Hybrid Yarn

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Chokri Cherif - One of the best experts on this subject based on the ideXlab platform.

Moniruddoza Ashir - One of the best experts on this subject based on the ideXlab platform.

  • electro mechanical characterization of shape memory alloy Hybrid Yarn based adaptive fiber reinforced plastics
    Journal of The Textile Institute, 2021
    Co-Authors: Moniruddoza Ashir, Eric Hantzsche, Chokri Cherif
    Abstract:

    Shape memory alloys (SMA) are being used for the development of adaptive fiber-reinforced plastics (FRP) with high functional density. During the thermal induced activation of SMA, a barrier layer ...

  • influence of thickness ratio and integrated weft Yarn column numbers in shape memory alloys on the deformation behavior of adaptive fiber reinforced plastics
    Composite Structures, 2019
    Co-Authors: Moniruddoza Ashir, Michael Vorhof, Andreas Nocke
    Abstract:

    Abstract The integration of functional material, such as actuator material, is an essential aspect for the multi-functionality and resource efficiency of fiber-reinforced plastics (FRPs). By integrating a textile-based actuator into reinforcing fabrics during the production process, single axis and intrinsic adaptive FRPs can be produced, and these can change their form according to requirements. However, this paper presents the effect of thickness ratio and integrated weft Yarn column number in shape memory alloys on the deformation behavior of adaptive FRPs. In order to achieve this aim, shape memory alloys were converted into Hybrid Yarn in the form of a core-sheath structure before being textile-technologically integrated into the reinforcing fabrics using weaving technology. The thickness variation was achieved by the warp as well as weft Yarn density and the type of interlacement. These preforms were infused by a thermosetting resin system. The adaptive FRPs were tested electro-mechanically with respect to their maximum deformation. Results reveal that the maximum deformation of adaptive FRPs is enhanced by increasing the thickness ratio and the integrated weft Yarn column number in shape memory alloys.

  • development and mechanical properties of adaptive fiber reinforced plastics
    Journal of Industrial Textiles, 2019
    Co-Authors: Moniruddoza Ashir, Andreas Nocke, Chokri Cherif
    Abstract:

    Textile-based lightweight structures offer various possibilities for the design of tailored structures by the selective choice of materials and their processing into textile semi-finished products and fiber-reinforced plastics. Lightweight structures with a high mechanical load capacity are feasible by developing fiber-reinforced plastics with adaptive properties that are able to adapt their characteristics, e.g. geometry or stiffness, to external influences. Thus, the application potential of fiber-reinforced plastics can be further expanded. In this paper, we present novel adaptive fiber-reinforced plastics based on textile semi-finished products with integrated shape memory alloys and their mechanical characterization. The shape memory alloy is textile technically integrated and converted into friction spun Hybrid Yarn. Next, the produced Hybrid Yarn is integrated with plain, twill and satin woven reinforcement fabric in the weft direction during the shedding operation in weaving. Adaptive fiber-reinfo...

  • development of adaptive hinged fiber reinforced plastics based on shape memory alloys
    Composite Structures, 2017
    Co-Authors: Moniruddoza Ashir, Christoph Theiss, Andreas Nocke, Chokri Cherif
    Abstract:

    Abstract This paper presents the development of adaptive hinged fiber reinforced plastics based on structurally integrated shape memory alloys. To realize this novel smart structure, hinged preforms are realized, shape memory alloys are converted into actuating Hybrid Yarns with tailored adhesion properties using the friction spinning technology, the Hybrid Yarns are integrated on the surface of the hinged preforms by tailored fiber placement and finally the Hybrid Yarn integrated hinged preform is infiltrated by a suitable thermoset resin. Additionally, the deformation behavior of adaptive hinged fiber reinforced plastics is tested and results are evaluated with regard to quasi-static and dynamic aspects. The maximum deformation and the deformation speed on the heating as well as on the cooling cycle strongly depend on the hinge width of adaptive fiber reinforced plastics and the meander distance of the Hybrid Yarn embedded in it.

  • development of innovative adaptive 3d fiber reinforced plastics based on shape memory alloys
    Composites Science and Technology, 2016
    Co-Authors: Moniruddoza Ashir, Andreas Nocke, Lars Hahn, Axel Kluge, Chokri Cherif
    Abstract:

    Abstract The importance of the functionalized Fiber Reinforced Plastics (FRP) is growing steadily in recent years in lightweight application industries. In this paper the design as well as the realization of three-dimensional FRP with integrated textile-based actuators and the validation of their deformation behavior is described. This deformation is obtained by using textile processed Shape Memory Alloy (SMA) materials. The friction spinning technology is used for the production of the shape memory alloy Hybrid Yarn, where the SMA acts as actuating core and glass as well as polypropylene staple fibers act as sheath in order to realize the maximum possible movement of the SMA wire within the composite during current induced activation. The actuating properties of the SMA are achieved by joule heating. In order to validate the influence of the actuating properties of the SMA on the deformation behavior of the 3D FRP, structural constructions are varied. The results show that the actuatory behavioral property of the adaptive FRP is greatly dependent on structural parameters.

Andreas Nocke - One of the best experts on this subject based on the ideXlab platform.

  • Development of a new Hybrid Yarn construction from recycled carbon fibres for high-performance composites: Part IV: Measurement of recycled carbon fibre length:
    Journal of Engineered Fibers and Fabrics, 2020
    Co-Authors: Martin Hengstermann, Anwar Abdkader, Andreas Nocke, Karl Kopelmann, Chokri Cherif
    Abstract:

    Due to the increasing application of carbon fibre–reinforced plastics, the use of recycled carbon fibres can help reduce the tremendous amount of carbon fibre waste growing worldwide. In this conte...

  • influence of thickness ratio and integrated weft Yarn column numbers in shape memory alloys on the deformation behavior of adaptive fiber reinforced plastics
    Composite Structures, 2019
    Co-Authors: Moniruddoza Ashir, Michael Vorhof, Andreas Nocke
    Abstract:

    Abstract The integration of functional material, such as actuator material, is an essential aspect for the multi-functionality and resource efficiency of fiber-reinforced plastics (FRPs). By integrating a textile-based actuator into reinforcing fabrics during the production process, single axis and intrinsic adaptive FRPs can be produced, and these can change their form according to requirements. However, this paper presents the effect of thickness ratio and integrated weft Yarn column number in shape memory alloys on the deformation behavior of adaptive FRPs. In order to achieve this aim, shape memory alloys were converted into Hybrid Yarn in the form of a core-sheath structure before being textile-technologically integrated into the reinforcing fabrics using weaving technology. The thickness variation was achieved by the warp as well as weft Yarn density and the type of interlacement. These preforms were infused by a thermosetting resin system. The adaptive FRPs were tested electro-mechanically with respect to their maximum deformation. Results reveal that the maximum deformation of adaptive FRPs is enhanced by increasing the thickness ratio and the integrated weft Yarn column number in shape memory alloys.

  • development and mechanical properties of adaptive fiber reinforced plastics
    Journal of Industrial Textiles, 2019
    Co-Authors: Moniruddoza Ashir, Andreas Nocke, Chokri Cherif
    Abstract:

    Textile-based lightweight structures offer various possibilities for the design of tailored structures by the selective choice of materials and their processing into textile semi-finished products and fiber-reinforced plastics. Lightweight structures with a high mechanical load capacity are feasible by developing fiber-reinforced plastics with adaptive properties that are able to adapt their characteristics, e.g. geometry or stiffness, to external influences. Thus, the application potential of fiber-reinforced plastics can be further expanded. In this paper, we present novel adaptive fiber-reinforced plastics based on textile semi-finished products with integrated shape memory alloys and their mechanical characterization. The shape memory alloy is textile technically integrated and converted into friction spun Hybrid Yarn. Next, the produced Hybrid Yarn is integrated with plain, twill and satin woven reinforcement fabric in the weft direction during the shedding operation in weaving. Adaptive fiber-reinfo...

  • development of adaptive hinged fiber reinforced plastics based on shape memory alloys
    Composite Structures, 2017
    Co-Authors: Moniruddoza Ashir, Christoph Theiss, Andreas Nocke, Chokri Cherif
    Abstract:

    Abstract This paper presents the development of adaptive hinged fiber reinforced plastics based on structurally integrated shape memory alloys. To realize this novel smart structure, hinged preforms are realized, shape memory alloys are converted into actuating Hybrid Yarns with tailored adhesion properties using the friction spinning technology, the Hybrid Yarns are integrated on the surface of the hinged preforms by tailored fiber placement and finally the Hybrid Yarn integrated hinged preform is infiltrated by a suitable thermoset resin. Additionally, the deformation behavior of adaptive hinged fiber reinforced plastics is tested and results are evaluated with regard to quasi-static and dynamic aspects. The maximum deformation and the deformation speed on the heating as well as on the cooling cycle strongly depend on the hinge width of adaptive fiber reinforced plastics and the meander distance of the Hybrid Yarn embedded in it.

  • development of innovative adaptive 3d fiber reinforced plastics based on shape memory alloys
    Composites Science and Technology, 2016
    Co-Authors: Moniruddoza Ashir, Andreas Nocke, Lars Hahn, Axel Kluge, Chokri Cherif
    Abstract:

    Abstract The importance of the functionalized Fiber Reinforced Plastics (FRP) is growing steadily in recent years in lightweight application industries. In this paper the design as well as the realization of three-dimensional FRP with integrated textile-based actuators and the validation of their deformation behavior is described. This deformation is obtained by using textile processed Shape Memory Alloy (SMA) materials. The friction spinning technology is used for the production of the shape memory alloy Hybrid Yarn, where the SMA acts as actuating core and glass as well as polypropylene staple fibers act as sheath in order to realize the maximum possible movement of the SMA wire within the composite during current induced activation. The actuating properties of the SMA are achieved by joule heating. In order to validate the influence of the actuating properties of the SMA on the deformation behavior of the 3D FRP, structural constructions are varied. The results show that the actuatory behavioral property of the adaptive FRP is greatly dependent on structural parameters.

Ch. Cherif - One of the best experts on this subject based on the ideXlab platform.

  • Development of new Hybrid Yarn construction from recycled carbon fibers (rCF) for high performance composites: Part-II: Influence of Yarn parameters on tensile properties of composites
    'SAGE Publications', 2019
    Co-Authors: Hengsterma M., M. M. B. Hasa, Abdkade A., Ch. Cherif
    Abstract:

    This article reports the successful manufacturing of Hybrid Yarns from virgin staple CF (40 or 60 mm) or recycled staple CF (rCF) by mixing with polyamide 6 (PA 6) fibers of defined length. The Hybrid Yarns are produced using an optimized process route of carding, drawing, and flyer machine. Furthermore, the influence of CF length, CF type (i.e. virgin or rCF), CF volume content, and twist of the Yarn are also investigated regarding the tensile properties of unidirectionally laid (UD) thermoplastic composites. The results show that CF length, Yarn twist, and CF content of composites play a big role on the tensile properties of thermoplastic composites. From the comparison of tensile strength of UD composites produced from 40 and 60mm virgin staple CF, it can be seen that the increase of Yarn twist decreases the tensile strength. However, the effect of twist on the tensile properties of UD composites manufactured from 40mm virgin staple CF is insignificant. The tensile strength of UD thermoplastic composites manufactured from the Hybrid Yarn with 40 and 60mm virgin staple CF and rCF is found to be 771 ± 100, 838 ± β1, and 801 ± 53.4 MPa, respectively, in the case of 87 T/m containing 50 volume% CF

  • Carbon filament Yarn-based Hybrid Yarn for the heating of textile-reinforced concrete
    Sage, 2019
    Co-Authors: M. M. B. Hasa, Offerma M., Haup M., Nocke A., Ch. Cherif
    Abstract:

    In this study, the application of carbon filament Yarn (CFY)-based conductive Hybrid Yarn as the heating element in a textile-reinforced concrete structure is reported. For this purpose, a Hybrid Yarn having a core-sheath structure (the core is made of carbon filament Yarn and the sheath consists of a mixture of short glass and polypropylene fibres) is manufactured by DREF-2000 spinning technique and integrated into textile structure by tailored fibre placement method. Heat can be generated in the concrete structure by passing electric current through the conductive carbon filament Yarn core of the Hybrid Yarn using the principle of resistive heating, where the sheath acts as the protection and isolation layer. From the initial investigations made on a small concrete specimen, important information is gathered and a large concrete slab with integrated conductive Hybrid Yarn is manufactured. The heat ability and the comfort level of the manufactured concrete slab are measured. The investigations have revealed the potential of using such Hybrid Yarn for a pointwise heating of the concrete surface for possible appliance in outdoor furniture

  • carbon fibre reinforced thermoplastic composites developed from innovative Hybrid Yarn structures consisting of staple carbon fibres and polyamide 6 fibres
    Composites Science and Technology, 2018
    Co-Authors: M. M. B. Hasa, Serge Nitsche, Anwa Abdkade, Ch. Cherif
    Abstract:

    Abstract With the increased demand and usage of carbon fibre reinforced composites (CFRP), effective methods to reuse waste carbon fibres (CF), which are recoverable either from manufacturing waste or from end-of-life components, are attracting growing attention. In this paper, the development of innovative core-sheath Hybrid Yarn structures consisting of staple CF and polyamide 6 (PA 6) fibres of 60 mm lengths using a DREF-3000 friction spinning machine with varying machine parameters, such as core to sheath ratio and suction air pressure, is described. Furthermore, uni-directional (UD) CFRP were manufactured based on the developed Hybrid Yarns, and the influence of the processing parameters on tensile properties and CF content of the composites was analysed. UD composites manufactured from the developed Hybrid Yarns possess approximately at least 86% of the tensile strength and Young's modulus of composites produced from virgin CF filament Yarn.

  • development of a new Hybrid Yarn construction from recycled carbon fibers rcf for high performance composites part ii influence of Yarn parameters on tensile properties of composites
    Textile Research Journal, 2017
    Co-Authors: Martin Hengstermann, Anwar Abdkader, M M B Hasan, Ch. Cherif
    Abstract:

    This article reports the successful manufacturing of Hybrid Yarns from virgin staple CF (40 or 60 mm) or recycled staple CF (rCF) by mixing with polyamide 6 (PA 6) fibers of defined length. The hyb...

  • development of new Hybrid Yarn construction from recycled carbon fibers for high performance composites part i basic processing of Hybrid carbon fiber polyamide 6 Yarn spinning from virgin carbon fiber staple fibers
    Textile Research Journal, 2016
    Co-Authors: Marti Hengsterma, M. M. B. Hasa, Anwa Abdkade, N Raithel, Ch. Cherif
    Abstract:

    The availability of a considerable amount of waste carbon fiber (CF) and the increased pressure to recycle/reuse materials at the end of their life cycle have put the utilization of recycled CF (rCF) under the spotlight. This article reports the successful manufacturing of Hybrid Yarns consisting of staple CF cut from virgin CF filament Yarn and polyamide 6 fibers of defined lengths (40 and 60 mm). Carding and drawing are performed to prepare slivers with improved fiber orientation and mixing for the manufacturing of Hybrid Yarns. The slivers are then spun into Hybrid Yarns on a flyer machine. The investigations reveal the influence of fiber length and mixing ratio on the quality of the card web, slivers and on the strength of the Hybrid Yarns. The findings based on the results of this research work will help realize value-added products from rCF on an industrial scale in the near future.

A Das - One of the best experts on this subject based on the ideXlab platform.

  • influence of friction spun Yarn and thermally bonded roving structures on the mechanical properties of flax polypropylene composites
    Industrial Crops and Products, 2019
    Co-Authors: Mahadev Bar, Ramasamy Alagirusamy, A Das
    Abstract:

    Abstract The main objective of this work is to study the effect of composite architecture on the mechanical properties of flax reinforced polypropylene (PP) composites. In this context, two different Hybrid Yarn structures using flax and polypropylene (PP) fibres have been produced; one, through the friction spinning method and the other through thermal bonding of blended roving. The friction spun Yarn (FSY) has a core-sheath type of Yarn structure, whereas the thermally bonded roving (TBR) has a blended flax/ PP distribution in its structure. The flax content in both Yarn structures is varied at 40 wt. %, 50 wt. % and 60 wt. %, respectively. Further, these Hybrid Yarns are consolidated to fabricate unidirectional composite samples and the resultant composites are tested accordingly. It is observed that the tensile and flexural strengths of all composite specimens increase with increasing flax content. While the impact strength of FSY-compressed composite decreases with increasing flax content and in case of TBR-compressed composite, it increases with increasing flax content. At constant flax content, the TBR-compressed composites demonstrate better tensile, flexural and impact properties than FSY-compressed composites.

  • properties of flax polypropylene composites made through Hybrid Yarn and film stacking methods
    Composite Structures, 2018
    Co-Authors: Mahadev Bar, R Alagirusamy, A Das
    Abstract:

    Abstract In the present study, two distinguishable unidirectional composite structures have been produced using compression molding technique. Among these two, one is made through conventional film stacking (FSC) method while the other structure is made after consolidating the DREF spun Hybrid Yarns (DYC). In both cases, low twisted, MAgPP treated flax Yarns are used as reinforcement and polypropylene (PP) is used as matrix. Effects of fibre content on both composite structures are studied at 40%, 50% and 60% flax contents respectively. It has been observed that irrespective of composite structure, the tensile and flexural properties of the composite samples increase with increasing flax content but the impact strength decreases with increasing flax content. However, at constant fibre volume fraction, the DYC composites demonstrate better properties than the FSC composites. This is mainly due to better fibre-matrix distribution and lower void content of the DYC composites than the FSC composites.

  • effect of interface on composites made from dref spun Hybrid Yarn with low twisted core flax Yarn
    Composites Part A-applied Science and Manufacturing, 2018
    Co-Authors: Mahadev Bar, A Das, R Alagirusamy
    Abstract:

    Abstract In the present work, the influence of interface and Hybrid Yarn structure on flax-PP based unidirectional composite properties have been studied thoroughly. Flax-PP based core-sheath structured DREF spun Hybrid Yarns are manufactured after varying the core Yarn twist and sheath percentage at three different levels and using MAgPP treated and untreated flax Yarn as core. These Hybrid Yarns are consolidated to manufacture unidirectional composite samples and the resultant composites are tested accordingly. It is observed that MAgPP treatment of the core flax Yarn improves the tensile and flexural properties of the Hybrid Yarn reinforced unidirectional composites while impact strength decreases after the treatment. A negative impact on the tensile and flexural properties of the unidirectional composite samples is observed with increasing core twist and sheath content of the reinforcing Hybrid Yarn. The impact strength of the composite samples increases for similar changes in Hybrid Yarn parameters.

  • electromagnetic shielding effectiveness of carbon stainless steel polypropylene Hybrid Yarn based knitted fabrics and their composites
    Journal of The Textile Institute, 2018
    Co-Authors: Krishnasamy Jagatheesan, A Das, Alagirusamy Ramasamy, A. Basu
    Abstract:

    AbstractIn this study, a range of conductive Hybrid knitted fabrics and their composites have been investigated for shielding effectiveness in the frequency ranges of 50 MHz to 1.5 GHz (low frequen...

  • study of aperture size and its aspect ratio of conductive Hybrid Yarn woven fabric on electromagnetic shielding effectiveness
    Fibers and Polymers, 2017
    Co-Authors: Krishnasamy Jagatheesan, A Das, Alagirusamy Ramasamy, A. Basu
    Abstract:

    The influence of aperture aspect ratio and its size on shielding effectiveness of grid fabric made up of carbon and stainless steel (SS) has been investigated in this article. The carbon and stainless steel based Hybrid Yarn was prepared by direct twisting machine and a woven grid fabric was prepared from the Hybrid Yarn by using CCI sample loom with varying warp and weft densities. The fabric samples were analyzed for shielding effectiveness (SE) in low frequency range (50 MHz to 1.5 GHz) using coaxial transmission line holder and a vector network analyzer. It has been observed that conductive Hybrid Yarns placed in one direction of the fabric showed polarization effect with the resonance peak at 0.65 GHz. The grid fabric having conductive Yarns in both the directions showed larger attenuation than the unidirectional (UD) grid fabric. In addition, fabric made-up of carbon filaments showed higher attenuation level than that of SS filaments due to its larger conductivity. When the both carbon and stainless steel are introduced as Hybrid Yarn in the fabric, a maximum SE was observed. In addition, effect of orientation of fabric layers on SE has been investigated. The increase in number of fabric layers increased the SE to a certain frequency. The carbon UD fabrics with 0°/45° (or) 0°/45°/90° showed larger SE than the fabrics with other orientation angles. The similar behavior was observed for SS UD fabrics. The developed fabrics can be used as polarization attenuator, shielding mesh, etc.

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