From a different-angle / Frank Henning in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 1-2 (01-02/2017)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 1-2 (01-02/2017) . - p. 39-42 Titre : From a different-angle : ORW technology enables multi-axial local reinforcement for RTM structural components Type de document : texte imprimé Auteurs : Frank Henning, Auteur ; Bernd Thoma, Auteur ; Rainer Wendel, Auteur ; Philip Rosenberg, Auteur ; Götz T. Gresser, Auteur ; Bauder Hans-Jürgen, Auteur ; Jürgen Wolfrum, Auteur ; Metin Caliskan, Auteur Année de publication : 2017 Article en page(s) : p. 39-42 Langues : Anglais (eng) Catégories : Composites à fibres -- Propriétés mécaniques Composites à fibres de carbone Composites à fibres de verre Flexion (mécanique) Matériaux -- Allègement Moulage par transfert de résine sous vide Renforts textiles Structure multiaxiale Tissage Traction (mécanique) Index. décimale : 668.4 Plastiques, vinyles Résumé : In the manufacturing of RTM structural components, semi-finished textiles can be locally reinforced at different angles using a special weaving procedure. This allows the mechanical properties to be improved in highly stressed areas. Note de contenu : - Glass-fiber-reinforced headlamp bowl with local carbon fiber reinforcement. It was possible to enhance the mechanical properties according to the load orientation through the multi-axial integration of carbon fibers into the basic glass fabric - Multi-axial fabric reinforcement - The challenge of reshaping - FIGURES : 1. Reinforcing fabric made of glass fibers without and with multi-axial reinforcement : a) bi-axial base fabric ; b) tri-axially reinforced fabric, angle + 21° ; tetra-axially reinforced fabric, angle ± 21° - 2. Schematic diagram of the ORW concept - 3. Comparison of the tensile and bending properties of composites without and with multi-axial reinforcement at 41°. The properties in multi-axial direction could be further enhanced by increasing the amount of fibers per centimeter during the weaving process - 3. Comparison of the tensile and bending properties of composites with multi-axial reinforcement at 41° and 21°. One reason for the improvement of the mechanical properties is presumably the smaller ondulation of the fibers at 21° - 4. Comparison of the tensile and bending properties of composites with multi-axial reinforcement at 41° and 21°. One reason for the improvement of the mechanical properties is presumably the smaller ondulation of the fibers, at 21° - 5. Steps for the further processing of a fabric, which was reinforced multi-axially using ORW, to produce a finished fiber composite component : two-dimensional pre-cut fibers and fiber preform, infiltrated RTM component En ligne : https://drive.google.com/file/d/1i9HFj-7DDyb02oCL4CSnhy7vQsBOId6P/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=27923 [article]

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Lightweight construction for heavyweights / Lars-Fredrik Berg in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 4 (2022)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 4 (2022) . - p. 46-49 Titre : Lightweight construction for heavyweights : Lightweight traction battery system for electromobility Type de document : texte imprimé Auteurs : Lars-Fredrik Berg, Auteur ; Johannes Liebertseder, Auteur ; Andreas Menrath, Auteur ; Philip Rosenberg, Auteur Année de publication : 2022 Article en page(s) : p. 46-49 Langues : Anglais (eng) Catégories : Accumulateurs lithium-ion Composés de moulage en feuille Composites à fibres Construction sandwich Matériaux -- Allègement Matières plastiques dans les automobiles Polyuréthanes Véhicules électriques Index. décimale : 668.4 Plastiques, vinyles Résumé : The battery system is one of the heaviest components in the powertrain of an electric vehicle. The use of lightweight materials and high-volume production processes according to requirements and functionality offers significant potential to reduce weight without compromising on safety or performance. A new technology concept shows the particular advantages of using a modified direct process with a tailored material selection. Note de contenu : - Lightweight structural module concept with integrated functions - Battery pack in hybrid design - SMC module end plates with integrated functions - Production of the sandwich base plate with the D-SCM process - Figure : Lightweight battery module with lithium-ion battery cells in pouch cell format and SMC module end plates - Fig. 1 : Cutaway model of the entire battery system - Fig. 2 : Schematic for the simple and efficient production of lightweight, highly rigid sandwich structures using the D-SCM process - Fig. 3 : Partial section of the battery module as a technology demonstrator with the functionally integrated SMC module end plates and the base plate manufactured using the D-SCM process En ligne : https://drive.google.com/file/d/1sSEj4OokAsL3yvSiRCasegPRpX3tnIIy/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37968 [article]

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