Multi-layered sensor yarns for in situ monitoring of textile reinforced composites

Häntzsche, Eric; Onggar, Toty; Nocke, Andreas; Hund, Rolf-Dieter; Cherif, Chokri

doi:10.1088/1757-899x/254/4/042012

Cited by 7 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The newly developed warp yarn manipulation system is suitable for a modular extension of the multiaxial warp knitting process in order to produce 2D net-shape NCF with continuous edge-strands, as well as grid-like and closed multiaxial structures (base fabric) with structural or functional yarn integration (e.g., sensors for structural health monitoring according to 35 ; Figure 22(a)), according to the force direction or formation of the component. Furthermore it is possible to produce textile structures with variable widths (Figure 22(b)).…”

Section: Further Application Areasmentioning

confidence: 99%

Development of a highly various warp yarn manipulation system for the fabrication of 2D net-shape non-crimp-fabrics for highly material efficient concrete reinforcements

Penzel,

Hahn,

Klug

et al. 2023

Journal of Industrial Textiles

View full text Add to dashboard Cite

Textile reinforcements have revolutionized many industries, most of all aerospace, automotive and building. Due to its high performance and the significant increased lightweight potential, they have established themselves as an efficient and sustainable alternative to conventional materials. However, in view of the increasing demand of an ever growing population in contrast to a scarcity of resources and urge of material efficiency in the face of climate change, novel technologies for highly material efficient products in large-scale productions are required. In this regard, a major research field involves the multiaxial warp-knitting technique for the production of high performance textile preforms. In several steps, this technology has been further developed to enable the production of application-specific and bionic-inspired textile preforms, which are characterized by a force compliant and multi-material design. Yet the structural possibilities are still limited. This article presents a novel developed warp yarn manipulation system for multiaxial warp-knitting machines. The system enables the fabrication of 2D net-shape non-crimp-fabrics (NCF) made of up to 16 single warp yarns that specify by an alternating diagonally offset and overlapping edge-strand. This structure is suitable for the use as textile lattice girder for reinforcing concrete slab structures Hereby the developed warp yarn manipulation system allows highly various structural parameters of the 2D net-shape NCF for highest material efficiency and product variety. The technological development is discussed in means of the constructive and electronic control design as well as a specific application example for new net-shape reinforcement structures.

show abstract

Section: Further Application Areasmentioning

confidence: 99%

Development of a highly various warp yarn manipulation system for the fabrication of 2D net-shape non-crimp-fabrics for highly material efficient concrete reinforcements

Penzel,

Hahn,

Klug

et al. 2023

Journal of Industrial Textiles

View full text Add to dashboard Cite

show abstract

“…Moreover, these yarns are indispensable for information transport. Thus, for example, data collected in mechanical structural health monitoring of critical components or in wound monitoring in the medical sector and nursing industry are transported by means of electrically conductive yarns [4][5][6][7]. Furthermore, the development of smart textiles and functional fiber composites is inconceivable without electrically conductive yarns, since many functions are based on the transmission of signals and the storage of electrical energy [8,9].…”

Section: Introductionmentioning

confidence: 99%

Melt Spinning of Elastic and Electrically Conductive Filament Yarns and their Usage as Strain Sensors

Probst

Wollmann

Mersch

et al. 2022

SSP

View full text Add to dashboard Cite

Electrically conductive fibers are required for numerous fields of application in modern textile technology. They are of particular importance in the manufacturing of smart textiles and fiber composite systems with textile-based sensor and actuator systems. Elastic and electrically conductive filaments can be used as strain sensors for monitoring the mechanical loading of critical components. In order to produce such sensorial filaments, thermoplastic polyurethane (TPU) is compounded with carbon nanotubes (CNT) and melt spun. The mechanical performances of filaments produced at different spinning speeds and containing different amounts of CNT were tested. Furthermore, the correlation between the specific electrical resistance of the filaments and the mechanical strain were analyzed depending on the CNT-content and the spinning speed.

show abstract

“…New developments in the smart textiles sector are inconceivable without electrically conductive fibers. For instance, they can transmit the data collected during wound monitoring [ 5 , 6 ] or mechanical structural health monitoring of critical components [ 7 , 8 , 9 ]. Furthermore, they are essential for the development of novel, wearable devices [ 10 , 11 , 12 ] and the storage of electrical energy [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Melt Spinning of Highly Stretchable, Electrically Conductive Filament Yarns

et al. 2021

View full text Add to dashboard Cite

Electrically conductive fibers are required for various applications in modern textile technology, e.g., the manufacturing of smart textiles and fiber composite systems with textile-based sensor and actuator systems. According to the state of the art, fine copper wires, carbon rovings, or metallized filament yarns, which offer very good electrical conductivity but low mechanical elongation capabilities, are primarily used for this purpose. However, for applications requiring highly flexible textile structures, as, for example, in the case of wearable smart textiles and fiber elastomer composites, the development of electrically conductive, elastic yarns is of great importance. Therefore, highly stretchable thermoplastic polyurethane (TPU) was compounded with electrically conductive carbon nanotubes (CNTs) and subsequently melt spun. The melt spinning technology had to be modified for the processing of highly viscous TPU–CNT compounds with fill levels of up to 6 wt.% CNT. The optimal configuration was achieved at a CNT content of 5 wt.%, providing an electrical resistance of 110 Ωcm and an elongation at break of 400%.

show abstract

Multi-layered sensor yarns for in situ monitoring of textile reinforced composites

Cited by 7 publications

References 10 publications

Development of a highly various warp yarn manipulation system for the fabrication of 2D net-shape non-crimp-fabrics for highly material efficient concrete reinforcements

Development of a highly various warp yarn manipulation system for the fabrication of 2D net-shape non-crimp-fabrics for highly material efficient concrete reinforcements

Melt Spinning of Elastic and Electrically Conductive Filament Yarns and their Usage as Strain Sensors

Melt Spinning of Highly Stretchable, Electrically Conductive Filament Yarns

Contact Info

Product

Resources

About