Title: Finite Element Simulation and Mathematical Modeling of High-Elongation Rate Rib 1*1 Weft-Knitted Fabric

Authors: Koorosh Delavari, Taejoon Park, Mostafa Elnaggar, Madhura Athale, Farhang Pourboghrat

DOI: 10.33599/nasampe/c.24.0341

Abstract: Different structures of fabrics cause different mechanical performances in textile-reinforced composites. The focus of this study is modeling and FE simulation of the Rib 1×1 weft-knitted fabric, serving as a reinforcement structure for composite materials. Rib 1×1 weft-knitted fabrics, known for their high-rate elongation property, exhibit different behaviors when used as reinforcement in composites or as dry fabric. Mathematical equations are generated to model the geometry of the yarns within the fabric structures. These equations are scripted in Python and utilized to create the model in Abaqus. The model can be generated by simply determining basic measured parameters of the fabrics, including loop density, yarn diameter, and fabric thickness. Uniaxial tensile tests were numerically simulated and performed in both longitudinal and transverse directions. The deformations of the fabric resulted from the FE simulation in both longitudinal and transverse directions are similar to those of real experiments. The force-extension curves of samples from the finite element simulations perfectly match those of experiments. The FE simulations and experimental tests produced nearly identical force-extension curves, confirming the precision of the FE model. The results show how the exact geometry of fabrics, represented in real dimensions of experiments, can accurately predict the mechanical behavior of fabrics.

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Conference: CAMX 2024 | San Diego CA

Publication Date: 2024/9/9

SKU: TP24-0000000341

Pages: 13

Price: $26.00