and seismic loads. Also, this article compares the experimental results reported in previous studies with a predicted model to justify the results obtained by experiments. According to the evaluation and review of previous studies, it could be summarised that no individual factor influences the structural properties of GPC. Additionally, efforts should be made to determine the interrelationship between various factors in order to facilitate the creation of a GPC that is both cost-effective and sustainable for the environment. Further, emphasis is placed on fibre reinforcement, which enhances the material’s dynamic performance. Also, the dynamic behaviour of GPC, including impact and seismic resistance, is still uncertain due to the lack of studies on this subject, and more investigation on this matter must be undertaken to generate a comprehensive picture of the dynamic behaviour of these materials before introducing them to the industry.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 118984"},"PeriodicalIF":6.3,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143508755","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

Free vibrations of higher-order quasi-3D viscoelastic bi-directional functionally graded plates

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-17 DOI: 10.1016/j.compstruct.2025.118972

Behrouz Karami , Mergen H. Ghayesh , Nicholas Fantuzzi , Krzysztof Kamil Żur

{"title":"Free vibrations of higher-order quasi-3D viscoelastic bi-directional functionally graded plates","authors":"Behrouz Karami , Mergen H. Ghayesh , Nicholas Fantuzzi , Krzysztof Kamil Żur","doi":"10.1016/j.compstruct.2025.118972","DOIUrl":"10.1016/j.compstruct.2025.118972","url":null,"abstract":"<div><div>This study introduces a quasi-3D shear deformation theory to analyse the coupled eight-parameter dynamics of bi-directional functionally graded Kelvin-Voigt viscoelastic plates. By focusing on the quasi-3D formulation, this work uniquely captures the influence of continuous axial and thickness gradation in material properties, utilising a power-law rule to determine effective properties. Viscoelasticity is modelled using the Kelvin-Voigt model to incorporate the energy dissipation of the composite plate structure. Eight governing equations, which are coupled through the in-plane and out-of-plane motions including stretching, are derived via Hamilton’s variational principle. A multi-modal discretisation is conducted using a weighted-residual method as the proposed solution for the in-plane and out-of-plane displacements. Thereafter, a numerical technique is employed to solve the resultant equations, obtaining both the real and imaginary parts of the natural frequencies. The proposed model is validated for the natural frequencies with an elastic counterpart from the literature; a homogenous version of the model is also validated against literature. The results obtained not only provide a comprehensive understanding of how the bi-directional functionally graded viscoelastic material and geometrical parameters influence the coupled eight-parameter dynamics of composite straight plates, but also propose a reliable benchmark for such systems through a quasi-3D model. The investigation revealed that the difference in frequency resulting from the application of both 2D and quasi-3D theories is most dominant in the case of thick plates.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 118972"},"PeriodicalIF":6.3,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Static analysis of FGM plates using a general higher-order shear deformation theory

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-16 DOI: 10.1016/j.compstruct.2025.118944

Abdullah Müsevitoğlu , Atilla Özütok , J.N. Reddy

引用次数: 0

Buckling and bending analysis of FGP nanoplates resting on Pasternak foundation considering non-local and surface effects simultaneously using pb2-Ritz method

IF 6.3 2区材料科学

Composite Structures Pub Date : 2025-02-16 DOI: 10.1016/j.compstruct.2025.118971

Xuan-Trung Dang , Van-Long Nguyen , Minh-Tu Tran , Bich-Phuong Nguyen-Thi , Tien-Thinh Le

{"title":"Buckling and bending analysis of FGP nanoplates resting on Pasternak foundation considering non-local and surface effects simultaneously using pb2-Ritz method","authors":"Xuan-Trung Dang , Van-Long Nguyen , Minh-Tu Tran , Bich-Phuong Nguyen-Thi , Tien-Thinh Le","doi":"10.1016/j.compstruct.2025.118971","DOIUrl":"10.1016/j.compstruct.2025.118971","url":null,"abstract":"<div><div>For nanoplate structures, due to the large surface-area-to-volume ratio, surface stress exhibits a great influence on the mechanical behavior of the structure. This paper develops a semi-analytical solution using the pb2-Ritz method for bending and buckling analysis of functionally graded porous nanoplates, considering simultaneously non-local and surface effects. The equilibrium equations for the nanoplate on the Pasternak elastic foundation according to Reddy’s third-order shear deformation theory are established based on the principle of minimum potential energy. The critical load in buckling analysis and deflection in the nanoplate subjected to bending are determined through semi-analytical solutions for different types of boundary conditions. The influence of the surface effect, non-local parameters, material parameters, elastic foundation and boundary conditions on the bending and buckling behaviors of the nanoplate is demonstrated through numerical examples. The numerical solutions and theoretical advances reported here provide important insights for surface energy and nonlocal theories of nanoplate structures.</div></div>","PeriodicalId":281,"journal":{"name":"Composite Structures","volume":"359 ","pages":"Article 118971"},"PeriodicalIF":6.3,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479021","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