Emile Motta de Castro, Ali Tabei, Daren B. H. Cline, Ejaz Haque, Lindsay B. Chambers, Kenan Song, Lisa Perez, Kyriaki Kalaitzidou, Amir Asadi
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To address these challenges, we demonstrate a novel data processing approach for the single fiber fragmentation test, with the primary objective of maintaining practicality by using typical fragmentation data as-is while deriving interface cohesive parameters. Our twofold process uses Monte Carlo simulations to establish accurate boundary conditions for subsequent numerical analysis using cohesive zone models (CZM). The Monte Carlo simulation derives the average interface shear stress (<i>τ</i><sub>ave</sub>) and critical fiber length (<i>l</i><sub>c</sub>) to estimate the link between the fragmentation process and fiber-matrix properties. Then CZM—while incorporating sample fabrication stresses, interface friction, thermal/cure stresses, and plasticity effects—allows for the assessment of the maximum shear traction (<i>τ</i><sub>max</sub>) and Mode II critical energy release rate (<i>G</i><sub>IIC</sub>). Applying this analysis to the results of a surface treatment involving cellulose nanocrystals deposited at the sized glass fiber-epoxy interface, we reveal the reinforcement mechanisms of interface deposited nanofillers. Our study assists in reconciling the differences between the SFFT and other single fiber methodologies, to bridge the gap between experimental and computational micromechanics.</p><h3>Graphical Abstract</h3>\n<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"8 1","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"New insights in understanding the fiber-matrix interface and its reinforcement behavior using single fiber fragmentation data\",\"authors\":\"Emile Motta de Castro, Ali Tabei, Daren B. H. Cline, Ejaz Haque, Lindsay B. 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Our twofold process uses Monte Carlo simulations to establish accurate boundary conditions for subsequent numerical analysis using cohesive zone models (CZM). The Monte Carlo simulation derives the average interface shear stress (<i>τ</i><sub>ave</sub>) and critical fiber length (<i>l</i><sub>c</sub>) to estimate the link between the fragmentation process and fiber-matrix properties. Then CZM—while incorporating sample fabrication stresses, interface friction, thermal/cure stresses, and plasticity effects—allows for the assessment of the maximum shear traction (<i>τ</i><sub>max</sub>) and Mode II critical energy release rate (<i>G</i><sub>IIC</sub>). Applying this analysis to the results of a surface treatment involving cellulose nanocrystals deposited at the sized glass fiber-epoxy interface, we reveal the reinforcement mechanisms of interface deposited nanofillers. 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New insights in understanding the fiber-matrix interface and its reinforcement behavior using single fiber fragmentation data
As the microscale size of fiber reinforcements limits the physical ability to measure adhesion and residual stresses, there exists an incomplete understanding of the mechanisms that improve composite performance, further compounded by the recent trends in advanced surface treatments that incorporate multi-functional nanofillers. Despite significant advances in the micromechanical analysis of single-fiber systems, revised methodologies to characterize the fiber interface have yet to be standardized, often due to the need for additional experiments. To address these challenges, we demonstrate a novel data processing approach for the single fiber fragmentation test, with the primary objective of maintaining practicality by using typical fragmentation data as-is while deriving interface cohesive parameters. Our twofold process uses Monte Carlo simulations to establish accurate boundary conditions for subsequent numerical analysis using cohesive zone models (CZM). The Monte Carlo simulation derives the average interface shear stress (τave) and critical fiber length (lc) to estimate the link between the fragmentation process and fiber-matrix properties. Then CZM—while incorporating sample fabrication stresses, interface friction, thermal/cure stresses, and plasticity effects—allows for the assessment of the maximum shear traction (τmax) and Mode II critical energy release rate (GIIC). Applying this analysis to the results of a surface treatment involving cellulose nanocrystals deposited at the sized glass fiber-epoxy interface, we reveal the reinforcement mechanisms of interface deposited nanofillers. Our study assists in reconciling the differences between the SFFT and other single fiber methodologies, to bridge the gap between experimental and computational micromechanics.
期刊介绍:
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.