Journal of Composite Materials最新文献_第8页

Structure, performance, and crystallization behavior of Turkey leonardite and raw kaolin added polylactic acid composite films 土耳其芒硝和添加聚乳酸的生高岭土复合薄膜的结构、性能和结晶行为

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-03-11 DOI: 10.1177/00219983241240628

İbrahim Şen

{"title":"Structure, performance, and crystallization behavior of Turkey leonardite and raw kaolin added polylactic acid composite films","authors":"İbrahim Şen","doi":"10.1177/00219983241240628","DOIUrl":"https://doi.org/10.1177/00219983241240628","url":null,"abstract":"Polylactic acid (PLA) film composites filled with two clays, Raw Kaolin (KAO), an inorganic structure, and Leonardite (LEO), an organic structure, as well as KAO/LEO mixtures, were prepared via solvent casting method. The main aim of this research was to investigate both the individual and the synergetic effects of LEO and KAO; they are incorporated together into a PLA matrix. The influence of these fillers content on the morphological and structural characteristics of the composites was investigated by the DSC, TGA, FT-IR, SEM, XRD, color, haze, and opacity analysis. According to the TGA analysis, significant decreases in Tmax2 were observed with the addition of LEO in PLA. It is also seen in films with KAO/LEO that support this result. Utilizing the solvent casting method, two melting points were formed in PLA films. The P0 film has lower Tg, Tcc, and Tm1 values than other films. However, there were small changes in Tg and Tm2 values in all films. Up to 7.5% amount of LEO and KAO, the mechanical properties of the films improved. The 3L film exhibited the best mechanical properties. The filler materials used were mostly homogeneously distributed, according to the SEM analysis, and as the amount increased, agglomerations were observed in the fillings on the surface. The addition of LEO and KAO changed the surface color, visual appearance, and opacity significantly. The haze values of films are near 100. These film composites have been shown to improve many properties of the P0 film.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"24 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140116325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Efficient homogenization of honeycomb sandwich panels using orthotropic core simplification and Finite Element Method-based method: A comparative study 使用正交各向同性芯简化和基于有限元法的方法对蜂窝夹芯板进行高效均质化：比较研究

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-03-07 DOI: 10.1177/00219983241240472

Hojjat Mousavi, Cyrus Amini

{"title":"Efficient homogenization of honeycomb sandwich panels using orthotropic core simplification and Finite Element Method-based method: A comparative study","authors":"Hojjat Mousavi, Cyrus Amini","doi":"10.1177/00219983241240472","DOIUrl":"https://doi.org/10.1177/00219983241240472","url":null,"abstract":"Composite materials, particularly honeycomb composites, are widely utilized in various industries, including aerospace, due to their high energy absorption against the impact and exceptional strength-to-weight ratio. This study aims to leverage the plastic and elastic properties of these materials to develop a simplified numerical model that incorporates orthotropic properties for core modeling. By doing so, the need for detailed honeycomb structure modeling is eliminated, resulting in reduced computational costs and time. A comprehensive three-dimensional finite element model, accounting for structural intricacies, is presented based on experimental data from a reputable source (isotropic model) and its equivalent finite element model (orthotropic model). The model is validated by the experimental results, demonstrating good agreement. The study also investigates parameters such as energy absorption, the internal energy of the core and faces, maximum displacement, and maximum contact force under low-velocity impact scenarios with spherical and cylindrical projectiles. These findings highlight the effectiveness of the orthotropic model, particularly in showcasing greater energy absorption in the core of the sandwich panel when subjected to a cylindrical impactor.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"38 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140074228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Continuous carbon fiber recycling technology using the electrolytic sulfuric acid method 使用电解硫酸法的连续碳纤维回收技术

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-03-06 DOI: 10.1177/00219983241239121

Yuji Okada

{"title":"Continuous carbon fiber recycling technology using the electrolytic sulfuric acid method","authors":"Yuji Okada","doi":"10.1177/00219983241239121","DOIUrl":"https://doi.org/10.1177/00219983241239121","url":null,"abstract":"Our objective is to achieve the societal implementation of the Circular Economy Program for Automobile Carbon Fibers. This involves recycling carbon fibers sourced from carbon fiber reinforced plastics/carbon fiber reinforced thermoplastics (CFRP/CFRTP) discarded from automobiles and reintegrating them into the manufacturing processes of automobiles. Although, the existing carbon fiber recycling technology recycles the carbon fiber into a finely chopped state; it is not the original continuous carbon fiber product. A novel recycling technology is elucidated herein, referred to as the electrolytic sulfuric acid method (ESAM). The ESAM recycles carbon fibers by decomposing only the resin component of CFRP/CFRTP into CO2 and water using oxidative active species generated by electrolytic sulfuric acid. This method can (1) be applied to all resins, (2) maintains strength of the recycled carbon fibers, and (3) regenerates continuous carbon fibers. Moreover, it is the only technology applicable to CFRP pressure tanks. The successful recycling of continuous carbon fiber from pressure tanks has been achieved, enabling the production of new tanks and unidirectional CFRTP tape. This technology recycles the original continuous carbon fiber product, thus enabling a “close” resource circulation cycle. We have not yet confirmed the number of times recycling can be performed. However, according to the method described in this paper, the recycling process can yield continuous carbon fibers without a decrease in physical properties. Therefore, theoretically, it becomes possible to recycle indefinitely and revert the fibers to their original state, provided that the strength reduction during product use is not a significant consideration.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"52 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140057482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Effects of silver nanowires and their surface modification on electromagnetic interference, transport and mechanical properties of an aerospace grade epoxy 银纳米线及其表面改性对航空航天级环氧树脂的电磁干扰、传输和机械性能的影响

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-03-04 DOI: 10.1177/00219983241238057

Merve Özkutlu Demirel, Mahide B Öztürkmen, Müzeyyen Savaş, Evren Mutlugün, Talha Erdem, Yahya Öz

{"title":"Effects of silver nanowires and their surface modification on electromagnetic interference, transport and mechanical properties of an aerospace grade epoxy","authors":"Merve Özkutlu Demirel, Mahide B Öztürkmen, Müzeyyen Savaş, Evren Mutlugün, Talha Erdem, Yahya Öz","doi":"10.1177/00219983241238057","DOIUrl":"https://doi.org/10.1177/00219983241238057","url":null,"abstract":"The aerospace industry has progressively grown its use of composites. Electrically conductive nanocomposites are among important modern materials for this sector. We report on a bulk composite containing silver nanowires (AgNW) and an aerospace grade epoxy for use in carbon fiber reinforced polymers (CFRPs). AgNWs’ surfaces were also modified to enhance their ability to be dispersed in epoxy. Composites were obtained by use of three-roll milling which is of major interest for industrial applications, especially for the aerospace sector, since the process is scalable and works for aerospace grade resins with high curing temperatures. Our main objective is to improve the electromagnetic interference (EMI) shielding performance of CFRPs via improving the properties of the resin material. The addition of AgNWs did not considerably alter the flexural strength of the epoxy, however the composite with surface-modified AgNWs has a 46 % higher flexural strength. Adding AgNWs over a low threshold concentration of 0.05 wt% significantly enhanced the electrical conductivity. Conductivities above the percolation threshold lie around 102 S/m. At a concentration of 5 wt% AgNW, the EMI shielding efficiency (SE) of epoxy increased from 3.49 to 12.31 dB. Moreover, the thermal stability of the epoxy was unaffected by AgNWs. As a result, it was discovered that (surface modified) AgNWs improved the (multifunctional) capabilities of the aerospace grade epoxy resin which might be used in CFRPs to further enhance properties of composites parts, demonstrating suitability of AgNWs’ as a reinforcement material in aerospace applications.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"27 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140025775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Neural networks modeling of strain energy density and Tsai-Wu index in laminated composites 层状复合材料应变能密度和蔡武指数的神经网络建模

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-02-28 DOI: 10.1177/00219983241235856

Elías Ledesma-Orozco, Julio C. Galvis-Chacón, Alejandro E. Rodríguez-Sánchez

{"title":"Neural networks modeling of strain energy density and Tsai-Wu index in laminated composites","authors":"Elías Ledesma-Orozco, Julio C. Galvis-Chacón, Alejandro E. Rodríguez-Sánchez","doi":"10.1177/00219983241235856","DOIUrl":"https://doi.org/10.1177/00219983241235856","url":null,"abstract":"In laminated composite materials design, optimization mainly targets the stacking sequence configuration, which is defined by the lamina thickness and fiber orientations within each layer. Recent studies emphasize the increasing role of Machine Learning in promoting innovative composite designs by facilitating the accurate modeling of essential properties such as strength and stiffness. This study introduces two metamodels that utilize feed-forward artificial neural networks, taking laminate thickness and fiber steering angles as input parameters. The output variables, including strain energy density and the Tsai-Wu failure index, enable the prediction of stacking sequence configurations for laminated materials, a capability confirmed in a case study. The results showcase neural network models with the ability to predict these variables, achieving coefficients of determination above 0.90 for testing data. Consequently, this modeling approach has the potential to be a tool for designers, aiding in decision-making processes for the subsequent optimization of stiffness and strength in structural components made of laminated composite materials.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"35 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 novel algorithm to generate representative volume elements with cylindrical fibers and sphere particles 用圆柱形纤维和球形颗粒生成代表性体积元素的新算法

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-02-28 DOI: 10.1177/00219983241236868

Ruoyu Li, Zhonghai Xu, Chaocan Cai, Xiaodong He

{"title":"A novel algorithm to generate representative volume elements with cylindrical fibers and sphere particles","authors":"Ruoyu Li, Zhonghai Xu, Chaocan Cai, Xiaodong He","doi":"10.1177/00219983241236868","DOIUrl":"https://doi.org/10.1177/00219983241236868","url":null,"abstract":"In the article, we propose a new method to generate representative volume element (RVE) of random spatial distributions with cylindrical fibers and spherical particles based on the Improved Artificial Bee Colony (IABC) algorithm. In this employed bee phase of IABC, the proposed algorithm adopts a new search strategy, which improves the computational efficiency. To analyze the differences between the fiber distribution generated by this algorithm and the actual fiber distribution, we conducted statistical analysis on the distribution of the generated RVE. The statistical analysis results of the nearest neighbor distance (NND), Second-order intensity function, and pair correlation function were in good agreement with the experiment and complete spatial randomness (CSR) patterns. In addition, the predicted elastic properties were compared with experimental measurements and theoretical prediction methods. The results demonstrate the accuracy and efficiency of the proposed algorithm. This algorithm can quickly generate the RVE of cylindrical fibers and spherical particles with volume fractions of 80% and 62%, and the calculation time for generating the RVE of cylindrical fibers is about 17s.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"44 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Assessment of damping and flexural behaviour of hybrid fibre-particulate composites 评估混合纤维-颗粒复合材料的阻尼和弯曲性能

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-02-28 DOI: 10.1177/00219983241237359

Sergio Luiz Moni Ribeiro Filho, Carlos Thomas Garcia, Luís Miguel P Durão, André Luis Christoforo, Vaclav Ondra, Márcio Eduardo Silveira, Tulio Hallak Panzera, Fabrizio Scarpa

{"title":"Assessment of damping and flexural behaviour of hybrid fibre-particulate composites","authors":"Sergio Luiz Moni Ribeiro Filho, Carlos Thomas Garcia, Luís Miguel P Durão, André Luis Christoforo, Vaclav Ondra, Márcio Eduardo Silveira, Tulio Hallak Panzera, Fabrizio Scarpa","doi":"10.1177/00219983241237359","DOIUrl":"https://doi.org/10.1177/00219983241237359","url":null,"abstract":"Hybrid composites are an advanced solution that offers multifunctional capabilities, including exceptional strength-to-weight ratios, vibrational damping and impact absorption. This work describes the damping capacity and flexural behaviour of a hybrid fibrous-particulate system composed of glass/carbon fabrics and three distinct micro-inclusions: silica particles, carbon waste microfibres, and cement. A statistical methodology based on the full factorial design is applied to identify the effects of fibre stacking sequence, including carbon-C5, glass-G5, C2G3, G3C2, GCGCG and CG3C, microparticle inclusions and matrix/fibre volume fraction (40/60 and 60/40) on damping and bending responses. A non-linear finite element (FE) analysis is conducted to explore the stress distribution based on the stacking sequence and predict the failure mechanisms of the hybrid laminate. The results indicate significant interaction effects, with hybrid architectures showcasing approximately 33% higher performance compared to glass fibre composites. A greater dependence on the fibre layup sequence is found for the damping factor, flexural modulus and strength. Notably, the incorporation of silica microparticles leads to an increase in flexural strength. Furthermore, a greater volume fraction of the matrix phase enhances the rheological efficiency in terms of the fibre-particle interface. Carbon fibre layers placed symmetrically on both beam sides (CG3C) and bottom layers (G3C2) significantly enhance the bending performance of hybrid composites.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"51 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140005422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Progressive fatigue damage modeling of laminated composites using a novel combined fatigue life model 使用新型组合疲劳寿命模型建立层状复合材料的渐进疲劳损伤模型

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-02-27 DOI: 10.1177/00219983241236943

M.R Khatami-Ghazvini, M Haghighi-Yazdi, M.M Shokrieh

引用次数: 0

Achieving highly accurate cavity thickness measurements in fabric compaction 在织物压实中实现高精度空腔厚度测量

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-02-24 DOI: 10.1177/00219983241236872

Pedro Sousa, Xiao Liu, Stepan V. Lomov, Jan Ivens

引用次数: 0

Progressive damage analysis of double-layer variable thickness 3D woven composite scaled engine casing 双层变厚三维编织复合材料按比例发动机壳体的渐进损伤分析

IF 2.9 3区材料科学

Journal of Composite Materials Pub Date : 2024-02-24 DOI: 10.1177/00219983241236875

Kun Wang, Weiyi Kong, Liming Xu, Nan Zhang, Chao Li, Deng’an Cai, Guangming Zhou

{"title":"Progressive damage analysis of double-layer variable thickness 3D woven composite scaled engine casing","authors":"Kun Wang, Weiyi Kong, Liming Xu, Nan Zhang, Chao Li, Deng’an Cai, Guangming Zhou","doi":"10.1177/00219983241236875","DOIUrl":"https://doi.org/10.1177/00219983241236875","url":null,"abstract":"Due to the excellent mechanical properties and strong design flexibility, the 3D woven composite engine casing shows great potential in high performance fields. This article adopted the method of double-layer weaving and adding yarn to achieve the variable thickness of the 3D woven composite engine casing. The purpose of this article is to study the compression performance and failure mechanism of this variable thickness casing in different thickness zones through experiments and numerical simulations to lay a foundation for future optimization and inclusiveness research on this casing with complex thickness changes. Three types of representative volume cells are established for progressive damage analysis. 3D-Hashin criteria and von-Mises stress criterion are used as damage criteria for yarns and matrix. The progressive damage process and the proportion of damage in the inner and outer layers of three types of 3D woven tubes under axial compression load are analyzed. Results show that the main failure modes of the three types of tubes are yarn-matrix compressive cracking along direction 3 and matrix failure. The damages are mostly concentrated in the warp bending area. The proportions of warp yarn damage in the inner and outer layers of three tubes are different.","PeriodicalId":15489,"journal":{"name":"Journal of Composite Materials","volume":"255 1","pages":""},"PeriodicalIF":2.9,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139952012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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