Design and Development of 3D Printed High Performance Textile Structures for Composites (original) (raw)
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3D printing of composites: design parameters and flexural performance
Rapid Prototyping Journal, 2020
Purpose 3D printing of composites has a high degree of design freedom, which allows for the manufacture of complex shapes that cannot be achieved with conventional manufacturing processes. This paper aims to assess the design variables that might affect the mechanical properties of 3D-printed fibre-reinforced composites. Design/methodology/approach Markforged Mark-Two printers were used to manufacture samples using nylon 6 and carbon fibres. The effect of fibre volume fraction, fibre layer location and fibre orientation has been studied using three-point flexural testing. Findings The flexural strength and stiffness of the 3D-printed composites increased with increasing the fibre volume fraction. The flexural properties were altered by the position of the fibre layers. The highest strength and stiffness were observed with the reinforcement evenly distributed about the neutral axis of the sample. Moreover, unidirectional fibres provided the best flexural performance compared to the o...
Journal of Materials Research and Technology, 2022
3D printed fiber reinforced composites are replacing metals and thermosetting polymers due to their lightweight structure and mechanical performance. Fused deposition modeling (FDM) is an additive manufacturing technology that can produce complicated functioning parts. Samples of Nylforce composite materials were manufactured at three different raster orientations (0 , 45 , and 90) with the help of a 3D printer. In order to evaluate the mechanical properties of the nylon composites with carbon fibers (CF) and glass fiber (GF); 3-point flexural tests were carried out. The highest stiffness (modulus) was found for nylon þ GF composite at room temperature, indicating that the material can better resist bending forces. On the other hand, the nylon þ CF composite exhibited elastic behavior, lower flexural strength, and higher deflection. Overall, the flexural strength of composites was improved because the interface between the nylon matrix and fibers provided good stress transfer. Dynamic mechanical analysis (DMA) also clearly indicated that the nylon þ GF composite material had maximum storage modulus, loss modulus and complex modulus with low tan d, indicating improved fiber/matrix interfacial interaction and limitation of polymer chain mobility. Moreover, scanning electron microscope (SEM) images revealed that the main drawbacks for nylon composite material were void formation, fiber pull-out, and fiber breakage. Generally, the results of this research provide a unique knowledge base regarding the structural behaviors and the mechanical properties of nylon composites built with 3D printing technology. Finally, the findings of the current research will be beneficial in the application of these composite materials in their end-use.
Mechanical Behaviour of 3D Printed Composite Materials
Fiabilitate şi Durabilitate, 2017
A fused deposition modelling 3D printer device was employed to fabricate 3D polymeric composite structures in order to evaluate their mechanical properties. Several experimental test methodswere used in the current workto characterize the mechanicalbehaviour ofneat polyethylene terephthalate glycol (PETG) and PETG reinforced with carbon fibres. To determine the static compression stiffness and hysteresis of the specimens, compression and cyclic tests were conducted. Considering the obtained results,PETG's stiffness was improved with the embedded ofcarbon fibres,while its damping capacity wasmoderately reduced.
Investigation of Performance Characteristics of 3D Printing Textiles in Terms of Design and Material
Tekstile Konfeksiyon, Fatma Bulat ve Fatma Nur Başaran, 2022
New technologies that are used in the producing and processing of textile surfaces provide significant advantages for the designer. One of the important technologies that offer today's design advantage is three-dimensional "3D" printers. This study attempted to determine the effect of design features used on textile surfaces produced with different 3D printers and materials on performance characteristics. This researchaimed to examine and compare the performance characteristics of 3D printers, the relationships between 3D printers and the different materials required by these printers, and one-piece and multi-pieces designs. Accordingly, textile surfaces were produced with 3D printers and the performance properties of these surfaces were determined. Significant differences were observed in the performance of textiles based on the breaking, bursting and weight determination tests. These differences were discussed in terms of the design's structural characteristics, material and the ways of 3D printing to stacking material. Consequently, although the performances of 3D textiles get the better of one another, their breaking and bursting strengths are found to be lower than the conventional fabrics.