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A new paradigm for hydrogen pressure tanks / Gilles Rocher in JEC COMPOSITES MAGAZINE, N° 152 (09-10/2023)
[article]
Titre : A new paradigm for hydrogen pressure tanks Type de document : texte imprimé Auteurs : Gilles Rocher, Auteur Année de publication : 2023 Article en page(s) : p. 39-41 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Eléments finis, Méthode des
Enroulement filamentaire
Epoxydes
Hydrogène -- Stockage
Récipients sous pression
Réservoirs (récipients)
Stratifiés
Structure biaxialeIndex. décimale : 668.4 Plastiques, vinyles Résumé : Decarbonisation of the transport sector is becoming a pressing matter. Filament wound Type IV hydrogen tanks are reaching their limits, struggling to meet recyclability and conformability criteria from vehicle manufacturers. A paradigm shift is neded which New Generation Tank SA (NGT) whishes to support through its solutions. Note de contenu : - The state of Type IV tank manufacturing processes today
- NGT works to overcome the limits
- Fig. 1 : Fibre micro-structure of a Type IV pressure tank produced through epoxy filament winding with crimp and resin-rich pockets and of a biaxial laminate with even fibre-resin distribution
- Fig. 2 : design for a conventional Type IV pressure tank and NGT's pressure tank
- Fig. 3 : Finite element analysis of NGT pressure tanks for 2-end geometries
- Table 1 : Tank length/diameter ratio and storage efficiency, average for the full product range of an EOM and two Type IV pressure tanks suppliersEn ligne : https://drive.google.com/file/d/1DmDGjTMP60hUGaALIWJ4jn2VX-PO44Eq/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40571
in JEC COMPOSITES MAGAZINE > N° 152 (09-10/2023) . - p. 39-41[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 24157 - Périodique Bibliothèque principale Documentaires Disponible A new platform for producing Class A surface quality components / Friedrich Lars in JEC COMPOSITES MAGAZINE, N° 121 (05-06/2018)
[article]
Titre : A new platform for producing Class A surface quality components Type de document : texte imprimé Auteurs : Friedrich Lars, Auteur ; Francis Defoor, Auteur ; Manuel Setz ; Doris Kretzschmar Année de publication : 2018 Article en page(s) : p. 39-42 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Composites à fibres de carbone -- Moulage par injection
Coût de production
Epoxydes
Procédés de fabrication
Revêtements organiques
Sièges
Transport
VernisIndex. décimale : 668.4 Plastiques, vinyles Résumé : This article introduces the PuriCoat platform for producing Class A surface quality, visible lightweight components within a very short cycle time. Through close technical collaboration between a coatings developer and a specialty chemicals company, products and process conditions were optimized to achieve excellent coating quality and durability. Furthermore, for industrial manufacturing, this platforms negligible emission levels address the growing regulatory demand for VOC-free solutions. With substantial cost savings and the potential for high build rates, PuriCoat makes coated visible interior and exterior parts more accessible than ever. Note de contenu : - New platform combining fast-cure epoxy RTM with an in-mould polyurethane coating
- Experimental optimization
- Numerous options for industrialization : One-shot process - Two-shot process
- Cost model
- Fig. 1 : PuriCoat system performance, with an dwithout surface treatment
- Fig. 2 : Effect of coating thickness on adhesion performance
- Fig. 3 : Clear-coated and piano-black painted parts
- Fig. 4 : Schematic drawing of the one-shot process
- Fig. 5 : Schematic drawing of the two-shot process
- Fig. 6 : Cost comparison for a back seat structure manufactured using various coating methodPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30944
in JEC COMPOSITES MAGAZINE > N° 121 (05-06/2018) . - p. 39-42[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 19930 - Périodique Bibliothèque principale Documentaires Disponible New technology for hybrid carbon-fibre fuselage / Yosif Golfman in JEC COMPOSITES MAGAZINE, N° 106 (07/2016)
[article]
Titre : New technology for hybrid carbon-fibre fuselage Type de document : texte imprimé Auteurs : Yosif Golfman, Auteur Année de publication : 2016 Article en page(s) : p. 40-42 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Avions -- Fuselage
Composites à fibres de carbone
Foudre, Protection contre la
Matériaux -- Propriétés fonctionnelles
ThermoplastiquesUne matière thermoplastique désigne une matière qui se ramollit (parfois on observe une fusion franche) d'une façon répétée lorsqu'elle est chauffée au-dessus d'une certaine température, mais qui, au-dessous, redevient dure. Une telle matière conservera donc toujours de manière réversible sa thermoplasticité initiale. Cette qualité rend le matériau thermoplastique potentiellement recyclable (après broyage). Cela implique que la matière ramollie ne soit pas thermiquement dégradée et que les contraintes mécaniques de cisaillement introduites par un procédé de mise en forme ne modifient pas la structure moléculaire.Index. décimale : 667.4 Encres Résumé : The innovative Boeing 787 Dreamliner consists of more than 50% carbon fibre reinforced plastic (CFRP], a material that combines low weight and exceptional strength. Using COMSOL tools, engineers at Boeing Research found that a metal foil inserted in an CFRP package can provide lightning protection for the aircraft structure. The purpose of the work described in this article is to improve this package, using a lattice mesh netting reinforcement as a supporting structure and a thermoplastic skin to create multifunctional materials that protect the fuselage from lightning strikes white providing vibration damping and sound absorption properties. Note de contenu : - Technology development
- Triaxial forces in the mesh netting element
- Design of a multifunctional hybrid fuselagePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26865
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Code-barres Cote Support Localisation Section Disponibilité 18212 - Périodique Bibliothèque principale Documentaires Disponible New toughened out-of-autoclave prepreg in JEC COMPOSITES MAGAZINE, N° 114 (07/2017)
[article]
Titre : New toughened out-of-autoclave prepreg Type de document : texte imprimé Année de publication : 2017 Article en page(s) : p. 28-29 Langues : Anglais (eng) Catégories : Avions -- Matériaux
Composites à fibres de carbone
Hors autoclave (technologie)
Matériaux -- ImprégnationIndex. décimale : 668.4 Plastiques, vinyles Résumé : After five years of development, Tencate releases a new toughened out-of-autoclave prepreg. The porosity level of the resulting cured parts is compatible with aeronautical specifications. Moreover, this new prepreg has a long outlife and is easy to inspect in comparison with other tough¬ened epoxy systems Note de contenu : - Two cure options
- Wing spar demonstrator
- Storage and fibre options
- FIGURES : 1a. Cure A cycle time - 1b. Cure B cycle time - 2. Compression strength versus open-hole compression (OHC) and compression after impact (CAI) (ksi) [RTD : room temperature/dry, EDC : elevated temperature wet - ETW & ETD conducted at 121°C - 3. Wing spar demonstrator - dimensions : 76 cm x 28 cm 1,9 cm (thickest area)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29052
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Code-barres Cote Support Localisation Section Disponibilité 19177 - Périodique Bibliothèque principale Documentaires Disponible New type of unidirectional prepreg for sport applications with complex shapes / Ichiro Taketa in JEC COMPOSITES MAGAZINE, N° 129 (07-08/2019)
[article]
Titre : New type of unidirectional prepreg for sport applications with complex shapes Type de document : texte imprimé Auteurs : Ichiro Taketa, Auteur Année de publication : 2019 Article en page(s) : p. 29-30 Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Fibres à orientation unidirectionnelle
Impression tridimensionnelle
Matériaux -- Imprégnation
Vélo -- MatériauxIndex. décimale : 668.4 Plastiques, vinyles Résumé : Torayca Prepreg ET40 achieves superior levels of formability with complex shapes while keeping equivalent mechanical properties to conventional continuous-fibre UD prepreg. Note de contenu : - High mechanical properties
- Complex shapes and lightweighting
- Expanding the application of composite materials
- Sport applications
- Fig. 1 : Concept of Torayca ET40 prepreg
- Fig. 2 : Application to crown for golf club "Tour World 747"
- Fig. 3 : Application "MotoGP" machinePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33811
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