Delamination analysis of 3D-printed nylon reinforced with continuous carbon fibers

2021 ◽  
pp. 102144
Author(s):  
E. Polyzos ◽  
A. Katalagarianakis ◽  
D. Van Hemelrijck ◽  
L. Pyl
Keyword(s):  
Carbon Fibers ◽  
3D Printed

scholarly journals Experimental and numerical analysis of 3D printed open-hole plates reinforced with carbon fibers

2020 ◽  
Vol 2 ◽  
pp. 100007
Author(s):  
E. Zappino ◽  
M. Filippi ◽  
A. Pagani ◽  
M. Petiti ◽  
E. Carrera
Keyword(s):  
Numerical Analysis ◽  
Carbon Fibers ◽  
Open Hole ◽  
3D Printed

3D Printed Composites With Continuous Carbon Fiber Reinforcements

2017 ◽  
Author(s):  
Ali N. Sarvestani ◽  
Nekoda van de Werken ◽  
Pouria Khanbolouki ◽  
Mehran Tehrani
Keyword(s):  
Carbon Fiber ◽  
Carbon Fibers ◽  
High Performance ◽  
Mechanical Response ◽  
Failure Mechanisms ◽  
Micro Structure ◽  
Design Rules ◽  
Continuous Carbon Fiber ◽  
Fiber Reinforcements ◽  
3D Printed

Additively manufactured polymers can be reinforced with high-performance reinforcements such as carbon fibers. Printed thermoplastics with embedded continuous carbon fibers are up to two orders of magnitude stronger and stiffer than high-grade 3D printed polymers. In this work, the mechanical response of such 3D printed carbon fiber specimens is evaluated. While the precursor carbon fiber reinforced filaments achieve a stiffness of 50GPa and strength 700MPa, mechanical properties of their printed parts are highly affected by printed carbon fiber curvatures. In this work, the structure of 3D printed parts was examined, and some design rules for 3D printing with continuous carbon fibers are suggested. Moreover, failure mechanisms in these samples are discussed and correlated to the micro-structure of the composites and the carbon fiber configuration.

scholarly journals 3D Printed Hollow Off-Axis Profiles Based on Carbon Fiber-Reinforced Polymers: Mechanical Testing and Finite Element Method Analysis

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2949
Author(s):  
Martina Kalova ◽  
Sona Rusnakova ◽  
David Krzikalla ◽  
Jakub Mesicek ◽  
Radek Tomasek ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Carbon Fibers ◽  
Fem Analysis ◽  
Critical Force ◽  
Fiber Reinforced Polymers ◽  
Fused Deposition ◽  
3D Printed ◽  
Buckling Test ◽  
Element Method

The aim of the paper is to design, manufacture, and test an off-axis composite profile of circular cross-section. Composite profile based on continuous carbon fibers reinforcing the onyx matrix, i.e., a matrix that consists of nylon and micro carbon fibers, was produced by fused deposition modeling (FDM) method. A buckling test of the six printed composite specimens was performed on a tensile test machine. The values of the experiment were compared with the values of the computational simulation using the Finite Element Method (FEM) analysis. The mean value of the experimentally determined critical force at which the composite profile failed was 3102 N, while the value of the critical force by FEM analysis was calculated to be 2879 N. Thus, reliability of the simulation to determine the critical force differed from the experimental procedure by only 7%. FEM analysis revealed that the primary failure of 3D printed composite parts was not due to loss of stability, but due to material failure. With great accuracy, the results of the comparison show that it is possible to predict the mechanical properties of 3D printed composite laminates on the basis of a theoretical model.

3D printed PLA and PLA reinforced with short carbon fibers: an experimental characterization

2017 ◽  
Author(s):  
Rafael Thiago Luiz Ferreira ◽  
Igor Amatte ◽  
Thiago Dutra ◽  
Daniel Bürger
Keyword(s):  
Carbon Fibers ◽  
Experimental Characterization ◽  
3D Printed ◽  
Short Carbon

3D Printed Recoverable Honeycomb Composites Reinforced by Continuous Carbon Fibers

2021 ◽  
pp. 113974
Author(s):  
Yunyong Cheng ◽  
Junjie Li ◽  
Xiaoping Qian ◽  
Stephan Rudykh
Keyword(s):  
Carbon Fibers ◽  
3D Printed

scholarly journals UV-Assisted 3D Printing of Polymer Composites from Thermally and Mechanically Recycled Carbon Fibers

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 726 ◽  
Author(s):  
Andrea Mantelli ◽  
Alessia Romani ◽  
Raffaella Suriano ◽  
Marco Diani ◽  
Marcello Colledani ◽  
...  
Keyword(s):  
Carbon Fiber ◽  
3D Printing ◽  
Carbon Fibers ◽  
Fiber Reinforced Polymers ◽  
Cost Ratio ◽  
Fiber Reinforced ◽  
Carbon Fiber Reinforced Polymers ◽  
Reinforced Polymers ◽  
3D Printed ◽  
Carbon Fiber Reinforced

Despite the growing global interest in 3D printed carbon fiber reinforced polymers, most of the applications are still limited to high-performance sectors due to the low effectiveness–cost ratio of virgin carbon fibers. However, the use of recycled carbon fibers in 3D printing is almost unexplored, especially for thermoset-based composites. This paper aims to demonstrate the feasibility of recycled carbon fibers 3D printing via UV-assisted direct ink writing. Pyrolyzed recycled carbon fibers with a sizing treatment were firstly shredded to be used as a reinforcement of a thermally and photo-curable acrylic resin. UV-differential scanning calorimetry analyses were then performed to define the material crosslinking of the 3D printable ink. Because of the poor UV reactivity of the resin loaded with carbon fibers, a rheology modifier was added to guarantee shape retention after 3D printing. Thanks to a customized 3D printer based on a commercial apparatus, a batch of specimens was successfully 3D printed. According to the tensile tests and Scanning Electron Microscopy analysis, the material shows good mechanical properties and the absence of layer marks related to the 3D printing. These results will, therefore, pave the way for the use of 3D printed recycled carbon fiber reinforced polymers in new fields of application.

Experimental characterization and micrography of 3D printed PLA and PLA reinforced with short carbon fibers

2017 ◽  
Vol 124 ◽  
pp. 88-100 ◽  
Author(s):  
Rafael Thiago Luiz Ferreira ◽  
Igor Cardoso Amatte ◽  
Thiago Assis Dutra ◽  
Daniel Bürger
Keyword(s):  
Carbon Fibers ◽  
Experimental Characterization ◽  
3D Printed ◽  
Short Carbon

scholarly journals 3D Printed Hierarchical Honeycombs with Carbon Fiber and Carbon Nanotube Reinforced Acrylonitrile Butadiene Styrene

2021 ◽  
Vol 5 (2) ◽  
pp. 62
Author(s):  
Michel Theodor Mansour ◽  
Konstantinos Tsongas ◽  
Dimitrios Tzetzis
Keyword(s):  
Carbon Fibers ◽  
Mechanical Performance ◽  
Acrylonitrile Butadiene Styrene ◽  
Experimental Tests ◽  
Fused Filament Fabrication ◽  
Element Analysis ◽  
Compression Performance ◽  
Honeycomb Structures ◽  
3D Printed ◽  
Butadiene Styrene

The mechanical properties of Fused Filament Fabrication (FFF) 3D printed specimens of acrylonitrile butadiene styrene (ABS), ABS reinforced with carbon fibers (ABS/CFs) and ABS reinforced with carbon nanotubes (ABS/CNTs) are investigated in this paper using various experimental tests. In particular, the mechanical performance of the fabricated specimens was determined by conducting compression and cyclic compression testing, as well as nanoindentation tests. In addition, the design and the manufacturing of hierarchical honeycomb structures are presented using the materials under study. The 3D printed honeycomb structures were examined by uniaxial compressive tests to review the mechanical behavior of such cellular structures. The compressive performance of the hierarchical honeycomb structures was also evaluated with finite element analysis (FEA) in order to extract the stress-strain response of these structures. The results revealed that the 2nd order hierarchy displayed increased stiffness and strength as compared with the 0th and the 1st hierarchies. Furthermore, the addition of carbon fibers in the ABS matrix improved the stiffness, the strength and the hardness of the FFF printed specimens as well as the compression performance of the honeycomb structures.

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