Title Improvement of mechanical properties of 2D and 3D fiber reinforced polymer composites for automotive structures /
Translation of Title 2D ir 3D pluoštu armuotų polimerinių kompozitų mechaninių savybių tobulinimas automobilių konstrukcijose.
Authors Vaniyambadi Ravikumar, Shriram
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Pages 61
Keywords [eng] automotive structures ; nanofillers ; mechanical properties ; 2D fibers ; 3D fibers
Abstract [eng] This project aims to investigate the impact of carbon-based multi-functional nano filters on conventional 2D and 3D glass fiber woven composites in improved mechanical properties. The first half of this research paper includes a literature analysis on polymer composites used in-vehicle systems, different types of nanofillers, research on conventional 2D glass fibres and 3D glass fibres, polymer composite manufacturing processes, and mechanical properties of 2D and 3D glass fibres with the effect of nanofillers and potential application of the hybrid materials in the automotive industry. Experimental analysis carried out to investigate the mechanical properties of 2 dimensional and 3-dimensional Glass fibres. The materials used for this project are 2D plain woven glass fiber, which is widely used in the automobile industry, and 3D orthogonal woven glass fiber, which is slowly being used in the production of modern automotive parts. The fiber orientation for 2D glass fiber was in 0 degrees, and the fiber orientations for 3D woven fibres were 0 (warp) and 90 (weft) degrees as loading direction. Hand layup was used to manufacture 2D glass fiber polymer composites, and vacuum infusion was used to manufacture 3D glass fiber composites. To compare the properties of the composites pure matrix and fibres embedded with 0.25wt % CNT were used. Considering the composite's fibres used in automotive structures four separate experimental tests were performed, Based on ISO standards. These experiments were selected to simulate the forces acting on a vehicle's structure, Tensile (ISO 527-4), Flexural (ISO 14125), Charpy impact (ISO 179), and Interlaminar shear (ISO 14130). The mechanical properties of 2D glass fiber embedded with a 0.25 wt % CNT and 3D warp pure matrix and 3D weft 0.25 wt% CNT composites show significant improvement. As compared to 2D composites, the impact and interlaminar shear properties of 3D composites were substantially increased. 2D composites with nanofillers and 3D composites with pure matrix and with nanofillers have a better strength to weight ratio, higher impact tolerance, and significant damage propagation and can be extensively used in the future for the production of automotive structures decrease on the overall fuel consumption and significantly reduce vehicle weight while making the component resilient to minor and major damage and improving crashworthiness.
Dissertation Institution Kauno technologijos universitetas.
Type Master thesis
Language English
Publication date 2021