Strength analysis of 3D printed carbon fibre reinforced thermoplastic using experimental and numerical methods

Ghebretinsae, Fithawi; Mikkelsen, Ove; Akessa, Adugna Deressa

doi:10.1088/1757-899x/700/1/012024

Cited by 30 publications

(18 citation statements)

References 12 publications

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“…Its principle is the same as that of FDM. It can print and add carbon fiber and other reinforced material wires, which directly enhances the performance of printing products [ 67 , 68 , 69 ].…”

Section: 3d Printing Of Conductive Carbon Materialsmentioning

confidence: 99%

A Review of Conductive Carbon Materials for 3D Printing: Materials, Technologies, Properties, and Applications

et al. 2021

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Carbon material is widely used and has good electrical and thermal conductivity. It is often used as a filler to endow insulating polymer with electrical and thermal conductivity. Three-dimensional printing technology is an advance in modeling and manufacturing technology. From the forming principle, it offers a new production principle of layered manufacturing and layer by layer stacking formation, which fundamentally simplifies the production process and makes large-scale personalized production possible. Conductive carbon materials combined with 3D printing technology have a variety of potential applications, such as multi-shape sensors, wearable devices, supercapacitors, and so on. In this review, carbon black, carbon nanotubes, carbon fiber, graphene, and other common conductive carbon materials are briefly introduced. The working principle, advantages and disadvantages of common 3D printing technology are reviewed. The research situation of 3D printable conductive carbon materials in recent years is further summarized, and the performance characteristics and application prospects of these conductive carbon materials are also discussed. Finally, the potential applications of 3D printable conductive carbon materials are concluded, and the future development direction of 3D printable conductive carbon materials has also been prospected.

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Section: 3d Printing Of Conductive Carbon Materialsmentioning

confidence: 99%

A Review of Conductive Carbon Materials for 3D Printing: Materials, Technologies, Properties, and Applications

et al. 2021

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“…For the finite element analysis of CFRP2-GFRP sandwich structures, several simplifying hypotheses were made [53][54][55]: the constituents have a linear elastic behavior, the matrix (polyamide) has isotropic properties; chopped fibers are transverse isotropic; the fiber matrix has a perfect adhesion and does not show gaps or defects present in the tested sandwich specimens. The modulus of elasticity, used in the FEA model, for CFRP1 has the value of 8110 MPa, and for the fiberglass core the value is 4000 MPa.…”

Section: Finite Element Analysis Of the Fiber-reinforced Composite Sa...mentioning

confidence: 99%

“…The modulus of elasticity, used in the FEA model, for CFRP1 has the value of 8110 MPa, and for the fiberglass core the value is 4000 MPa. The Poisson's ratio was assumed to be that of the composite filament, so that for the carbon fiber skin, it had the value of 0.3 [55,56], and for the fiberglass, 0.25 [57]. Finite element analysis of composite sandwich structures was used following two aspects: comparative study between the failure behavior of composite sandwich specimens, tested at three-point bending/tensile, and the result obtained from finite element analysis of the same specimens; comparative study of the maximum forces appearing at the rupture of the specimens tested at bending in three points/tensile and the reaction forces, appearing in the structure of the supports, from the model with finite elements.…”

Section: Finite Element Analysis Of the Fiber-reinforced Composite Sa...mentioning

confidence: 99%

Fabrication and Characterization of Fiber-Reinforced Composite Sandwich Structures Obtained by Fused Filament Fabrication Process

et al. 2021

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The application of fused filament fabrication processes is rapidly expanding in many domains such as aerospace, automotive, medical, and energy, mainly due to the flexibility of manufacturing structures with complex geometries in a short time. To improve the mechanical properties of lightweight sandwich structures, the polymer matrix can be strengthened with different materials, such as carbon fibers and glass fibers. In this study, fiber-reinforced composite sandwich structures were fabricated by FFF process and their mechanical properties were characterized. In order to conduct the mechanical tests for three-point bending, tensile strength, and impact behavior, two types of skins were produced from chopped carbon-fiber-reinforced skin using a core reinforced with chopped glass fiber at three infill densities of 100%, 60%, and 20%. Using microscopic analysis, the behavior of the breaking surfaces and the most common defects on fiber-reinforced composite sandwich structures were analyzed. The results of the mechanical tests indicated a significant influence of the filling density in the case of the three-point bending and impact tests. In contrast, the filling density does not decisively influence the structural performance of tensile tests of the fiber-reinforced composite sandwich structures. Composite sandwich structures, manufactured by fused filament fabrication process, were analyzed in terms of strength-to-mass ratio. Finite element analysis of the composite sandwich structures was performed to analyze the bending and tensile behavior.

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“…Onyx is a composite material made of Nylon, thermoplastic matrix, and chopped carbon fibers. The presence of the carbon fibers gives homogeneity to the panel and guarantees higher stiffness to the substrate [16].…”

Section: Intr Introduction Oductionmentioning

confidence: 99%

Manufacturing Of Aluminum Coating On 3D-Printed Onyx With Cold Spray Technology

Gatta¹,

Astarita²,

Borrelli³

et al. 2021

Esaform 2021

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Composite materials are widely used as main parts and structural components in different fields, especially for automotive and military applications. Although these materials supply different advantages comparing to the metals, their implementation in engineering applications is limited due to low electrical and thermal properties and low resistance to erosion. To enhance these above-mentioned properties, the metallization of composite materials by creating a thin metal film on their surface can be achieved. Among different coating deposition techniques, Cold Spray appears to be the most suitable one for the metallization of temperature-sensitive materials such as polymers and composites with a thermoplastic matrix. This process relies on kinetic energy for the formation of the coating rather than on thermal energy and consequent erosion and degradation of the polymer-based composite can be avoided. In the last years, a new method to produce composite materials, as known as Fused Filament Fabrication (FFF), has been developed for industrial applications. This technique consists of a 3D printing process that involves the thermal extrusion of thermoplastic polymer and fibers in the form of filaments from a heated mobile nozzle. The implementation of this new technique is leading to the manufacturing of customized composite materials for the cold spray application. In the presented experimental campaign, Onyx material is used as a substrate. This material is made of Nylon, a thermoplastic matrix, and chopped carbon fibers randomly dispersed in it. Aluminum powders were cold sprayed on the Onyx substrate with a low-pressure cold spray (LPCS) system. This study aims to investigate the possibility of the metalizing 3D-printed composite material by cold spray technology. For this purpose, optical and microscopical analyses are carried out. Based on the results, the feasibility of the process and the influence of the morphology of the substrate are discussed, and optimal spraying conditions are proposed.

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Strength analysis of 3D printed carbon fibre reinforced thermoplastic using experimental and numerical methods

Cited by 30 publications

References 12 publications

A Review of Conductive Carbon Materials for 3D Printing: Materials, Technologies, Properties, and Applications

A Review of Conductive Carbon Materials for 3D Printing: Materials, Technologies, Properties, and Applications

Fabrication and Characterization of Fiber-Reinforced Composite Sandwich Structures Obtained by Fused Filament Fabrication Process

Manufacturing Of Aluminum Coating On 3D-Printed Onyx With Cold Spray Technology

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