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JEC COMPOSITES MAGAZINE / Mutel, Frédérique . N° 131AutomotiveMention de date : 11-12/2019 Paru le : 13/11/2019 |
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Ajouter le résultat dans votre panierDesigning CFRP structures with the aid of topology optimization / Riku Hanyuda in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Designing CFRP structures with the aid of topology optimization Type de document : texte imprimé Auteurs : Riku Hanyuda, Auteur Année de publication : 2019 Article en page(s) : p. 25-26 Langues : Anglais (eng) Catégories : Anisotropie
Composites à fibres de carbone
Epoxydes
Essais dynamiques
Flexion (mécanique)
Matériaux -- Imprégnation
Simulation par ordinateur
Topologie
Torsion (mécanique)Index. décimale : 668.4 Plastiques, vinyles Résumé : Topology optimization is a simulation result that can be used to optimize part shapes. Fibre-reinforced plastics are materials that allow for a design in which strength is specifically increased where required. Combining them makes it possible to design CFRP parts that utilize the materiual's anisotropic properties to a greater degree.
Note de contenu : - Applying topology optimization to CFRP design
- Forming method
- Simple evaluation of simulation results
- Technological development and public implementation
- Fig. 1 : 3D model before optimization
- Fig. 2 : Design area setting
- Fig. 3 : 3D model after optimization
- Fig. 4 : Molded product
- Fig. 5 : Bending test results
- Fig. 6 : Torsion test resultsPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33870
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Innovative semi-products made of recycled carbon fibres / Matthieu Ayfre in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Innovative semi-products made of recycled carbon fibres Type de document : texte imprimé Auteurs : Matthieu Ayfre, Auteur ; Olivier Mantaux, Auteur Année de publication : 2019 Article en page(s) : p. 27-28 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bandes composites
Composites à fibres de carbone -- Propriétés mécaniques
Composites à matrice organique
Fibres de carbone -- RecyclageIndex. décimale : 668.4 Plastiques, vinyles Résumé : The I2M laboratory launched a project to develop a specific unweaving/realignment/consolidation machine in order to transform pieces of carbon fabric into continuous strips of realigned carbon fibres. The process is unique and is the subject of two I2M patents. This equipment is intended for organic-matrix composites. Note de contenu : - Benefits of realigned RCF
- From tape to preform
- Current developments
- Fig. 1 : I2M semi-industrial facility for the realignment of RCF
- Fig. Continuous tapes made of realigned RCF
- Fig. 3 : Alignment scattering of RCF in the tapes
- Fig. 4 : Comparing the specific strength and stiffness of high-performance materials
- Table 1 : Mechanical performance of composites made of aligned recycled carbon fibresPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33871
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Roding automobile GmbH uses advanced lightweight design software / Laurence Dupiczak in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
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Titre : Roding automobile GmbH uses advanced lightweight design software Type de document : texte imprimé Auteurs : Laurence Dupiczak, Auteur Année de publication : 2019 Article en page(s) : p. 32-34 Langues : Anglais (eng) Catégories : Composites à fibres
Conception assistée par ordinateur -- Logiciels
Matériaux -- Allègement
Matières plastiques dans les automobilesIndex. décimale : 668.4 Plastiques, vinyles Résumé : The efficient development of fibre-reinforced plastics products for lightweight components to meet government emission and fuel economy regulations can be made easier by using Fibersim software. A high-level of expertise in fibre-reinforced plastics processing and a system-level assessment of costs are also necessary. This is how Roding Automobile GmbH developed a world-leading lightweight street-legal sportscar and expanded the range of lightweighting design services beyond the automotive industry.
Note de contenu : - The potential of alternative materials
- The FRP processing challenge
- From niche to mainstream
- The "lightweight design spiral" saves costs
- Knowledge of fibre design
- Transfer to production
- The greatest lightweight design potential in composites
- Fig. 1 : The cutting table receives information from Fibersim
- Fig. 2 : Composite materials wind up offering applications that are of inetrest to many other sectors, like machinery and equipment manufacturing, medical technology, or consumer goods
- Fig. 3 : Ply structurePermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33872
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Thermally-conductive structural automotive compounds / Philippe Ciniello in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Thermally-conductive structural automotive compounds Type de document : texte imprimé Auteurs : Philippe Ciniello, Auteur Année de publication : 2019 Article en page(s) : p. 35 Langues : Anglais (eng) Catégories : Composites à fibres de verre
Matières plastiques dans les automobiles
Polyamide 66
Polymères thermoconducteurs
Véhicules hybridesIndex. décimale : 668.4 Plastiques, vinyles Résumé : For some time now, the automotive sector has been involved in an ongoing change of enormous significance linked to the introduction of hybrid and electric mobility projects designed to gradually phase out traditional combustion engines in cars. Note de contenu : - Lightweight structures
- 35 % glass fibre-reinforced PA66
- Fast heat dissipation
- Figure : Heat sinks for automotive lighting devices made of Latinconther thermally-conductive thermoplastics for metal replacementPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33873
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible A new material for thermoformed automotive interior applications / Regine Koudela in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
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Titre : A new material for thermoformed automotive interior applications Type de document : texte imprimé Auteurs : Regine Koudela, Auteur Année de publication : 2019 Article en page(s) : p. 36-37 Langues : Anglais (eng) Catégories : Automobiles -- Habitacles
Composites à fibres de verre -- Propriétés mécaniques
Matières plastiques dans les automobiles
Polypropylène
Temps de cycle (production)Index. décimale : 668.4 Plastiques, vinyles Résumé : Renolit Tecnogor, a 100%-recyclable, glass fibre-reinforced polypropylene-based composite material, is gaining a leading position in the automotive interiors market with majorOEM end customers. Note de contenu : - Lightweight thermoplastic composite
- Mechanical properties
- Short production cycle times
- A wide range of products
- Fig. 1 : Suzuki Vitara rear shelf made of Renolit Tecnogor
- Fig. 2 : A finished part made of Renolit Tecnogor does not release any fibres
- Fig. 3 : Renolit Tecnogor structure with skins on both sidesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33874
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Fast-curing epoxy prepreg system for automated processes with short cycle times / Daniel Grauer in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Fast-curing epoxy prepreg system for automated processes with short cycle times Type de document : texte imprimé Auteurs : Daniel Grauer, Auteur ; Steffen Perner, Auteur Année de publication : 2019 Article en page(s) : p. 38-40 Langues : Anglais (eng) Catégories : Automobiles -- Pièces
Composites à fibres -- Moulage par compression
Composites à fibres de carbone
Epoxydes
Matériaux -- Imprégnation
Matières plastiques dans les automobiles
Moulage par transfert de résine sous vide
Stabilisateurs (automobiles)
Temps de cycle (production) -- RéductionIndex. décimale : 668.4 Plastiques, vinyles Résumé : Until now, series production of CFRP components in the automotive industry has failed due to excessively long process times and high costs. A new, fast-curing epoxy resin system now makes structural and visible components in vehicle construction ready for series production. Note de contenu : - CFRP for the mobility of the future
- Main characteristics of the modified epoxy resin system
- Application example : the Porsche 911 GT3RS suspension system
- prepreg pressing processes significantly reduce production cycle times
- Press Compression Moulding (PCM)
- Resin Transfer Moulding (RTM)
- PCM versus RTM
- Table : main characteristics of the epoxy resin system
- Fig. 1 : CFRP stabilizers on the front and rear axle
- Fig. 2 : Press Compression Moulding (PCM) sequence
- Fig. 3 : resin transfer moulding process (RTM)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33875
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible A revolutionary change in vehicle panel production featuring thermoplastic tape / Gino Francato in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
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Titre : A revolutionary change in vehicle panel production featuring thermoplastic tape Type de document : texte imprimé Auteurs : Gino Francato, Auteur Année de publication : 2019 Article en page(s) : p. 41-42 Langues : Anglais (eng) Catégories : Composites à fibres
Fibres à orientation unidirectionnelle
Matériaux -- Allègement
Matières plastiques dans les automobiles
Panneaux de fibresIndex. décimale : 668.4 Plastiques, vinyles Résumé : At the last JEC World, in March, Sabic announced a new, cutting-edge technology for producing lightweight, cost-effective and recyclable vehicle panels using its UDMAX TM tape, a unidirectional fibre-reinforced thermoplastic composite material. Note de contenu : - One-shot process
- Reducing weight and streamlining production
- Fig. 1 : Produced using a highly efficient, one-shotlamination and low-pressure moulding process, the bulkhead featuring UDMAX TM tape is 35% lighter and complies with the ISO 27956 standard for securing cargo in delivery vehicles
- Fig. 2 : UDMAX TM slitted tape (cross wound)
- Fig. 3 : Laminate made out UDMAX TM slitted tape (in fabric form)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33876
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible A safer battery pack for e-vehicles using polyurethane pultrusion technology / Galen Greene in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : A safer battery pack for e-vehicles using polyurethane pultrusion technology Type de document : texte imprimé Auteurs : Galen Greene, Auteur ; Benedikt Kilian, Auteur Année de publication : 2019 Article en page(s) : p. 45-47 Langues : Anglais (eng) Catégories : Matières plastiques dans les automobiles
Piles électriques
Polyuréthanes
Protection anti-chocs
Pultrusion
Véhicules électriquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Driven by concerns about CO2 emissions, climate change and resource depletion, electric mobility is gaining market shres around the world. The evolution of electric mobility from vision to reality is disrupting the automotive industry and giving birth to radically new concepts where electrical components, and above all the battery, are integrated into the vehicle body. Note de contenu : - Battery safety
- Crash protection
- safety first
- Key benefits of polyurethane pultrusion
- Proof of concept - crash tests
- Significant advantages
- Next steps - partnerships to push boundaries
- Fig. 1 : The Covestro Concept battery pack with Baydur PUL : modular profile approach and pultrusion profiles
- Fig. 2 : Schematic sketch of a side-pile crash
- Fig. 3 : Qualitative overview of crash performance with weight and complexity comparisons for the six variants tested ; Variant five delivered the best performance overallPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33877
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible A lightweight solution for battery boxes / Enrico Ali in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : A lightweight solution for battery boxes Type de document : texte imprimé Auteurs : Enrico Ali, Auteur ; Simone Pietta, Auteur Année de publication : 2019 Article en page(s) : p. 48-49 Langues : Anglais (eng) Catégories : Blindage (électricité)
Boitiers
Composites à fibres de verre
Hautes pressions
Matériaux -- Allègement
Matières plastiques dans les automobiles
Moulage par transfert de résine sous vide
Ondes électromagnétiques
Piles électriques
Résistance thermique
Véhicules électriquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : This paper gives a first glimpse of the trailblazing use of composite material integrating a metallic foil for a battery box cover that has the potential for changing the e-mobility industry. Note de contenu : - A hybrid solution
- High-pressure resin transfer moulding
- In-house know-how
- Fig. 1 & 2 : Battery cover in HP-RTMPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33878
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible The road to the 1000-kilometre electric vehicle / Wilfrid Gambade in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : The road to the 1000-kilometre electric vehicle Type de document : texte imprimé Auteurs : Wilfrid Gambade, Auteur Année de publication : 2019 Article en page(s) : p. 50-51 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Impression tridimensionnelle
Matériaux -- Allègement
Matières plastiques dans les automobiles
Polyéthylène à ultra haut poids moléculaire
Véhicules électriquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : Developing an electric vehicle (EV) with a range of 1000 kilometres is not as impossible as many might asume today. As batteries become more and morepowerful, lowering the vehicle weight will be the key challenge to overcome to reach that ultimate goal. But how can manufacturers make cars lighter while at the same time keeping them safe ? Thanks to innovations in composite materials, engineering plastics and additive manufacturing, cars can now be both light and reliable. As a result, Evs are a step closer to a great breakthrough. Note de contenu : - Why lighter is better
- Aerospace leads the way
- No need to compromise on safety
- 1000-kilometre EV : coming soon ?
- Fig. 1 : Today's most pupular family EVs have an average range of 200 to 300 kilometres on a full charge
- Fig. 2 : The weight of an electric vehicle and the size of its battery pack have the greatest impact on its range
- Fig. 3 : Carbon with Dyneema hybrid composites are also lighter than pure-carbon compositesPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33879
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Composites increase machine performance, operating speeds and accuracy / Ondrej Uher in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Composites increase machine performance, operating speeds and accuracy Type de document : texte imprimé Auteurs : Ondrej Uher, Auteur Année de publication : 2019 Article en page(s) : p. 57-59 Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Machines-outils -- Conception et construction
Matériaux -- Allègement
Mousses plastiquesIndex. décimale : 668.4 Plastiques, vinyles Résumé : In automation and machine tool applications, carbon fibre-reinforced composite materials can offer significant productivity, quality and lifecycle cost benefits. Yet their adoption in the manufacturing sector has been relatively slow. In part, this can be attributed to design engineers that are unfamiliar with the properties of composites, underestimating their benefits while overestimating the cost and complexity of their application ; and to some extent, there has been a natural reluctance to change from what is perceived as established manufacturing methods to a new way of machine design and construction. Note de contenu : - Machine tool performance requirements
- Carbon fibre-reinforced composites for machine appplications
- Axial fibre placement technology
- Fibre selection
- Improving vibration stability
- Integration
- Application benefits
- Return on investment
- Fig. 1 : Robot assisted axial filament placement
- Fig. 2 : 3D cellular composite formed into t-slot profiles
- Fig. 3 : Axial fibre placement
- Fig. 4 : Eagle laserPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33880
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Material specs for industrial applications of composite materials / Shuichiro Yoshida in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Material specs for industrial applications of composite materials Type de document : texte imprimé Auteurs : Shuichiro Yoshida, Auteur Année de publication : 2019 Article en page(s) : p. 60-61 Langues : Anglais (eng) Catégories : Composites
SpécificationsIndex. décimale : 668.4 Plastiques, vinyles Résumé : What is the most important thing when using composite materials for a general-purpose industrial application ? Some may say "lowering costs" or "improving moulding techniques". While these opinions are valid, they do not directly lead to relevant solutions. In this paper, FRP Consultant explains the "material specifications" the company considers to be one of the solutions to turn composite materials into general-purpose materials. Note de contenu : - Material specs are a common language defining basic specifications
- Main purpose of composite material specs
- The key is to change producers' perceptions
- Content of material specs
- Reference to the material specs in the drawings
- Fig. 1 : The important role of material specifications
- Fig. 2 : Material specifications and product requirement specifications
- Fig. 3 : Basic structure of a material specPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33881
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible Drilling and trimming CFRP materials using a solid lubricant film / Shigeru Horie in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : Drilling and trimming CFRP materials using a solid lubricant film Type de document : texte imprimé Auteurs : Shigeru Horie, Auteur ; Christoph Regula, Auteur ; Benjamin Schulze, Auteur Année de publication : 2019 Article en page(s) : p. 64-67 Langues : Anglais (eng) Catégories : Composites à fibres de carbone
Lubrifiants
Lubrification
Perçage et alésage
Rubans adhésifs
Surfaces -- Analyse
UsinageIndex. décimale : 668.4 Plastiques, vinyles Résumé : Carbon fibre-reinforced polymer (CFRP) materials are more and more used in various types of applicatons such as aircraft, automotive and wind harvesting systems. As production is product specific and costs are always an issue, trimming and drilling work is of special importance to minimize time and cost while constantly improving quality. Therefore, post-processing of CFRP materials is often accompanied by mechanical works like drilling or edge trimming before further use for asembly, where liquid lubricants are typically applied. High-precision holes, or dimensions (edge cutting) are needed to fulfil the requirements of the subsequent assembly process. Note de contenu : - Testing setup for surface analysis
- Surface analysis
- Overview and future steps
- Lifetime evaluation in drilling use cases
- Recommendation for the use of SLE in machining
- Conclusion and next steps
- Fig. 1 : CFRP sample (lower part) and the corresponding SLE part (upper part - the visible side is adhesive tape) after a trimming experiment
- Fig. 2 : CFRP sample after drilling tests with SLE, after removal of SLE. Position of IR measurement is marked by a red dot
- Fig. 3 : Comparison of cleaned pure CFRP with CFRP next to trimming edge after SLE removal. An additional absorption peak is visible at 1?700-1,750 cm-1, indicating a slight adhesive tape residue remaining on the CFRP after SLE removal
- Fig. 4 : Schematic representation of the clamping sample plate and processing segments
- Fig. 5 : Application of SLE on the good side of the sample plate with drilling process from the back
- Table 1 : Surface free energy of CFRP before and after removing SLE
- Table 2 : XPS results of CFRP surfaces before and after use of SLE (with and without mechanical processing/cleaning)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33882
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Code-barres Cote Support Localisation Section Disponibilité 21273 - Périodique Bibliothèque principale Documentaires Disponible PAEK composite prepreg / Stuart Green in JEC COMPOSITES MAGAZINE, N° 131 (11-12/2019)
[article]
Titre : PAEK composite prepreg : fast and efficient part manufacturing Type de document : texte imprimé Auteurs : Stuart Green, Auteur ; Didier Padey, Auteur ; Gilles Larroque, Auteur ; Justin Merotte, Auteur ; Alexandre Hamlyn, Auteur ; Victorien Merle, Auteur ; Denis Cartier, Auteur Année de publication : 2019 Article en page(s) : p. 70-73 Langues : Anglais (eng) Catégories : Bandes composites
Composites à fibres de carbone -- Propriétés mécaniques
Fibres à orientation unidirectionnelle
Hors autoclave (technologie)
Matériaux -- Imprégnation
Placement automatisé de fibres
Polyaryl éther cétones
Polymères semi-cristallins
Procédés de fabrication
Stratifiés
Technique de la production
Temps de cycle (production) -- RéductionIndex. décimale : 668.4 Plastiques, vinyles Résumé : Coriolis composites and Victrex teamed up to use an automated fibre placement (AFP) process to unlock the potential of VICTREX AE TM 250 UDT. The results showed a significant increase in lay-up speed was possible while achieving industry-acceptable levels of porosity (<2%) for in-situ consolidation. Out-of-autoclave) OoA consolidation showed its potential to reduce the cycle time and energy consumption. Note de contenu : - Automated fibre placement (AFP)
- In-situ consolidation
- Crystallinity (in-situ processing)
- Out-of-autoclave post-processing
- Fig. 1 : VICTREX AE 250 unidirectional carbon fibre-reinforced tape
- Fig. 2 : View of the Coriolis C1 laser assisted AFP head Governing physical mechanisms during laser assisted AFP (adapted from kok, 2018)
- Fig. 3 : Comparison of oven consolidation cycle between VICTREX AE 250 and a conventional high-temperature polymer
- Fig. 4 : Polished optical microsection through an oven-consolidated laminate made from VICTREX AE 250 composite tape laid up on a Coriolis C-Solo machine at 60 m/min. The white circle illustrates the area of polymer flow at a ply-drop. These results are in accordance with CScans performed on entire panels and showing no delamination nor volumetric porosities whatsoever
- Table 1 : In-situ consolidation of VICTREX AE 250 unidirectional tape at constant speed (3 m/min)
- Table 2 : In-situ consolidation of VICTREX AE 250 unidirectional tape at increasing speeds (6-20 m/min)
- Table 3 : Post-consolidation of VICTREX AE 250 unidirectional tape laid-up at increasing speeds (48-60 m/min)
- Table 4 : Mechanical properties comparison between oven-consolidated VICTREX AE 250 composite laminates and press-consolidated laminates against which the data have been normalisedPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33883
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