Composites Part B: Engineering最新文献_第2页

Exceptional damping of CFRPs: Unveiling the impact of carbon fiber surface treatments CFRP 的超凡阻尼性能：揭示碳纤维表面处理的影响

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-12 DOI: 10.1016/j.compositesb.2024.111973

Jigang Feng , Chuang Gao , Babak Safaei , Zhaoye Qin , Haihong Wu , Fulei Chu , Fabrizio Scarpa

{"title":"Exceptional damping of CFRPs: Unveiling the impact of carbon fiber surface treatments","authors":"Jigang Feng , Chuang Gao , Babak Safaei , Zhaoye Qin , Haihong Wu , Fulei Chu , Fabrizio Scarpa","doi":"10.1016/j.compositesb.2024.111973","DOIUrl":"10.1016/j.compositesb.2024.111973","url":null,"abstract":"<div><div>A significant body of research has concentrated on augmenting the interfacial slippage between carbon fiber (CF) fabrics and resin to improve the damping properties of CF reinforced plastics (CFRPs). However, a critical but commonly overlooked issue lies in the fact that a higher number of mutual slippage interfaces may lead to potential debonding at the interface. This, in turn, not only influences mechanical properties but also escalates the risk of structural damage. In this study, three distinct modification methods are proposed to alter the surface characteristics of CFs, achieving simultaneous enhancement of the damping and mechanical properties of CFRPs. Specifically, the polymerization of dopamine on the CF surface results in CFRPs with a loss factor of 0.227 at 1 Hz, which is 180 % higher than the 0.081 of referenced CFRP. Additionally, using this modification method, the tensile modulus and strength of the CFRP are increased by about 11.3 % and 6.7 %, respectively. More importantly, the subtle relationships within the CFRPs interface are explored through the different surface modification methods. The interactions between surface wettability, specific surface area, roughness, and interfacial chemical bonding on the mechanical and damping properties are redefined and elucidated. This study demonstrates that surface modification can simultaneously enhance both the damping and mechanical properties of CFRPs, and a satisfactory balance of multiple enhancement effects can be achieved by adjusting the surface modification factors.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111973"},"PeriodicalIF":12.7,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Designing high-performance green tire treads by reinforcing the styrene-butadiene rubber/silica interface with chain difunctionalization 通过链双官能化强化丁苯橡胶/二氧化硅界面设计高性能绿色轮胎胎面

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-09 DOI: 10.1016/j.compositesb.2024.111887

Yihui Xu , Yudong Liu , Yangyang Gao , Ling Liu , Liqun Zhang

{"title":"Designing high-performance green tire treads by reinforcing the styrene-butadiene rubber/silica interface with chain difunctionalization","authors":"Yihui Xu , Yudong Liu , Yangyang Gao , Ling Liu , Liqun Zhang","doi":"10.1016/j.compositesb.2024.111887","DOIUrl":"10.1016/j.compositesb.2024.111887","url":null,"abstract":"<div><div>For green tires, monofunctionalization of rubber has been extensively studied to enhance the interface between rubber and silica. However, the effect of chain difunctionalization has not been reported. In this work, the difunctionalized styrene-butadiene rubber (SBR-DF) was first prepared by grafting small molecules with different functional groups (3-mercaptopropionic acid, 3-mercaptoethanol, and mercaptosilane) to end-group functionalized SBR through thiol-ene click reaction. Then, the molecular dynamics simulation was adopted to calculate the interaction energy between SBR-DF and silica. The results showed that the chain difunctionalization can significantly increase the interfacial interaction energy between them, which was further validated by using RPA and SEM. Moreover, the introduced siloxane groups in the rubber chain can greatly improve the interfacial interaction energy by more than 20 %, which can achieve the uniform dispersion of silica. As a result, the SBR-DF/Silica composites showed the excellent dynamic mechanical properties, such as high wet slip resistance (21 % increase), low rolling resistance (23 % reduction) and high wear resistance (20 % reduction). As a result, the energy consumption of SBR-DF/Silica composites was reduced, which endowed green tires with excellent safety. In summary, this work provides a new and effective strategy for manufacturing the energy-saving, green and safe design of “green tires”.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111887"},"PeriodicalIF":12.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A fluoride rechargeable resin adhesive with long-term antibacterial effect for improved dental treatment 一种具有长期抗菌效果的氟化物可充电树脂粘合剂，用于改善牙科治疗

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-08 DOI: 10.1016/j.compositesb.2024.111939

Daixing Zhang , Jiayi Guo , Yanyun Pang , Ming Liu , Yingjie Yu , Xiaoping Yang , Qing Cai

{"title":"A fluoride rechargeable resin adhesive with long-term antibacterial effect for improved dental treatment","authors":"Daixing Zhang , Jiayi Guo , Yanyun Pang , Ming Liu , Yingjie Yu , Xiaoping Yang , Qing Cai","doi":"10.1016/j.compositesb.2024.111939","DOIUrl":"10.1016/j.compositesb.2024.111939","url":null,"abstract":"<div><div>Polymerization shrinkage of composite resin during curing can form microcracks between the restoration and tooth tissue, facilitating bacterial colonization at the bonding interface and increasing the risk of secondary caries. Thus, developing antibacterial adhesives is crucial. This study synthesized a fluoride-containing dimethylaminohexadecyl methacrylate salt (DMAHDM-F) as a co-monomer to create a fluoride-rechargeable resin adhesive (FD-A) with long-term antibacterial properties. FD-A exhibits stable shear bonding strength, curing kinetics, high mechanical properties, and excellent biocompatibility. Its fluoride release can be sustained for over 1 year, achieving efficient antibacterial effect associated with the quaternary ammonium groups, being superior to those adhesives containing only NaF nanoparticles or quaternary ammonium groups. Of note, the FD-A adhesive is recharged with 10 ppm NaF solution after the one-year release test, and the re-fluorinated sample continues to release more fluoride ion, maintaining its antibacterial efficacy for extended period, which is a welcomed feature for dental applications. In summary, the photopolymerizable fluorinated quaternary ammonium salt provides a potential solution for making dental resin adhesives and composites with stable antibacterial effect to enhance the longevity of dental restorations.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111939"},"PeriodicalIF":12.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Impact of hydrochloric acid doping on polyaniline conductivity and piezoelectric performance in polyaniline/bismuth oxyiodide nanocomposites 盐酸掺杂对聚苯胺/氧碘化铋纳米复合材料中聚苯胺电导率和压电性能的影响

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-08 DOI: 10.1016/j.compositesb.2024.111960

Bartłomiej Toroń , Tushar Kanti Das , Mateusz Kozioł , Piotr Szperlich , Mirosława Kępińska

{"title":"Impact of hydrochloric acid doping on polyaniline conductivity and piezoelectric performance in polyaniline/bismuth oxyiodide nanocomposites","authors":"Bartłomiej Toroń , Tushar Kanti Das , Mateusz Kozioł , Piotr Szperlich , Mirosława Kępińska","doi":"10.1016/j.compositesb.2024.111960","DOIUrl":"10.1016/j.compositesb.2024.111960","url":null,"abstract":"<div><div>This study investigates the impact of hydrochloric acid (HCl) doping, ranging from 0.2 M to 1.25 M, on the conductivity of polyaniline (PANI) and the piezoelectric performance of polyaniline/bismuth oxyiodide (PANI/BiOI) nanocomposites (NCs). Two distinct methods for fabricating NCs based on PANI and bismuth oxyiodide (BiOI) are proposed. Two distinct methods for fabricating PANI/BiOI NCs are proposed, and their optical and electrical properties are systematically examined. The direct allowed energy bandgap of the NCs is found to be approximately 1.9 eV. The piezoelectric performance, attributed to the 2D Janus structure of BiOI, is explored in detail, with the bulk piezoelectric coefficient measured at 1.43 (65) pm/V. Sensitivity to pressure interaction reached 21.1 (92) mV/bar, and the generated power was 5.09 nW for air pressure excitation in a composite consisting of 37.5 wt% BiOI and 62.5 wt% PANI doped with 0.2 M HCl, fabricated in-situ. The results demonstrate precise control over key parameters, including the fabrication method, sample thickness, HCl doping concentration, and BiOI content, highlighting the significant potential for enhancing nanogenerator functionality. These findings provide valuable insights into improving the performance of piezoelectric materials for energy harvesting technologies.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111960"},"PeriodicalIF":12.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Electrostatically connected Fe2O3@Ni-MOF nanosheet array heterojunction for high-performance light-assisted zinc-air batteries 用于高性能光助锌-空气电池的静电连接 Fe2O3@Ni-MOF 纳米片阵列异质结

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-07 DOI: 10.1016/j.compositesb.2024.111936

Jiangchang Chen, Ze Liu, Kaiyong Feng, Fengjun Deng, Yingjian Yu

{"title":"Electrostatically connected Fe2O3@Ni-MOF nanosheet array heterojunction for high-performance light-assisted zinc-air batteries","authors":"Jiangchang Chen, Ze Liu, Kaiyong Feng, Fengjun Deng, Yingjian Yu","doi":"10.1016/j.compositesb.2024.111936","DOIUrl":"10.1016/j.compositesb.2024.111936","url":null,"abstract":"<div><div>Using sunlight to accelerate the sluggish redox reaction at the cathode of zinc-air batteries is an effective strategy. Fe<sub>2</sub>O<sub>3</sub> nanoclusters have excellent photovoltaic properties. However, the photocatalytic redox activity of single Fe<sub>2</sub>O<sub>3</sub> is generally low because of severe charge recombination and insufficient redox catalytic sites. Herein, a Fe<sub>2</sub>O<sub>3</sub>@Ni-MOF nanosheet array (NA) composite exposing abundant Fe<sub>2</sub>O<sub>3</sub> nanoclusters was designed and prepared for accelerating photocatalytic oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). It was demonstrated that the Fe<sub>2</sub>O<sub>3</sub>@Ni-MOFNA heterojunction composites possessed a staggered S-type heterojunction that promoted charge separation and transfer under illumination. Theoretical calculations showed that Fe<sub>2</sub>O<sub>3</sub>@Ni-MOFNA composites had lower reaction free energies compared with the pristine component. Furthermore, the zinc-air battery yielded an output voltage of 1.76 V over the theoretical value and a round-trip efficiency of 98 % under illumination. This work provides a strategy for utilizing solar energy and developing light-assisted zinc-air batteries.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111936"},"PeriodicalIF":12.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Morphological and dynamic mechanical properties of biobased epoxy composites with anisotropic, green carbon aerogels as reinforcement 以各向异性的绿色碳气凝胶为增强材料的生物基环氧树脂复合材料的形态和动态力学性能

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-07 DOI: 10.1016/j.compositesb.2024.111962

Bony Thomas , Henrik Lycksam , Fredrik Forsberg , Kristiina Oksman

{"title":"Morphological and dynamic mechanical properties of biobased epoxy composites with anisotropic, green carbon aerogels as reinforcement","authors":"Bony Thomas , Henrik Lycksam , Fredrik Forsberg , Kristiina Oksman","doi":"10.1016/j.compositesb.2024.111962","DOIUrl":"10.1016/j.compositesb.2024.111962","url":null,"abstract":"<div><div>Hierarchically porous, anisotropic, and green carbon aerogels (CAs) prepared from second most abundant and underutilized biopolymer lignin is used together with biobased epoxy resin to prepare green composite materials with superior mechanical properties. Green and facile preparation route involving ice-templating, lyophilization followed by carbonization was followed for the preparation of CAs. Ice-templating cooling rate is an important parameter in determining the porous structure of the CAs and by choosing a slower cooling rate bigger macropores can be achieved which facilitate the capillary impregnation of the epoxy resin through the CA structure. Hence in this study a cooling rate of 5 K/min was used and the CAs were prepared at 1000 °C from lignin/CNF suspensions containing 3, 5 and 7 wt% of total solid contents. Composites prepared using these CAs as reinforcements showed interesting morphologies which were analyzed using scanning electron microscopy and X-Ray microtomography. Prepared composites contained a mass fraction of 5–9 wt% of CAs. Composites showed remarkable 72 % higher dynamic mechanical properties compared to neat epoxy. Thus, this study introduces new synthesis strategy for carbon composites with completely biobased anisotropic CAs as oriented and strong reinforcements.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111962"},"PeriodicalIF":12.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

3d printing of a continuous carbon fiber reinforced bronze-matrix composite using material extrusion 利用材料挤压技术 3d 打印连续碳纤维增强青铜基复合材料

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-07 DOI: 10.1016/j.compositesb.2024.111961

Mehrdad Mousapour, S Siddharth Kumar, Jouni Partanen, Mika Salmi

{"title":"3d printing of a continuous carbon fiber reinforced bronze-matrix composite using material extrusion","authors":"Mehrdad Mousapour, S Siddharth Kumar, Jouni Partanen, Mika Salmi","doi":"10.1016/j.compositesb.2024.111961","DOIUrl":"10.1016/j.compositesb.2024.111961","url":null,"abstract":"<div><div>The main objective of this study is to investigate, for the first time, the feasibility of 3d printing a continuous carbon fiber (CCF) reinforced metal matrix composite using a cost-effective material extrusion (MEX) technology. Notably, this paper presents a detailed analysis of the microstructure and mechanical and physical properties of a bronze matrix composite reinforced with CCF. The results reveal that CCF significantly impedes the expected densification levels of the composite's structure, causing extensive gaps between the bronze particles. However, despite the high porosity level, the composite's electrical conductivity remains relatively high, demonstrating the limited negative impact of the CCF material on the composite's conductivity. Moreover, mechanical evaluations were performed through 3-point bending and tensile tests, highlighting the composite material's advantages and limitations. The results show that the composite material exhibits an improved yield stress of 76 %, increased ultimate tensile strength of 20 %, and an extended fracture strain of 30 %. However, the flexural strength decreases by 23 % due to the presence of massive gaps formed by CCF.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111961"},"PeriodicalIF":12.7,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A validated simulation methodology for determining single lap shear allowable strength in thermoplastic polymer composites 用于确定热塑性聚合物复合材料单搭接剪切允许强度的验证模拟方法

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-06 DOI: 10.1016/j.compositesb.2024.111909

J. Ninyerola Gavaldà , I.R. Cózar , J.M. Guerrero , S. Abdel-Monsef , A. Sasikumar , A. Turon

{"title":"A validated simulation methodology for determining single lap shear allowable strength in thermoplastic polymer composites","authors":"J. Ninyerola Gavaldà , I.R. Cózar , J.M. Guerrero , S. Abdel-Monsef , A. Sasikumar , A. Turon","doi":"10.1016/j.compositesb.2024.111909","DOIUrl":"10.1016/j.compositesb.2024.111909","url":null,"abstract":"<div><div>While several modeling approaches exist to simulate the strength of single lap shear configurations, their application to obtaining design allowables for thermoplastic composites remains underexplored. This paper addresses this gap by presenting a novel methodology for the forward propagation of parameter uncertainty using advanced finite element models specifically tailored for thermoplastic carbon fiber composites. The proposed approach goes beyond traditional methods by integrating advanced damage models and a structured validation process, supported by an extensive experimental test campaign.</div><div>We demonstrate the feasibility of determining design allowables through simulation by examining the influence of batch size on both the validation process and the prediction of allowable strength. Our findings provide new insights into the propagation of uncertainties in the context of composite material design, showing that it is possible to achieve reliable design allowables through simulation, which can significantly accelerate the development of new components while maintaining high safety standards.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111909"},"PeriodicalIF":12.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655909","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Coupling thermodynamic modelling with experimental study to reveal the evolutionary relationship of pore solutions, products, and compressive strength for lunar regolith simulant geopolymers 将热力学建模与实验研究相结合，揭示月球碎屑岩模拟土工聚合物的孔隙溶液、产物和抗压强度的演化关系

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-06 DOI: 10.1016/j.compositesb.2024.111949

Guangjie Xue, Guofu Qiao

{"title":"Coupling thermodynamic modelling with experimental study to reveal the evolutionary relationship of pore solutions, products, and compressive strength for lunar regolith simulant geopolymers","authors":"Guangjie Xue, Guofu Qiao","doi":"10.1016/j.compositesb.2024.111949","DOIUrl":"10.1016/j.compositesb.2024.111949","url":null,"abstract":"<div><div>Alkali-activation is a highly promising approach for the in situ resource utilisation (ISRU) of lunar regoliths. However, the considerable variation in the composition of lunar regolith simulants can complicate the optimal design of geopolymer mixture ratios, necessitating an in-depth analysis of composition–performance correlations. This study proposes a calculation method that couples thermodynamic modelling with an experimental study to reveal the evolutionary relationship between the pore solution, product formation, and compressive strength. The results indicate that the modulus and dosage of the alkali activator can substantially change the relative content of reactive elements in the pore solution and affect the product type and content. Among these, [Si] and [Al] in the pore solution and gel production are key factors affecting the compressive strength of geopolymers. Understanding these composition–performance relationships is critical for offering essential guidance for performance-based, on-demand material design and optimisation.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"289 ","pages":"Article 111949"},"PeriodicalIF":12.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142655910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Linear viscoelasticity of anisotropic carbon fibers reinforced thermoplastics: From micromechanics to dynamic torsion experiments 各向异性碳纤维增强热塑性塑料的线性粘弹性：从微观力学到动态扭转实验

IF 12.7 1区材料科学

Composites Part B: Engineering Pub Date : 2024-11-06 DOI: 10.1016/j.compositesb.2024.111931

Thomas C. Merlette, Julie Diani

{"title":"Linear viscoelasticity of anisotropic carbon fibers reinforced thermoplastics: From micromechanics to dynamic torsion experiments","authors":"Thomas C. Merlette, Julie Diani","doi":"10.1016/j.compositesb.2024.111931","DOIUrl":"10.1016/j.compositesb.2024.111931","url":null,"abstract":"<div><div>The link between experimental characterization and the constitutive behavior of an anisotropic linear viscoelastic unidirectional carbon fiber-reinforced thermoplastic composite is explored using micromechanics modeling. Dynamic torsion tests were conducted at 1 Hz over a wide temperature range, from the glassy to the rubbery states of the polymeric matrix, on both the pure matrix and the composite, for various cutting angles relative to the fibers. A two-step modeling procedure in the frequency domain is presented to predict and validate the effective behavior of the composite. The first step involves FFT-based homogenization, which maps the microstructure and constituent behaviors to effective transversely isotropic viscoelastic properties. The second step consists of finite element simulations using the effective behavior calculated from homogenization as input to replicate the experiments. A comparison between experimental results and model predictions across the entire temperature range is performed. The modeling predictions show good accuracy at low temperatures, where the matrix is in the glassy state. At high temperatures, where the matrix is in the rubbery state, the predicted behavior becomes too soft. As the phase contrast increases and the ratio of matrix bulk modulus to shear modulus rises significantly, the impact of fiber arrangement on the effective properties becomes more pronounced.</div></div>","PeriodicalId":10660,"journal":{"name":"Composites Part B: Engineering","volume":"290 ","pages":"Article 111931"},"PeriodicalIF":12.7,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142659427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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