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In situ compressive behavior of carbon fibers reinforced PolyEtherEther Ketone laminates exposed to one-sided heat flux J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-16 Benoit Vieille, Alexis Coppalle
This study investigates the influence of a combined thermal heat flux (imposed by a cone calorimeter) and a compressive loading on the deformation and damage mechanisms within quasi-isotropic carbon fibers reinforced PolyEtherEther Ketone laminates. Thermogravimetric Analyses conducted at increasing heating rates under nitrogen (from 5 to 500°C/min) provide valuable information on the thermal decomposition
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Characteristics of in-situ automated fiber placement carbon-fiber-reinforced low-melt polyaryl ether ketone laminates part 1: Manufacturing influences J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-15 Ines Mössinger, Lukas Raps, Daniel Fricke, Jonathan Freund, Miriam Löbbecke, Ashley R Chadwick
This study presents an investigation into mechanical and thermal properties, as well as the microstructure of Automated Fiber Placement-manufactured laminates using a novel carbon fiber-reinforced low-melt polyaryl ether ketone polymer material. The material’s lower melting temperature and lower melt viscosity as compared to established high-temperature thermoplastic materials as PEEK, promises favourable
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Predicting the fiber orientation of injection molded components and the geometry influence with neural networks J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-15 Till Hermann, Dariusz Niedziela, Diyora Salimova, Timo Schweiger
The injection molding simulation of short fiber reinforced plastics (SFRP) is time consuming. However, until now it is necessary for predicting the local fiber orientation, to optimize the molding process and to predict the mechanical behavior of the material. This research presents the capabilities of artificial neural networks (NN) in predicting fiber orientation tensor (FOT) during injection molding
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Contribution to the percolation threshold study of Silicon carbide filled polydimethylsiloxane composites used for field grading application J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-12 Renaud Metz, Sofiane Terzi, Barbara Fayard, Jean-Louis Bantignies, Mehrdad Hassanzadeh
The correlations between the electrical behavior and microstructural properties of samples consisting of particle composites fabricated from SiC particles embedded in a silicone matrix, were investigated using X-ray computed tomography. In the voltage field range 200-1000 V/mm, the measured conductivity as a function of SiC volume fraction exhibits two distinct gaps. Upon further investigations, we
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Dynamic responses and interactive failure mechanisms of carbon fiber composite face sheets/double-layer corrugated core sandwich structures under low-velocity impacts loading J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-10 Hangyan Wang, Jiayou Guo, Guangguang Zhang, Shuiting Zhou, Liange Ouyang
A single-layer and double-layer corrugated core sandwich structure consisting of carbon fibre–reinforced polymer (CFRP) panels and aluminium alloy core layers was designed. Numerical simulations were carried out in HyperMesh/LsDyna, and the simulation results of single-layer and double-layer corrugated sandwich structure were compared with the experimental results to verify the reliability of the proposed
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Assessment of mechanical and physicochemical properties of palm fiber composites: Effect of alkaline treatment and volume alterations J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-10 Hocine Heraiz, Chouki Farsi, Hocine Makri, Salah Amroune, Ahmed Belaadi, Khalissa Saada, Moussa Zaoui, Mohammed Ismail Beddiar
This study assesses the impact of alkaline treatments and volume fractions on biocomposites composed of a high-density polyethylene (HDPE) matrix reinforced with date palm tree fibers (FPDS). Tensile tests were conducted on both untreated and NaOH-treated biocomposites. Additionally, fiber analysis was performed using scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results reveal
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Investigations on the development of impact-resistant thermoplastic fibre hybrid composites from glass and steel fibre J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-09 Matthias Overberg, Mir Mohammad Badrul Hasan, Anwar Abdkader, Jan Rehra, Sebastian Schmeer, Chokri Cherif
With the increased use of fibre reinforced composites (FRP), the design of new generation of composite structures with high stiffness and a ductile material behaviour is required to cope with complex load scenarios and high damage tolerances. This can be achieved, in particular, by a combination of conventional fibre-reinforced composites (FRP), which possess high stiffness and strength with metallic
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PAN-based fiber-reinforced carbon-carbon composites for improved fire retardancy and thermal and electrical conductivities for harsh environments J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-08 TKS Murali, Md Shafinur Murad, Mete Bakir, Ramazan Asmatulu
Carbon-carbon (C-C) fiber composites are a new class of materials that are used in various industries due to their exceptional chemical, thermal and electrical conductivities properties. In this study, carbon-carbon fiber composites were manufactured where polyacrylonitrile (PAN) powder was dissolved in dimethylformamide (DMF) solution, and carbon fibers with desired concentrations (20–80 wt%) were
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Enhancement of the contact behavior of a quasi-isotropic carbon fiber/epoxy matrix laminate with an elastic body by modifying the fiber-matrix interphase using graphene nanoplatelets J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-08 Abad Arcos-Alomía, Aarón Rivas-Menchi, Alex Valadez-González, Pedro J Herrera-Franco
This study analyzed the effect of incorporating graphene nanoplatelets in the fiber-matrix interphase on the behavior of a multiscale composite laminate based on carbon fibers and epoxy resin subjected to contact loads. The selected loading mode was the contact between an elastic surface and a cylinder. The multiscale composite material used was a quasi-isotropic laminate with graphene nanoplatelets
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Compression-compression fatigue performances of hybrid unidirectional/woven carbon-fiber reinforced composite laminates after LVI J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-08 Wenqian Wang, Hangchao Wang, Yu Feng, Binlin Ma, Zhe Li, Jinpeng Li
Compression-compression fatigue behavior of hybrid unidirectional/woven carbon-fiber reinforced composite laminates after low-velocity impact (LVI) was studied in this paper. The paper contains two parts. Firstly, different levels of impact energy were introduced on the specimens. Impact damage modes were obtained and characterized as fiber breakages, matrix cracks, indentation and delamination. The
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Concurrent effect of shear flow and CNT presence on crystallization behavior and electrical properties of polypropylene based nanocomposites: A comprehensive structure-property investigation J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-06 Younes Alimoradi, Maryam Nourisefat, Arman Farzaneh, Hossein Nazokdast
The loading of nanoparticle in the polymer matrix affects their response to shear flows applied during the fabrication process. With this in mind, in the present study, the concurrent effect of carbon nanotube (CNT) presence and shear application on the rheological and electrical properties as well as on the crystallization behavior of polypropylene (PP) based nanocomposites has been investigated.
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Structural improvement of 3D woven honeycomb composite liner for enhanced energy absorption and impact performance in aircrew helmet J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-05 Omender Singh, BK Behera
This study aims to enhance the performance of aircrew helmet liners made of 3D woven honeycomb composites through structural improvements. To achieve this, an optimization of the honeycomb design was carried out using a statistical tool by varying its geometrical parameters. A Box Behnken design was employed, using three independent factors: cell height, cell size, and cell wall thickness to assess
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Analysis of load-bearing characteristics of bi-modulus composite stiffened plates: Numerical simulation method and large-scale experimental verification J. Compos. Mater. (IF 2.9) Pub Date : 2024-04-01 Zhenzhou Ye, Xiaobin Li, Lin Lv, Weimeng Xie, Wei Chen, Wei Shen
A large number of experiments show that composite materials usually show different modulus properties in tension and compression (bi-modulus). However, for actual composite engineering structures, especially complex models, the numerical simulation calculation is usually based on a single modulus. In order to consider the different modulus characteristics of composite materials in tension and compression
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Self-healing potential of stitched glass/polypropylene/epoxy hybrid composites with various fibers J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-29 Gaye Kaya, Erdem Selver
This study compares the impact damage response and self-healing potential of unstitched and stitched glass/polypropylene (PP) fiber reinforced thermoset composite structures. The novelty of this study is weaving preforms with an intra-ply hybridization of glass and thermoplastic PP fibers and stitching these preforms with a unique stitching pattern by considering the effect of stitching fiber types
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Characteristics of in-situ automated fiber placement carbon-fiber-reinforced low-melt polyaryl ether ketone laminates part 2: Effect of prepreg composition J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-29 Lukas Raps, Ashley R Chadwick, Ines Mössinger, Mathieu Vinot, Tobias Behling, Yannick Schaefer
This paper presents an investigation into prepreg tape composition and its impact on the consolidation quality of in‐situ Automated Fiber Placement-manufactured laminates. Three different prepreg tape materials were investigated in terms of fiber distribution, porosity and surface roughness. Laminates were manufactured using the in-situ Automated Fiber Placement process and subsequently tested using
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Performance analysis of fiber-reinforced polypropylene composite laminates under quasi-static and super-sonic shock loading conditions for impact application J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-28 Khushi Ram, Mohit Gupta, Kartikeya Kartikeya, Vikas Khatkar, Puneet Mahajan, Naresh Bhatnagar
In the present research, glass and basalt fiber-reinforced polypropylene composites’ behaviour in quasi-static and dynamic conditions is studied. Composites were fabricated by vacuum assisted Compression molding method. Composites failure under quasi-static tension and compressive conditions was studied along with its failure behaviour under low-velocity impact and super-sonic shock loading under dynamic
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Expression of concern: “Effect of friction and shear strength enhancement on delamination prediction” J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-26
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A novel systematic approach for robust numerical simulation of carbon fiber-reinforced plastic circular tubes: Utilizing machine-learning techniques for calibration and validation J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-25 Milad Abbasi, Abolfazl Khalkhali, Johannes Sackmann
Developing a reliable and robust finite element model of a carbon fiber-reinforced plastic (CFRP) composite structure is investigated by using the LS-DYNA solver and Python. This study tries to provide a systematic numerical approach to cover the principal impediment to adaptation of composite energy absorbers, that is the lack of a reliable predictive method. The proposed procedure aims to further
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Numerically assisted calibration procedure of nonlinear in-plane shear properties of unidirectional composite laminae based on off-axis tensile experiments J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-25 László Kovács, Gábor Romhány
In this paper, a novel methodology is presented to evaluate the true nonlinear shear response of continuous fiber-reinforced plastic (CFRP) unidirectional laminae. It requires simple off-axis tensile experiments to be conducted and a finite element (FE) representation of them with a material constitutive law capable of handling nonlinearity in shear. Upon successful evaluation of the normal stiffness
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The effect of resin properties on toughness translation in interleaved composites J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-23 Mohanad Idrees, Giuseppe R. Palmese, Nicolas J. Alvarez
Interleaving is a well-recognized method for enhancing the interlaminar fracture toughness of composite materials. However, theoretical toughness is often not realized since cracks tend to propagate through regions of lower toughness. While most studies have focused on the effect of interleaf properties, e.g., thickness and interleaf resin properties, on composite interlaminar fracture toughness, the
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Development and characterization of a through-air thermobonding process with high heating rate for activating the binder and producing preforms for fibre-reinforced polymers J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-22 Sven Hellmann, Thomas Gereke, Wolfgang Truemper, Chokri Cherif
This study focuses on the development of an advanced high heating rate thermobonding process for the manufacture of preforms and the metrological characterisation of the process. The process involves passing hot air, driven by pressure differential, through a textile stack consisting of several plies of a quadraxial fabric coated with a binder. Heat is transferred into the stack and into the binder
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In-line monitoring of cryogenic three-point bending test of fiber-reinforced composites using acoustic emission J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-20 Björn Maack
Remotely in-line monitored acoustic emission (AE) of interlaminar shear strength tests in a 3-point bending test of fiber-reinforced polymer composites (FRP) conducted under cryogenic conditions in liquid nitrogen (LN2) were studied. The AE sensors were reversibly mounted at the outer components of the testing machine to thermally decouple them from the cryogenic area and use AE signal transmission
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Examining the bending test properties of bio-composites strengthened with fibers through a combination of experimental and modeling approaches J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-16 Khalissa Saada, Chouki Farsi, Salah Amroune, Mohamed Fnides, Moussa Zaoui, Hocine Heraiz
This study explores the relationship between natural fiber filling density (10%, 15%, 25%) and its impact on the bending properties of polymer compounds reinforced with Diss, Sisal and Luffa fibers. Using advanced techniques like fiber analysis and Fourier transform infrared spectrometry (FTIR), the research reveals that a 25% filling density results in the highest stress values (25.61 MPa, 22.21 MPa
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The effect of imperfect bonding on stress distribution in fibrous composites J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-14 Parvaneh Kheirkhah Barzoki, Tianyi Hua, Ouli Fu, Yasser Gowayed
An attempt was made to map the distribution of stress in fibrous composites with imperfect bonding. Two analytical micro-mechanics models were developed. In the first model, the composite was subjected to axial tensile loading, parallel to the fiber direction, and the assumption of iso-strain was employed to derive the control equations. In the second model, the composite was loaded in the direction
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Short-term oxidation and residual compression properties of needle-punched carbon/carbon composites J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-13 Meng Han, Zhichao Wang, Xingyu Zhang, Yang Ni, Weixin Ma, Ge Qi, Xiujing Han, Vadim V. Silberschmidt, Chuwei Zhou
Needle-punched carbon/carbon (NP C/C) composite is widely used in rocket-engine nozzles and re-entry vehicles. Recyclable technology expedited the research on repeated oxidation and residual mechaincal properties of thermal-protection materials. In this study, the critical longitudinal compression strengths before and after oxidation are derived based on the Timoshenko beam theory. Three repetitions
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Fracture mechanism of carbon fiber-reinforced thermoplastic composite laminates under compression after impact J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-13 Yoshiko Nagumo, Miyu Hamanaka, Keiichi Shirasu, Kazuki Ryuzono, Akinori Yoshimura, Hironori Tohmyoh, Tomonaga Okabe
Thermoplastic carbon fiber-reinforced plastics (CFRPs) are increasingly utilized in the aerospace industry owing to their beneficial properties and enhanced formability relative to thermoset CFRPs. Despite the extensive use of these materials, studies focusing on compression after impact (CAI) tests with impact energies exceeding 20 J for thermoplastic CFRPs remain scarce. This study examines CAI tests
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Structure, performance, and crystallization behavior of Turkey leonardite and raw kaolin added polylactic acid composite films J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-11 İbrahim Şen
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
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Structural and nonlinear J-integral fracture toughness for nanoclay toughened ternary HDPE/LDPE-g-MA/ABS blend nanocomposites J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-11 Mushtaq Albdiry
High-density polyethylene (HDPE) has a higher strength-to-density ratio and stiffness but a low branching degree for the packed linear chains that restrict the ability to bond and resist cracking. This study conducts the role of inserting rigid nanoclay (NC) and soft acrylonitrile butadiene styrene (ABS) on the structural, nonlinear fracture toughness and crack resistance of a ternary HDPE/low-density
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Efficient homogenization of honeycomb sandwich panels using orthotropic core simplification and Finite Element-based method: A comparative study J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-07 Hojjat Mousavi, Cyrus Amini
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
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Continuous carbon fiber recycling technology using the electrolytic sulfuric acid method J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-06 Yuji Okada
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
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Effects of silver nanowires and their surface modification on electromagnetic interference, transport and mechanical properties of an aerospace grade epoxy J. Compos. Mater. (IF 2.9) Pub Date : 2024-03-04 Merve Özkutlu Demirel, Mahide B Öztürkmen, Müzeyyen Savaş, Evren Mutlugün, Talha Erdem, Yahya Öz
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
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Neural networks modeling of strain energy density and Tsai-Wu index in laminated composites J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-28 Elías Ledesma-Orozco, Julio C. Galvis-Chacón, Alejandro E. Rodríguez-Sánchez
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
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Assessment of damping and flexural behaviour of hybrid fibre-particulate composites J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-28 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
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
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A novel algorithm to generate representative volume elements with cylindrical fibers and sphere particles J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-28 Ruoyu Li, Zhonghai Xu, Chaocan Cai, Xiaodong He
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
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Progressive fatigue damage modeling of laminated composites using a novel combined fatigue life model J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-27 M.R Khatami-Ghazvini, M Haghighi-Yazdi, M.M Shokrieh
The progressive fatigue damage (PFD) model is a comprehensive method to simulate the fatigue damage behavior of laminated composites under multiaxial cyclic stress. The generalized material property degradation (GMD) technique is a component of the PFD model. Also, the fatigue life modeling of a UD ply under a uniaxial state of stress is a subcomponent of the GMD technique. The present article compares
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Research laser scanning damage detection method in f-k domain for laminate composite material J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-24 Ziping Wang, Hangrui Cui, Yue Fei, Bingqian Li, Rahim Gorgin
The use of composite plate structures has become increasingly prevalent in industries such as civil engineering, aerospace, high-speed rail, automotive, and wind power. However, the propagation of ultrasonic Lamb waves in these structures is subject to multi-modal and frequency dispersion effects, which, coupled with the complicated anisotropic propagation mechanism of composite materials, makes it
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Progressive damage analysis of double-layer variable thickness 3D woven composite scaled engine casing J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-24 Kun Wang, Weiyi Kong, Liming Xu, Nan Zhang, Chao Li, Deng’an Cai, Guangming Zhou
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
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Achieving highly accurate cavity thickness measurements in fabric compaction J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-24 Pedro Sousa, Xiao Liu, Stepan V. Lomov, Jan Ivens
The compaction of a fabric reinforcement in a Universal Testing Machine (UTM) allows to determine the achievable fiber volume fraction across a wide range of pressures, a valuable information for composite manufacturing. As seen in the first international compressibility benchmark, inaccuracies in the fabric stack thickness measurement, the approach to compliance correction and the non-parallelism
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Effect of seawater aging on the erosive wear response of aramid fiber reinforced composites J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-20 Abel Eslava-Hernández, Julio A Rodríguez-González, Carlos Rubio-González, Armando I Martínez-Pérez, Edgar E Vera-Cárdenas
This study presents the effect caused by the saline environment (artificial seawater) on the physical and tribological properties of laminated composite materials reinforced with aramid fibers when they are subjected to erosive wear by sand particles. Composite materials made by epoxy resin and reinforced with glass fiber, carbon fiber and hybrid fiber (aramid with carbon) were studied. The laminates
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Prediction of shape distortions in thermosetting composite parts using neural network interfaced visco-elastic constitutive model J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-20 Aravind Balaji, Claudio Sbarufatti, David Dumas, Antoine Parmentier, Olivier Pierard, Francesco Cadini
The work aims to enhance the capabilities of a Finite Element tool, specifically related to a rheological thermo-chemo-viscoelastic constitutive model. This enhancement is intended to improve the tool’s ability to predict the distortions in composite parts caused by the polymerization of the thermoset composite matrix. These distortions occur due to internal residual stress generated by the inherent
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Numerical prediction of thermal conductivity and thermal expansion coefficient of glass fiber-reinforced polymer hybrid composites filled with hollow spheres J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-19 Alireza Moradi, Reza Ansari, Mohammad Kazem Hassanzadeh-Aghdam, Jamaloddin Jamali
The optimal performance of composites enriched with hollow spheres has been reported in contemporary literature, whereas their thermal properties have received less attention. In this regard, a finite element method (FEM)-based micromechanical model has been developed systematically to investigate the role of intra-matrix embedding of hollow spheres on the thermal conductivity and coefficient of thermal
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Enhanced damage tolerance and fracture toughness of lightweight carbon-Kevlar fiber hybrid laminate J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-17 Ahmed Wagih, Harri Junaedi, Hassan A Mahmoud, Gilles Lubineau, Ajay Kumar, Tamer A Sebaey
Low damage tolerance and residual strength are the main drawbacks of carbon fiber composite laminates that limit their application in many lightweight structures. This study demonstrates the exceptional damage tolerance and high fracture toughness of carbon-Kevlar hybrid laminate, where Kevlar plies are placed between two carbon fiber face sheets. Flexural strength after damage and mode I translaminar
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Thermoplastic starch nanocomposites derived directly from cornmeal J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-15 Yanlin Chen, Qian Ma, Ke Wang, Mingyu Cho, Long Jiang
A high content of water is needed in traditional thermoplastic starch (TPS) processing to plasticize the starch and facilitate the processing, which leads to relatively low strength and modulus of the products and causes the issue of product aging partially due to the gradual water loss over time. In this work, based on the results from our previous study on lignin and cellulose nanofibril-reinforced
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Ballistic resistance of a novel re-entrant auxetic honeycomb under in-plane high-velocity impact J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-12 Junlan Guo, Qiang He, Lizheng Li, Jiamei Zhu, Dejun Yan
Due to their high load-bearing capacity and excellent energy dissipation properties, metal honeycomb lightweight sandwich panels are commonly utilized as highly efficient weight-saving components in the automotive, aerospace, and military industries. Especially the auxetic honeycomb sandwich panels have higher yield strength, more robust shear modulus, fracture toughness, less fatigue expansion, and
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Damage history in composite laminates: Matrix cracks leading to delaminations J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-12 Javier Romarís Villanueva, Christos Kassapoglou
Strain energy release rate calculations for various cases of delaminations emanating from matrix cracks are developed and used to predict the onset of delaminations and their growth size as a function of applied tension and shear loads in composite laminates. The method determines the matrix crack spacing, the delamination onset load, the delamination size at onset and, through the use of a newly proposed
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Delamination prevention of composite joints with asymmetric carbon-fiber reinforced plastic adherends J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-10 Vasco DC Pires, Ricardo JC Carbas, Eduardo AS Marques, Lucas FM da Silva
The use of adhesive bonding in aeronautical applications has gained popularity due to its numerous advantages over traditional mechanical fastening methods. However, the issue of delamination still poses a significant challenge in fully embracing this technology in the industry. This study proposes a unique approach to optimize carbon fiber reinforced polymer (CFRP) single lap joints (SLJ) by introducing
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Prediction of creep failure life for unidirectional CFRP with heat-resistant epoxy resin as matrix exposed to high temperature under tension load J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-10 Yasushi Miyano, Masayuki Nakada, Yoko Morisawa, Junya Matsuno, Soshi Kageta
The accelerated testing methodology (ATM) developed by the authors is the methodology for predicting statistically long-term life of CFRP structures based on the viscoelasticity including the time-temperature superposition principle for matrix resin. The formulae of ATM are expressed as the product of static strength at room temperature, its dispersion, and the viscoelastic parameter of matrix resin
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Compressive behavior of triaxially braided metal-CFRP hybrid lattice structures J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-08 Danial Alizadeh, Mohammad Mahdi Abedi, Reza Jafari Nedoushan, Hamid Abyar, Woong-Ryeol Yu
Cellular approaches facilitate the flexible design of materials with desirable properties that may be manufactured from single polymers, metals, and, recently, fiber-reinforced composites. This paper describes cellular materials with metal and carbon fiber-reinforced plastic (CFRP) struts. Composite lattice tubular structures were automatically braided, and the effects of axial CFRP yarns on the compressive
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Investigation of quality related process variables in pultrusion by correlation of numerical and experimental data with application of an inline data acquisition system J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-05 Christoph Heimbucher, Lorenz Seeßelberg, Erhard Giese, Simon Boysen, Axel S Herrmann
The pultrusion process is an efficient technology for the continuous production of fiber reinforced polymers. While the process is industrially established for decades, the interactions between process parameters and material quality of pultruded profiles are – despite various studies – not fully understood yet. Due to the complexity of the process and the variety of materials, it is difficult to identify
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In-plane shear damages consideration of hoop wound composite cylinders using acoustic emission method J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-05 Mehdi Farajpour, Mehdi A Najafabadi
The objective of this study was to examine the in-plane shear properties of filament-wound composite cylinders and assess the associated damage mechanisms using acoustic emission techniques. Two distinct composite materials, namely carbon/epoxy and glass epoxy, were manufactured for this purpose. The cylinders were subjected to torsion load conditions in accordance with ASTM D5448. Throughout the testing
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Effect of stacking angles on crashworthiness of CFRP square tubes considering low-velocity impact damage J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-02 Chenxi Yang, Yiru Ren
To enhance the residual energy‐absorption (EA) of low-velocity impact-damaged CFRP square tubes, this study investigates the influence of stacking angles on the damaged tubes' residual EA. Through simulation and theoretical analysis, a well-designed stacking angles is proposed to optimize the residual EA. Initially, a simplified method of low-velocity impact damage of composite materials is proposed
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Mechanical properties of a carbon fiber reinforced epoxy resin composite improved by integrating multi-walled carbon nanotubes and graphene nanoplatelets J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-02 Esranur Yuksel, Osman Eksik, Hanzade Haykiri-Acma, Serdar Yaman
The pairs of nanofillers prepared by graphene nanoplatelets (GNPs) and multi-walled carbon nanotubes (MWCNTs) were added to the epoxy matrix in various ratios to produce hybrid epoxy nanocomposites. The effects of the presence of these nanofillers at 0.1–0.4 wt.% on the mechanical and thermal properties were tested. Likewise, carbon fiber reinforced MWCNT/GNP modified epoxy nanocomposite laminates
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Uncertain buckling characteristics of thermally loaded and internally defected variable fiber spacing composite laminates J. Compos. Mater. (IF 2.9) Pub Date : 2024-02-02 Prateek Chandrakar, Narayan Sharma, Dipak Kumar Maiti
The present investigation underscores the efficacy of laminated plates with variable fiber spacing (VFS) in the context of internal defects. The study involves the evaluation of the variability in buckling strength when faced with multiple tiers of damage; this is achieved through the implementation of an improved first-order shear deformation theory (IFSDT) within a finite element (FE) framework.
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Mechanical properties and statistical analysis of Syagrus Romanzoffiana palm cellulose fibers J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-31 Oussama Ferfari, Ahmed Belaadi, Messaouda Boumaaza, Salah Amroune, Hassan Alshahrani, Mohammad KA Khan
Explore the intriguing world of natural fibers, where Syagrus Romanzoffiana (SR) fibers out as a viable alternative to synthetic and glass fibers in composite materials. Dive into the eco-friendly attraction of SR fibers, which are renowned for their natural degradation and ecologically favorable properties. This novel work investigates the performance characterization of 40 mm gauge-length (GL) SR
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Fatigue performance investigation of perforated and bolted pultruded glass fiber reinforced polymer laminates based on experiment and digital images J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-29 Zhihua Xiong, Yang Meng, Chenyu Zhao, Yuqing Liu, Xiaoyu Liu
To investigate the fatigue performance of perforated and bolted pultruded Glass Fiber Reinforced Polymer (GFRP) laminates, a series of tests are conducted including static tensile and cyclic fatigue test, while Digital Image Correlation (DIC) and CT tests were implemented to monitor strains around the perforations and damage developed in the samples subjected to tensile and fatigue tests respectively
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Penalized anisotropy: Controlling anisotropy growth in concurrent optimization of topology and fiber orientation for orthotropic composite materials J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-29 Naruki Ichihara, Masahito Ueda, Tomohiro Yokozeki
The topology and fiber orientation of fiber-reinforced composite structures must be designed computationally to fully demonstrate their anisotropic mechanical properties. Optimization of the topology and fiber orientation is performed either sequentially or concurrently. In the sequential method, topology optimization is performed first, followed by fiber orientation optimization. This separated optimization
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A review on gas permeability of polymer matrix composites for cryogenic applications J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-27 Shuvam Saha, Rani W. Sullivan
Fiber-reinforced polymer matrix composites are increasingly considered for lightweight cryogenic pressure vessels due to their excellent combination of tailorability, specific mechanical properties, and relatively low coefficients of thermal expansion. However, significant challenges must be overcome to fully utilize PMCs for cryogenic fuel tanks in terms of transverse microcracking and subsequent
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Comparative study of failure analysis in glass fiber reinforced laminated pin joints under cyclic and static loading conditions J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-25 Akash Gupta, Manjeet Singh
Glass Fiber Reinforce Polymer (GFRP) composite Joints were studied under monotonic loads for aerospace and marine applications, but cyclic loading is also a common and serious concern in these applications. In this current study, GFRP composite pin joints were analyzed under cyclic loading, at various geometric factors experimentally and numerically using finite element analysis (FEA) and also compared
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Investigation of interlayer toughening of carbon fiber composites using non-woven polyamide veils under different curing pressures J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-23 Poom Narongdej, Jack Denk, Ehsan Barjasteh
Carbon fiber-reinforced composites have become increasingly favored in the aerospace and automotive sectors for their remarkable performance attributes. Nonetheless, their broader adoption is hindered by the concern of delamination. To address this limitation, our study delved into the influence of incorporating a thermoplastic toughening agent on the interlaminar fracture toughness (ILFT) of woven
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Experimental investigations of the fire behavior of composites impacted by kerosene/air turbulent flame J. Compos. Mater. (IF 2.9) Pub Date : 2024-01-22 R Ogabi, B Manescau, K Chetehouna
In this research, we conducted an experimental analysis of a Kerosene/air burner designed according to the FAA's proposed ISO 2685 standard. The burner serves as a vital tool for generating flames and burnt gases, simulating real-world conditions relevant to fire safety studies. The core objective of this study was to comprehensively characterize the burner's behavior. Through a series of experiments