Preparation and Evaluation of the Tensile Characteristics of Carbon Fiber Rod Reinforced 3D Printed Thermoplastic Composites

Abstract

The most common method to fabricate both simple and complex structures in the additive manufacturing process is fused deposition modeling (FDM). Many researchers have studied the strengthening of FDM components by adding short carbon fibers (CF) or by reinforcing solid carbon fiber rods. In the current research, we sought to enhance the mechanical properties of FDM components by adding bioinspired solid CF rods during the fabrication process. An effective bonding interface of bioinspired CF rods and polylactic acid (PLA) was achieved by triangular interlocking sutures and by employing synthetic glue as the binding agent. In particular, the tensile strength of solid CF rod reinforced PLA samples was studied. Critical parameters such as layer thickness, extruder temperature, extruder speed, and shell thickness were considered for optimization. Significant process parameters were identified through leverage plots using the response surface methodology (RSM). The optimum parameters were found to be layer thickness of 0.04 mm, extruder temperature of 215 °C, extruder speed of 60 mm/s, and shell thickness of 1.2 mm. The results revealed that the bioinspired solid CF rod reinforced PLA (CFRPLA) composite exhibited a tensile strength of 82.06 MPa, which was approximately three times higher than the pure PLA (28 MPa, 66% lower than CFRPLA), acrylonitrile butadiene styrene (ABS) (28 MPa, 66% lower than CFRPLA), polyethylene terephthalate glycol (PETG) (34 MPa, 60% lower than CFRPLA), and nylon (34 MPa, 60% lower than CFRPLA) samples.

From Waste to Filament: Development of Biomass-Derived Activated Carbon-Reinforced PETG Composites for Sustainable 3D Printing

“…The high-quality printouts showed no shrinkage, discontinuities, or defects, proving that AC-PETG30 is a reliable material for 3D printing customized complex geometries. ,, Accordingly, a porous cylindrical filter mesh was printed with AC-PETG30 (Figure A). The porous nature of AC-PETG30 provides the potential to adsorb organic and inorganic pollutants with high capacity, making it an effective solution for air and water purification and sterilization. , Additionally, L1 and L2 vertebrae obtained from CT scans (Figure B) demonstrated the potential of using AC-PETG30 as implants for spinal implant surgery in medical applications due to its enhanced mechanical strength and higher biocompatibility compared to pure PETG. − …”

Multi-objective optimization and prediction of surface roughness and printing time in FFF printed ABS polymer

“…High infill density gives high tensile strength and good surface characteristics for PETG material 17 . Apart from changes in internal process parameters, some external changes were also considered to obtain the expected mechanical performance of printed material by adding carbon fibers (short/lengthy) along with polymers 18 . These compositions may not consistently spread throughout the polymer structure which yields non-uniform mechanical performance of printed parts.…”

Multi-objective optimization of alloying elements to enhance the wear resistance and impact strength of HCCI produced by furan sand mold

“…The predicted results were compared with experimental results to validate the performance of GA. 43 There are other common optimization techniques followed to predict the influencing parameters on surface roughness using traditional Taguchi optimization 44 and tensile strength by RSM method. 45,46 To solve multi-objective problem, methods such as (AHP) and (WASPAS) are used to predict the optimum milling parameters to minimize surface roughness, dimensional deviation and maximize the material removal rate. 47 The WASPAS method is developed by combining Weighted Sum Method (WSM) and Weighted Product Model (WPM) in order to solve a multi-objective problem based on alternatives rank.…”