Dépouillements

Eddy current non-destructive characterization of carbon fiber reinforcement composites considering capacitive effect / Samir Bensaid in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 2 (04/2021)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 31, N° 2 (04/2021) . - p. 73-79 Titre : Eddy current non-destructive characterization of carbon fiber reinforcement composites considering capacitive effect Type de document : texte imprimé Auteurs : Samir Bensaid, Auteur ; Omar Adib Safer, Auteur ; Didier Trichet, Auteur ; Guillaume Wasselynck, Auteur ; Gérard Berthiau, Auteur ; Javad Fouladgar, Auteur Année de publication : 2021 Article en page(s) : p. 73-79 Note générale : Bibliogr. Langues : Français (fre) Catégories : Caractérisation Composites à fibres de carbone Contrôle non destructif Courants de Foucault On appelle courants de Foucault les courants électriques créés dans une masse conductrice, soit par la variation au cours du temps d'un champ magnétique extérieur traversant ce milieu (le flux du champ à travers le milieu), soit par un déplacement de cette masse dans un champ magnétique. Ils sont une conséquence de l'induction électromagnétique. Eléments finis, Méthode des Fibres à orientation unidirectionnelle Index. décimale : 668.4 Plastiques, vinyles Résumé : This paper presents a modelling procedure to take into account the capacitive effect at high frequencies, in Eddy Current Non-Destructive Characterization (EC-NDC) of Unidirectional Carbon Fiber Reinforcement Composite (UD-CFRC) rods. To simulate the complete EC-NDC systems, first, the multilayer circular air coil is physically modeled by a finite element (FE) axisymmetric eddy current model coupled to equivalent RL circuit. Each layer of the coil is represented by an equivalent resistance (R) in series with the equivalent inductance (L). Secondly, R and L of the coil layers are computed for several frequencies up to 5Mhz, and then introduced into the equivalent RLC circuit with considering inter-turn and interlayer capacitances. Then the inversion problem is solved in order to identify all inner capacitances of the coil. Finally, the UD-CFRC rod is introduced into the FE eddy current axisymmetric model coupled to an equivalent RLC circuit, as a homogenized conductive material with an equivalent transverse conductivity. The coil with the presence of the homogenized UD-CFRC rod is then modeled as a transformer with a secondary connected to a capacitor in parallel with a resistance in order to evaluate the inner capacitor of the UD-CFRC. All evaluated parameters are then introduced in the last model. The comparison between the computed impedance parts and the measured ones shows a mean error less than 2% and a maximum one of 5% according to the frequency. Note de contenu : - METHODOLOGY : Experimental setup - Global computation procedure - MODELING APPROACH : FE axisymmetric model coupled to RL equivalent circuit RLC equivalent circuit - FE axisymmetric model coupled to RLC equivalent circuit DOI : https://doi.org/10.18280/rcma.310202 En ligne : https://www.iieta.org/download/file/fid/54538 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37657 [article]

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Role of wood flour on physical and mechanical properties in polymer matrix composites - a critical review / Lalit Ranakoti in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 2 (04/2021)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 31, N° 2 (04/2021) . - p. 81-92 Titre : Role of wood flour on physical and mechanical properties in polymer matrix composites - a critical review Type de document : texte imprimé Auteurs : Lalit Ranakoti, Auteur ; Pawan Kumar Rakesh, Auteur ; Brijesh Gangil, Auteur Année de publication : 2021 Article en page(s) : p. 81-92 Note générale : Bibliogr. Langues : Français (fre) Catégories : Bois Charges (matériaux) Composites à matrice organique Composites thermoplastiques -- Extrusion Composites thermoplastiques -- Moulage par injection Composites thermoplastiques -- Propriétés mécaniques Composites thermoplastiques -- Propriétés physiques Farines végétales Nanoparticules Résistance au chocs Index. décimale : 668.4 Plastiques, vinyles Résumé : Green and sustainable material is the utmost prerequisite for the advancement of a healthy society and fulfilling the necessary for the improvement in material science. Naturally obtaining wood flour has the competence to be reinforced as a filler substance in the polymer composite. The present article deals with the usage of wood flour as a filler in the polymer composite. The article comprises properties, characteristics, occurrence, the structure of wood, and the techniques implemented in the manufacturing of wood flour polymer composites. In addition, critical parameters and causes that can bring changes in the properties like tensile, flexural, impact and hardness of polymers are also discussed with the addition of wood flour alone and with nanoparticles. The advantages of using wood flour as a filler in the thermoset and thermoplastic polymers discussed, and its hybridization with various natural fibers was also discussed in the present study. Note de contenu : - Manufacturing of wood flour composite injection moulding - Extrusion process - Wood flour composites : Mechanical properties of wood flour plastics - Mechanical properties of wood flour polymer nanocomposite - Applications and future scope of WF polymer composite - Table 3 : Impact strength of WF-polymer composites DOI : https://doi.org/10.18280/rcma.310203 En ligne : https://www.iieta.org/download/file/fid/54553 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37660 [article]

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Influence of basalt fiber-reinforced cement-based composite on slope stability in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 2 (04/2021)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 31, N° 2 (04/2021) Titre : Influence of basalt fiber-reinforced cement-based composite on slope stability Type de document : texte imprimé Année de publication : 2021 Note générale : Bibliogr. Langues : Français (fre) Catégories : Béton renforcé de fibres Béton renforcé de fibres -- Propriétés mécaniques Fibres de basalte Résistance à la compression Tags : 'Fibre  de  basalte'  Composite  'Renforcement  pente'  'Analyse  stabilité' Index. décimale : 668.4 Plastiques, vinyles Résumé : Slope instability may be caused by the action of external load or the lack of internal shear strength. The traditional limit equilibrium method cannot accurately calculate the safety coefficient of slopes enhanced by fiber-reinforced cement piles. Few scholars have discussed the anti-slip property, structural form, and design calculation of fiber-reinforced composite cement piles. Therefore, this paper chooses to analyze the influence of basalt fiber-reinforced cement-based composite (BFRCBC) on slope stability. On the one hand, the authors analyzed the anti-crack mechanism of BFRCBC: the strength analysis was carried out by the rule of mixtures, the anti-crack analysis was implemented by the fiber spacing theory, and the entire anti-crack process was discussed in details. On the other hand, the authors constructed a slope model, and performed the relevant stability analysis. Experimental results show that the BFRCBC cement piles can effectively enhance the stability of the slope. Note de contenu : - Anti-crack Mechanism of BFRCBC : Strength analysis - Anti-crack analysis - Anti-crack process - Slope Modeling and Stability Analysis - Experiments and Results Analysis : - Table 1 : Compressive strength of BFRCBC with different dosages of fibers - Table 2 : Compressive strength of BFRCBC with different fiber lengths - Table 3 : Compressive strength of BFRCBC with different fiber diameters DOI : https://doi.org/10.18280/rcma.310204 En ligne : https://www.iieta.org/download/file/fid/54552 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37661 [article]

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A review of additive manufacturing in aerospace application / Meena Pant in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 31, N° 2 (04/2021)  

[article]  inREVUE DES COMPOSITES ET DES MATERIAUX AVANCES > Vol. 31, N° 2 (04/2021) . - p. 109-115 Titre : A review of additive manufacturing in aerospace application Type de document : texte imprimé Auteurs : Meena Pant, Auteur ; Pritam Pidge, Auteur ; Leeladhhar Nagdeve, Auteur ; Harish Kumar, Auteur Année de publication : 2021 Article en page(s) : p. 109-115 Note générale : Bibliogr. Langues : Français (fre) Catégories : Avions -- Matériaux Impression tridimensionnelle Matériaux -- Allègement Index. décimale : 668.4 Plastiques, vinyles Résumé : In the era of Digital Manufacturing and supporting state-of-the-art, i.e. Additive manufacturing (AM) technology is getting more popular known as 3D printing, AM has created its own space in the fastest growing industry. 3D printing has evolved in previous years, and now, it is being used in several social life domains. The main application of this process has found in prototyping, aerospace industry, biomedical and dental implants. Additive manufacturing prints a part in a layer by layer or line by line pattern. It opposes the basic concept of traditional manufacturing. Advances in composite and multi-material manufacturing provide new opportunities for the convenient manufacture of lightweight parts and modern products, such as flapping wings, satellite brackets, and lightweight components for the aviation industry. It is a particular technology that varies from conventional and subtractive development in terms of lightweight, enhanced features, lower fuel consumption, and optimized machine performance, so on. This paper addressed the progress of AM in the aerospace field and addressed the issues of AM linked to a specific aerospace component. DOI : https://doi.org/10.18280/rcma.310206 En ligne : https://www.iieta.org/download/file/fid/54539 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37662 [article]

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Revue des composites et des matériaux avancés Vol. 31, N° 2 URL