Development of three-dimensional profiled woven fabrics on narrow fabric looms

Fazeli, Monireh; Kern, Martin; Hoffmann, G. W.; Cherif, Chokri

doi:10.1177/0040517515606361

Cited by 10 publications

(11 citation statements)

References 3 publications

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“…It is possible to manufacture the 3D woven structures on a conventional weaving machine for two-dimensional (2D) fabrics. 24 The node elements discussed in this paper are produced on a modern narrow shuttle loom supplied by Mageba Textilmaschinen GmbH & Co. KG (Bernkastel-Kues, Germany). Node elements were realized with carbon filament yarn HTS40 (12K, 800 tex) from Toho Tenax Europe (Wuppertal, Germany).…”

Section: Methodsmentioning

confidence: 99%

Geometrical design and forming analysis of three-dimensional woven node structures

Hübner

Fazeli

Gereke

et al. 2016

Textile Research Journal

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Structural frames have been established in many technical applications and typically consist of interconnected profiles. The profiles are commonly joined with node elements. For lightweight structures, the use of composite node elements is expedient. Due to the anisotropic mechanical properties of the fibers, high demands are placed on the orientation of the fibers in the textile reinforcement structure. A continuous fiber course around the circumference and at the junctions is necessary for an excellent force transmission. A special binding and forming process was developed based on the weaving technology. It allows the production of near-net-shaped node elements with branches in any spatial direction, which meet the requirements of load-adjusted fiber orientation. The principles by which these three-dimensional (3D) node elements are converted into a suitable geometry for weaving as a net shape multilayer fabric are reported. The intersections of the branches are described mathematically and flattened to a plane. This is the basis for the weave pattern development. Forming simulations on the macro- and meso-scales complement the analyses. A macro-scale model based on the finite element method (FEM) is used to verify the general formability and the accuracy of the flattenings. Since yarns are pulled through the textile structure in the novel forming process, the required tensile forces and the pulling lengths of the individual yarns are analyzed with a meso-scale FEM model. The flattening for two different node structures is realized successfully, and the simulation proves formability. Furthermore, the necessary forming forces are determined. Finally, the developed method for flattening the 3D geometry is suitable for the design of a variety of spatial node structures and the simulation supports the design of automated forming processes.

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Section: Methodsmentioning

confidence: 99%

Geometrical design and forming analysis of three-dimensional woven node structures

Hübner

Fazeli

Gereke

et al. 2016

Textile Research Journal

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“…A fabric design method that changes fabric tissues has been reported. [15] Therefore, 3DWVT composites made of 3DWVT fabrics will be valued because the low cost and high performance. Zhou [3,16] designed a three-dimensional woven variable-thickness composite by changing the weft yarn density and modeled it with mathematics.…”

Section: Introductionmentioning

confidence: 99%

Bending property of novel 3D woven variable thickness composites: Experiment and finite element analysis

et al. 2023

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Variable thickness composites are essential engineering materials which have been used in various high‐performance products. However, the commonly used variable thickness composites are mainly lamination, which is prone to delamination and reduce the overall performance under load. To solve this problem, 3D woven fabrics with integrity and continuous variable thickness have been designed and weaved on ordinary looms using basalt yarns. The resin‐based variable thickness composites have been prepared by vacuum‐assisted resin transfer molding (VARTM) process, and two different laminated composites have been produced for comparison. Compared with the two kinds of laminations, the bending strength of the 3D woven variable thickness (3DWVT) composites is increased by 12.28% and 16.22% under positive load; 16.74% and 17.08% under negative load. Finally, the meso‐finite element simulation analysis of the bending performance of 3DWVT composites was carried out by using the meso‐finite element analysis (FEA), and the damage mechanism and failure mode were explored.

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“…However, the 2D weaving loom with some modifications was also used to weave 3D woven reinforcement for composites, including composite T-joints. 24 The use of conventional weaving illustrated, through various research studies, 6,8,18,21,[25][26][27][28][29] that the profiled reinforcements were able to be fabricated by the folding method where the reinforcements were woven in a flat configuration with pre-positioned bifurcations. After weaving, the reinforcements could be opened up into the desired 3D shapes.…”

mentioning

confidence: 99%

Effect of crossing warp architecture on tear strength of 3D orthogonal woven T-shaped reinforcements

Wei,

Chen

2024

Textile Research Journal

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T-shaped textile composites reinforced by two-dimensional laminates and simple forms of three-dimensional reinforcements are susceptible to tear failure and delamination at the junction. To address these issues and enhance the tear resistance of composite T-joints, 10 types of crossing warp architecture based on three-dimensional woven orthogonal structures were designed, manufactured and characterized with the aim of optimizing the reinforcement architecture. The assessment of the in-plane mechanical behavior was carried out by a tensile tear load applied to the two flanges of the T-shaped reinforcements. The employment of crossing warp architecture effectively enhanced stiffness, tensile strength, and failure strain. Resistance to the failure of the reinforcement was increased as more crossing warp yarns were employed. To further optimize the crossing warp architecture for reinforcement development, the internal and external crossing arrangements were compared. The new finding was regardless of the crossing warp proportions, the external crossing warp led to a higher resistance to the tear force for the reinforcement than the internal crossing warp. The stiffness and tensile strength of the external crossing warp reinforcements exhibited notable improvement, with a maximum increase of 49.1% and 31.1% respectively, compared with that of the internal warp crossing counterparts. The findings in this research will be useful in manufacturing composite T-joints to tailor the reinforcement architecture with different crossing proportions and arrangements for meeting the required mechanical properties.

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Development of three-dimensional profiled woven fabrics on narrow fabric looms

Cited by 10 publications

References 3 publications

Geometrical design and forming analysis of three-dimensional woven node structures

Geometrical design and forming analysis of three-dimensional woven node structures

Bending property of novel 3D woven variable thickness composites: Experiment and finite element analysis

Effect of crossing warp architecture on tear strength of 3D orthogonal woven T-shaped reinforcements

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