CAPAAL and CAPET – New Materials of High-Strength, High-Stiff Hybrid Laminates

Wielage, B.; Nestler, Daisy; Steger, Heike; Kroll, Lothar; Tröltzsch, Jürgen; Nendel, Sebastian

doi:10.1007/978-3-642-17384-4_3

Cited by 23 publications

(25 citation statements)

References 7 publications

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“…For this purpose, it is necessary to identify possibilities to force specific types of damage in order to establish comparability between laminates. Furthermore, the described methods have to be verified for standard laminates such as GLARE, CAPAAL or CAPET [ 48 ] in order to address industrial application fields. In addition, the destruction process in the described experiment is always accompanied by a deformation, the influence of which has to be analysed in subsequent studies.…”

Section: Discussionmentioning

confidence: 99%

Monitoring the Structural Health of Glass Fibre-Reinforced Hybrid Laminates Using Novel Piezoceramic Film

Schmidt

Graf

Decker

et al. 2020

Sensors

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This work investigates a new generation structural health monitoring (SHM) system for fibre metal laminates (FML) based on an embedded thermoplastic film with compounded piezoceramics, termed piezo-active fibre metal laminate (PFML). The PFML is manufactured using near-series processes and its potential as a passive SHM system is being investigated. A commercial Polyvinylidene fluoride (PVDF) sensor film is used for comparative evaluation of the sensor signals. Furthermore, thermoset and thermoplastic-based FML are equipped with the sensor films and evaluated. For this purpose, static and dynamic three-point bending tests are carried out and the data are recorded. The data obtained from the sensors and the testing machine are compared with the type and time of damage by means of intelligent signal processing. By using a smart sensor system, further investigations are planned which the differentiation between various failure modes, e.g., delamination or fibre breakage.

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Section: Discussionmentioning

confidence: 99%

Monitoring the Structural Health of Glass Fibre-Reinforced Hybrid Laminates Using Novel Piezoceramic Film

Schmidt

Graf

Decker

et al. 2020

Sensors

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“…Die Zielstellung bei der Erzeugung der Faser‐Folien‐Bändchen besteht in einer sehr guten, flächigen Ausbreitung der Einzelfilamente mit möglichst wenigen Filamentlagen, um kurze Fließwege der thermoplastischen Schmelze beim Konsolidieren zu gewährleisten. Für weitere Ausführungen zum Herstellungsprozess der faserverstärkten Halbzeuge wird auf Nestler et al [–] verwiesen.…”

Section: Experimentellesunclassified

“…Innerhalb dieses Beitrages steht als Oberflächenbehandlung das mechanische Strahlen im Mittelpunkt. Dieses Verfahren ist seit vielen Jahren bekannt und hat sich im Rahmen bisheriger Untersuchungen der Autoren [–] als geeignet und vor allem effizient erwiesen. Zudem wird durch das mechanischen Strahlen ein Eintrag von Druckeigenspannungen erwartet, welcher bereits für sphärische SiO 2 ‐Partikel in bei einer Aluminium‐ und Titanlegierung nachgewiesen wurde.…”

Section: Experimentellesunclassified

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Thermoplastische Hybridlaminate mit variabler Metallkomponente

Nestler

Jung

Arnold

et al. 2014

Mat.-wiss. u. Werkstofftech

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In Hybridlaminaten werden die positiven Eigenschaften metallischer und faserverstärkter polymerer Komponenten miteinander kombiniert. Vorteile der thermoplastischen Kunststoffkomponente, wie z. B. Umformbarkeit und Recyclingfähigkeit sowie Großserientauglichkeit, bieten einen herausragenden Vorteil gegenüber duroplastischen Matrices. Zur Herstellung der Hybridlaminate werden in einem ersten Schritt Endlosfasern und Thermoplastfolien zu unidirektional faserverstärkten Tapes vorkonsolidiert. Anschließend werden diese belastungsgerecht mit der metallischen Komponente verpresst, wobei das Interface zwischen faserverstärktem Thermoplast und der metallischen Folie eine entscheidende Rolle spielt.Im vorliegenden Beitrag werden Hybridlaminate mit kohlenstofffaserverstärktem Polyamid (CF-PA6) als Kernschichten und glasfaserverstärktem Polyamid (GF-PA6) als Zwischenschicht zur metallischen Komponente untersucht. Bei den Laminaten kommt ein 2/1-sowie 3/2-Aufbau mit zwei bzw. drei Metalllagen sowie einer bzw. zwei Lagen faserverstärkten Kunststoffes zum Einsatz. Als metallische Folie werden die Aluminiumlegierung EN AW-6082 und die Titanlegierung Ti3Al2,5V (Grade 9) verwendet. Die Laminatherstellung, die Entwicklung und die Einstellung des Interfaces sowie die Evaluierung der mechanischen Eigenschaften werden im Beitrag diskutiert.Schlüsselwörter: hybride Laminate / faserverstärkte Thermoplaste / Interface Engineering / mechanische Eigenschaften / CAPAAL ® Hybrid laminates combine the positive properties of the metal and fibre reinforced plastic (FRP) components. Advantages of the FRP, like formability, recyclability as well as suitability for mass production, provide an outstanding advantage over thermosetting matrices. For the production of the hybrid laminates, at first continuous fibers and thermoplastic films are pre-consolidated to fibre-reinforced unidirectional tapes. Subsequently, these are pressed together with the metal component in a loadcapable optimized arrangement. Thereby the interface between the FRP and the metal foils is of crucial importance. This paper focuses on hybrid laminates with carbon-fiber reinforced polyamide (CF-PA6) functioning as core layers and glass-fiber reinforced polyamide (GF-PA6) as intermediate layers between the centre and metal component. Laminates in 2/1 and 3/2 structure with two respectively three metal layers and one respectively two FRP layers are examined. For the metal foil, the aluminium alloy EN AW-6082 and

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“…After a short parameter variation, it was possible to find the appropriate setting and produce hybrid laminates with sensor functionality. Process chain for mass production-enabled manufacturing of hybrid laminates: 1 Foil extrusion, 2 Joining, 3 Forming, 4 Polarization, 5 Signal Processing.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Laminate for Haptic Input Device with Integrated Signal Processing

et al. 2018

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Featured Application: haptic input device for car interior or structural health monitoring crash relevant components.Abstract: Achieving lightweight construction through only material substitution does not realize the full potential of producing a lightweight material, hence, it is no longer sufficient. Weight-saving goals are best achieved through additional function integration. In order to implement this premise for mass production, a manufacturing process for joining and forming hybrid laminates using a new tool concept is presented. All materials used are widely producible and processable. The manufactured cover of an automotive center console serves to demonstrate a human interface device with impact detection and action execution. This is only possible through a machine learning system, which is implemented on a small-and thus space-and energy-saving-embedded system. The measurement results confirm the objective and show that localization was sufficiently accurate.

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CAPAAL and CAPET – New Materials of High-Strength, High-Stiff Hybrid Laminates

Cited by 23 publications

References 7 publications

Monitoring the Structural Health of Glass Fibre-Reinforced Hybrid Laminates Using Novel Piezoceramic Film

Monitoring the Structural Health of Glass Fibre-Reinforced Hybrid Laminates Using Novel Piezoceramic Film

Thermoplastische Hybridlaminate mit variabler Metallkomponente

Hybrid Laminate for Haptic Input Device with Integrated Signal Processing

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