“…In the multi-phase category, circular and flat weaving techniques are prominent. Advanced weaving methods such as 3-dimensional (3D) weaving have become increasingly popular, adding structural functionalities to textiles ( Harvey et al., 2019 ; Schegner et al., 2019 ), which could be useful in developing custom-made high-performance TENGs. Figure 4 Schematics of Basic Woven and Knitted Fabric Structures (A–J) Weave patterns depicting (A) plain weave, (B) twill weave, (C) sateen weave, and (D) satin weave.…”
Summary
Triboelectric nanogenerator (TENG) is an upcoming technology to harvest energy from ambient movements. A major focus herein is harvesting energy from human movements through wearable TENGs, which are constructed by integrating nanogenerators into clothing or accessories. Textile-based TENGs, which include fiber, yarn, and fabric-based TENG structures, account for the majority of wearable TENGs, with many designs and applications demonstrated recently. This calls for a comprehensive analysis of textile-based TENG technology, and how the state-of-the-art device optimization concepts can be deployed to construct them efficiently. Concurrently, how advanced engineering concepts and industrial manufacturing techniques, which are bound with fiber, yarn, and fabric-related developments, can be applied into the TENG context for their output enhancement is still under investigation. Herein, we fill this vital gap by analyzing the state-of-the-art developments, upcoming trends, output optimization strategies, scalability, and prospects of the textile-based TENG technology, presenting a textile engineering perspective.
“…In the multi-phase category, circular and flat weaving techniques are prominent. Advanced weaving methods such as 3-dimensional (3D) weaving have become increasingly popular, adding structural functionalities to textiles ( Harvey et al., 2019 ; Schegner et al., 2019 ), which could be useful in developing custom-made high-performance TENGs. Figure 4 Schematics of Basic Woven and Knitted Fabric Structures (A–J) Weave patterns depicting (A) plain weave, (B) twill weave, (C) sateen weave, and (D) satin weave.…”
Summary
Triboelectric nanogenerator (TENG) is an upcoming technology to harvest energy from ambient movements. A major focus herein is harvesting energy from human movements through wearable TENGs, which are constructed by integrating nanogenerators into clothing or accessories. Textile-based TENGs, which include fiber, yarn, and fabric-based TENG structures, account for the majority of wearable TENGs, with many designs and applications demonstrated recently. This calls for a comprehensive analysis of textile-based TENG technology, and how the state-of-the-art device optimization concepts can be deployed to construct them efficiently. Concurrently, how advanced engineering concepts and industrial manufacturing techniques, which are bound with fiber, yarn, and fabric-related developments, can be applied into the TENG context for their output enhancement is still under investigation. Herein, we fill this vital gap by analyzing the state-of-the-art developments, upcoming trends, output optimization strategies, scalability, and prospects of the textile-based TENG technology, presenting a textile engineering perspective.
“…The use of modern weaving technology, on the other hand, enables the single-stage production of final-contour, multilayer and three-dimensional preforms that can be processed directly into a FRP without further preforming steps [2]. This process is referred as direct preforming and has already been successfully transferred into industrial practice for certain applications, e.g.…”
Direct preforming processes have potential for fiber-reinforced semi-finished products, creating 3D structures with strong delamination resistance using double-flat-steel-healds. However, the shedding method limits pattern variety, necessitating alternative options for interlacing diversity. One approach is using weft yarn instead of warp yarn for interlacing. This study explores its impact on mechanical properties, focusing on bending behavior, fiber volume content, and micrograph analysis of infiltrated warp and weft interlaced structures. The result shows interesting differences in mechanical behavior regarding different weave types and test direction as well as communalities within the individual structures.
“…By using the specialshaped tubes, this problem can be avoided. The group of Cherif and colleagues [20][21][22] used a shuttle loom to flatten and weave the T-shaped, L-shaped, and X-shaped tubular structures but also analyzed the forming by a simulation model. This research not only enriches the 3D weaving tubular preforms but also provides better solutions for industrial production.…”
In this research, the self-reinforced structures tube preforms, which are the special-shaped tubular three-dimensional woven preforms, had been manufactured on semi-automatic looms. To prepare special-shaped tubular three-dimensional woven composites with different wall thicknesses and shapes, the vacuum-assisted resin transfer method was used by performing the prepared preform and resin as the reinforcement and matrix. Then, the axial compression performance was tested on a universal material testing machine. The results revealed that both the wall thicknesses and the shape had remarkable effects on the composites’ axial-compression properties. The performance of special-shaped tubular three-dimensional woven composites and normal tubular three-dimensional woven composites were compared and special-shaped tubular three-dimensional woven composites were better. Finally, finite element analysis was adopted in this research. The initial damage, stress evolution, and final failure of special-shaped tubular three-dimensional woven composites had been shown by the analysis. The stress concentration and failure mechanism of the composite materials after axial compression was revealed and the finite element model was correct and can predict the mechanical properties of special-shaped tubular three-dimensional woven composites.
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