3D-shaped multilayer fabrics for high-performance, multifunctional composites / Monireh Fazeli in JEC COMPOSITES MAGAZINE, N° 81 (05-06/2013)

[article]  inJEC COMPOSITES MAGAZINE > N° 81 (05-06/2013) . - p. 54-59 Titre : 3D-shaped multilayer fabrics for high-performance, multifunctional composites Type de document : texte imprimé Auteurs : Monireh Fazeli, Auteur ; Adil Mountasir, Auteur ; Gerald Hoffmann, Auteur ; Chokri Cherif, Auteur Année de publication : 2013 Article en page(s) : p. 54-59 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Matériaux Composites à fibres -- Thermoformage Composites à fibres de verre Composites à fibres de verre -- Propriétés mécaniques Construction mécanique Essais dynamiques Fibres continues Polypropylène Production en série Renforts textiles Structures multicouches Structures tridimensionnelles Tissage Traction (mécanique) Index. décimale : 668.4 Plastiques, vinyles Résumé : Fibre-reinforced plastics (FRP) in the form of continious fibre-reinforced thermoplastics composites exhibit a great potential for mass production of complex, load-bearing and recyclable components in automotive and mechanical engineering. The use of thermoplastics matrix materials makes it possible to manufacture lightweight, high-quality complex-shape composites cost-efficiently and with high productivity. To ensure the demanded short cycle times while simultaneously guaranteeing highly specific properties of structural components, the most suitable method is hot pressing, using deep drapable multilayers and 3D-shaped thermoplastic preforms based on thermoplastic hybrid yarns. The advantages of glass fibre/PP hybrid yarns are their homogenous combination of continuous filaments, as well as their great yarn compaction, which permits further textile technological processing. Commercially available yarn materials can be used in widely varying forms, and the individual intra-yarn content percentages can be ajusted to preference oven an exrensive range. 3D-shaped multilayer woven fabrics are suited for the reinforcement od higher-gauge FRP due to the use of thicker and preferably compact fabrics, as their multilayers structure helps minimase the usual stacking of multiple individual reinforcement layers. In this study, hybrid yarns and composite sheets made of multilayers woven fabtics are tested according to their mechanical properties. Note de contenu : - EXPERIMENTAL : Hybrid yarn manufacturing - Weaving technology for 3D-multilayer woven spacer fabric - Thermoforming process - RESULTS AND DISCUSSION : Homogeneous distribution of hybrid yarns - Tensile force testing of GF/PP hybrid yarns Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=22865 [article]

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Biaxial-reinforced tubular fabrics with variable cross-sections / Quentin Bollengier in TECHNICAL TEXTILES, Vol. 65, N° 5 (12/2022)  

[article]  inTECHNICAL TEXTILES > Vol. 65, N° 5 (12/2022) . - p. 267-269 Titre : Biaxial-reinforced tubular fabrics with variable cross-sections Type de document : texte imprimé Auteurs : Quentin Bollengier, Auteur ; Sven Hellmann, Auteur ; Eric Häntzsche, Auteur ; Chokri Cherif, Auteur Année de publication : 2022 Article en page(s) : p. 267-269 Note générale : Bibliogr. Langues : Multilingue (mul) Catégories : Composites à fibres Matériaux -- Renforcement bi-axial Structures multicouches Tricot circulaire Tubes Index. décimale : 677.6 Tissus obtenus par des procédés spéciaux, quelle que soit leur composition : jacquard, feutres tissés et non tissés, tapisseries, tissus ajourés Résumé : Within the IGF research project 20493 BR a new technology for the integral manufacturing of biaxial-reinforced tubular fabrics with variable cross-sections was successfully developed, implemented and tested at the ITM. The tubular multi-layered weft-knitted fabrics feature continuous, uninterrupted reinforcement yarns in both the longitudinal and circumferential directions. Thus, a solid foundation for the efficient serial production of tubular pre-forms in integral design and eventually for the cost-effective production of highly load-bearing FRP tubes with complex geometry was successfully established. Note de contenu : - Objectives - Results : Technology development - Integral manufacturing of biaxial-reinforced tubular fabrics - Fig. 1 : Modified flat knitting machine Aries. 3 and biaxial-reinforced tubular fabrics implemented with it - Fig. 2 : Process sequences of the new stitch transfer on 1 needle bed - Fig. 3 : Implemented device for the warp yarn offset and detailed view of the displaceable yarn guides - Fig. 4 : Realized 3D tubular weft-knitted fabrics with variable diameters in the longitudinal direction En ligne : https://drive.google.com/file/d/1AFB2ftID9i5aTr53gFrRwp_ELbAgvFHu/view?usp=share [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38748 [article]

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Biaxial warp-knitted textiles with symmetrical layers for molted thermoplastic composites / Eveline Hufnagl in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 5 (12/2015)  

[article]  inCHEMICAL FIBERS INTERNATIONAL > Vol. 65, N° 5 (12/2015) . - p. 268-271 Titre : Biaxial warp-knitted textiles with symmetrical layers for molted thermoplastic composites Type de document : texte imprimé Auteurs : Eveline Hufnagl, Auteur ; Matthias Hübner, Auteur ; Paul Matthäi, Auteur ; Chokri Cherif, Auteur Année de publication : 2016 Article en page(s) : p. 268-271 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Composites à fibres Composites thermoplastiques Drapage Essais dynamiques Textiles et tissus à usages techniques -- Propriétés mécaniques Traction (mécanique) Tricot Index. décimale : 677.4 Textiles artificiels Résumé : The results of this research work could contribute to the economical and reproducible processing of thermoplastic FRP components with complex geometrical shapes. Ways of producing innovative, lightweight components could be developed from the results as a prerequisite for extending the range of applications of fiber-reinforced composites and for creating new end-uses. The composite constructions could be used in car and machine building and in the chemical, electrical and electronics industries, as well as in the construction, safety, sports and leisure sectors. Note de contenu : - Construction and samples production - Deformation behavior - a question of incorporating the reinforcing yarns - Composite production and demonstration of their functions - FIGURES : 1. Sensor for recording the stitch tension force - 2. Curves of the knitting yarn tension force at different feed values - 3. Pictures of the structure of the test samples with loose and rigid stitches as a result of changing the knitting yarn tension force - 4. Draping test carried out on the Drapestest device - 5. Puncture penetration test carried out on ITM's test rig - 6. Shear force curves on samples having reinforcing yarns incorporated in line with the stitches and not in line with the stitches - 7. Manual draping tests involving production of a demonstration component using a Z-shaped holder showing half of the tool, the digitized geometry, of the blank produced, draping simulation, of the textile preform and the final component - 8. Tensile strength values of selected yarn-layer stitch-bonded composites (YLSB) En ligne : https://drive.google.com/file/d/1-nTuockqZ_s-u4E1eBa7ReZtE0w5GHGn/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25161 [article]

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CF/AR/thermoplastic hybrid yarns for requirement-based thermoplastic composites / Matthias Overberg in TECHNICAL TEXTILES, Vol. 66, N° 3 (2023)  

[article]  inTECHNICAL TEXTILES > Vol. 66, N° 3 (2023) . - p. 20-24 Titre : CF/AR/thermoplastic hybrid yarns for requirement-based thermoplastic composites Type de document : texte imprimé Auteurs : Matthias Overberg, Auteur ; Anwar Abdkader, Auteur ; Chokri Cherif, Auteur Année de publication : 2023 Article en page(s) : p. 20-24 Note générale : Bibliogr. Langues : Multilingue (mul) Catégories : Composites à fibres Composites thermoplastiques Fibre aramide Fibres de carbone Fibres discontinues Polyamide 6 Produits et matériaux recyclés Texturation par jet d'air Procédé de texturation au cours duquel le fil passe dans une zone turbulente d'un jet d'air à une vitesse supérieure plus rapide que celle avec laquelle il a été étiré sur le côté éloigné du jet. Sous l'action du jet, la structure du fil est ouverte, des boucles sont formés, ensuite la structure du fil est ouverte, des boucles sont formées, ensuite la structure du fil se referme encore. Certaines boucles sont fixées à l'intérieur du fil, d'autres sur sa surface. Un exemple de ce procédé est le procédé Taslan. Index. décimale : 677.4 Textiles artificiels Résumé : Within the framework of the IGF research project (21004 BR/1), material concepts based on 2 yarn formation technologies were realized at the ITM and carbon fiber/aramid /polyamide 6 (CF /AR/PA 6) and recycled carbon fiber/recycled aramid /polyamide 6 (rCF/rAR/PA 6) hybrid yarns for thermo-plastic composites meeting requirements with very good, scalable stiffness, strength, crash and im¬pact property combinations were produced. The influence of carding, draw frame and roving frame (MK1) and air texturing unit (MK2) parameters and fiber volume fractions on the mechanical pro¬perties were analyzed to develop requirements-based and defined engineered yarns and composites based on them. The investigated yarn formation technologies complement or partly compete with each other, but thereby also represent a broad technology spectrum. This generates a broad effect for the application of the results for product development in numerous German small and medium-sized enterprises (SMEs) and often on a few technologies specialized SMEs for textile technology. Note de contenu : - Introduction, problem definition and aim - Engineered yarns based on filament-filament using advanced air texturing technology - Engineered yarns based on staple fiber using advanced roving frame technology - Results (selection) En ligne : https://drive.google.com/file/d/1cFz39SWYRICIxaBmUil6GJHyS0EyyB6c/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39467 [article]

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CF/AR/thermoplastic hybrid yarns for requirement-based thermoplastic composites / Matthias Overberg in MAN-MADE FIBERS INTERNATIONAL, Vol. 73, N° 2 (2023)  

[article]  inMAN-MADE FIBERS INTERNATIONAL > Vol. 73, N° 2 (2023) . - p. 26-30 Titre : CF/AR/thermoplastic hybrid yarns for requirement-based thermoplastic composites Type de document : texte imprimé Auteurs : Matthias Overberg, Auteur ; Anwar Abdkader, Auteur ; Chokri Cherif, Auteur Année de publication : 2023 Article en page(s) : p. 26-30 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Commande de processus Composites à fibres -- Propriétés mécaniques Composites à fibres synthétiques Fibre aramide Fibres de carbone Fibres discontinues Matériaux hybrides Polyamide 6 Texturation par jet d'air Procédé de texturation au cours duquel le fil passe dans une zone turbulente d'un jet d'air à une vitesse supérieure plus rapide que celle avec laquelle il a été étiré sur le côté éloigné du jet. Sous l'action du jet, la structure du fil est ouverte, des boucles sont formés, ensuite la structure du fil est ouverte, des boucles sont formées, ensuite la structure du fil se referme encore. Certaines boucles sont fixées à l'intérieur du fil, d'autres sur sa surface. Un exemple de ce procédé est le procédé Taslan. Index. décimale : 677.4 Textiles artificiels Résumé : Within the framework of the IGF research project (21004 BR/1), material concepts based on 2 yarn formation technologies were realized at the ITM and carbon fiber/aramid/polyamide 6 (CF/AR/PA 6) and recycled carbon fiber/recycled aramid /polyamide 6 (rCF/rAR/PA 6) hybrid yarns for thermoplastic composites meeting requirements with very good, scalable stiffness, strength, crash and impact property combinations were produced. The influence of carding, draw frame and roving frame (MK1) and air texturing unit (MK2) parameters and fiber volume fractions on the mechanical properties were analyzed to develop requirements-based and defined engineered yarns and composites based on them. The investigated yarn formation technologies complement or partly compete with each other, but thereby also represent a broad technology spectrum. This generates a broad effect for the application of the results for product development in numerous German small and medium-sized enterprises (SMEs) and often on a few technologies specialized SMEs for textile technology. Note de contenu : - Introduction, problem definition and aim - Engineered yarns based on filament-filament using advanced air texturing technology - Engineered yarns based on staple fiber using advanced roving frame technology - Results (selection) - Fig. 1a : Schematic representation of the relative strengths and crash or impact properties of CF/AR hybrid composites as a function of the fiber volume fractions - Fig. 1b : Schematic representation of the process chain for realizing the material concepts - Fig. 2 : Developments on the air texturing system according to concept MK1 - Fig. 3 : Modifications, investigations and hybrid yarn of the material concept MK2 - Fig. 4a : Property profiles of the composites based on different material concepts - Fig. 4b : dependence of the composite properties on the fiber volume fractions - Fig. 4c : Demonstrators based on MK1 and MK2 En ligne : https://drive.google.com/file/d/10icpiiXkc80Qu0689AVO4T91vKMDRr1Y/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39487 [article]

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Characterization of thermomechanical tensile behavior of high-performance fiber material / Ayham Younes in CHEMICAL FIBERS INTERNATIONAL, Vol. 65, N° 5 (12/2015)  

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Chitin, chitosan, bio-fibers - preparation, properties and use / Rolf-Dieter Hund in CHEMICAL FIBERS INTERNATIONAL, Vol. 63, N° 4 (12/2013)  

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Chitin, chitosan, bio-fibers - preparation, properties and use / Rolf-Dieter Hund in CHEMICAL FIBERS INTERNATIONAL, (10/2014)  

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Concepts for novel high-performance/metal hybrid yarns for composites with improved damage tolerance / Erik Schmidt in CHEMICAL FIBERS INTERNATIONAL, Vol. 69, N° 3 (09/2019)  

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Holistic development of high-quality composite parts based on automated preforming / Farbod Nezami in JEC COMPOSITES MAGAZINE, N° 103 (03/2016)

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Innovative compression textiles based on novel shape memory yarns / Florian Wieczorek in TECHNICAL TEXTILES, Vol. 65, N° 4 (10/2022)  

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Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures / Anwar Abdkader in CHEMICAL FIBERS INTERNATIONAL, Vol. 67, N° 3 (09/2017)  

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Innovative high-performance hybrid yarns made from recycled carbon fibers for lightweight structures / Anwar Abdkader in CHEMICAL FIBERS INTERNATIONAL, (10/2018)  

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Metal spun yarns from planed metal staple fibers for technical applications / Erik Schmidt in CHEMICAL FIBERS INTERNATIONAL, Vol. 68, N° 4 (12/2018)  

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Metallization of polyimide materials for usage in aerospace / Toty Onggar in TECHNICAL TEXTILES, Vol. 65, N° 5 (12/2022)  

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Metallization of polyimide materials for usage in aerospace / Toty Onggar in MAN-MADE FIBERS INTERNATIONAL, Vol. 73, N° 1 (2023)  

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Metallization of polyimide materials for usage in aerospace / Toty Onggar in MAN-MADE FIBERS INTERNATIONAL, Vol. 73 - Year Book 2023 (2023)  

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Method for the metallization of glass filament yarns / Toty Onggar in CHEMICAL FIBERS INTERNATIONAL, Vol. 66, N° 2 (06/2016)  

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Post-consumer plastics - from yogurt cups to high-quality textiles / Stephanie Lukoschek in TECHNICAL TEXTILES, Vol. 66, N° 2 (2023)  

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Profiled textile reinforcement for concrete applications / Paul Penzel in TECHNICAL TEXTILES, Vol. 67, N° 1 (2023)  

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