3D printing Kevlar fiber layer distributions and fiber orientations into nylon composites to achieve designable mechanical strength

Shi, Kaiwen; Yan, Yuekai; Hui, Mei; Chen, Chao; Cheng, Laifei

doi:10.1016/j.addma.2021.101882

Cited by 11 publications

(7 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This can be explained because 90° alignment provides the highest reinforcement, as the fibers are oriented in the direction of the applied load [ 32 , 33 ]. According to Shi et al, such orientation effects might be attributable to the fact that various angles of fibers provide a variable level of resistance to rotation [ 24 ].…”

Section: Resultsmentioning

confidence: 99%

“…The Mark Two 3D printer was used to develop continuous fiber-reinforced composites (MarkForged, Somerville, MA, USA) [ 24 ]. This printer has two distinct nozzles: one extruding nylon and the other providing Kevlar fiber ( Figure 1 ).…”

Section: Experimental and Analytical Studiesmentioning

confidence: 99%

“…The stacking sequences of the tested specimens involved angles of 45°, −45°, 90°, and 0°. It should be mentioned that fiber layers with homogeneous distributions and optimal orientation enhance composites by equally spreading tensile stress throughout the composite [ 24 ]. The geometry of the 3D-printed, fiber-reinforced structure is shown in Figure 2 .…”

Section: Experimental and Analytical Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Failure Prediction in 3D Printed Kevlar/Glass Fiber-Reinforced Nylon Structures with a Hole and Different Fiber Orientations

Albadrani

2022

Polymers

View full text Add to dashboard Cite

This study examined the mechanical performance of 3D-printed, fiber-reinforced composites with a rectangular shape and a hole at one end. Nyon-6 was selected as a polymer matrix, and glass or Kevlar fibers were selected as continuous fibers due to their wide range of applications. Nylon is an engineering thermoplastic; reinforcing it with fibers, such as glass fiber or Kevlar, can significantly improve its mechanical properties. An analytical model was constructed based on the volume average stiffness approach to predict the mechanical properties of 3D-printed specimens. A numerical model was built to predict failure modes and damage in 3D-printed specimens with different fiber orientations. The stress–strain relationship was linear in all composites. For Kevlar-based composites, the maximum stress was 1.7 MPa, 3.62 MPa, 2.2 MPa, 1.0 MPa, and 1.4 MPa for the orientation angles of 0°, 22.5°, 45°, 67.5°, and 90°, respectively. Overall, Kevlar-based composites exhibited mechanical properties superior to those of glass-based composites. The effect of the fiber orientation was also different between the two systems. The simulation results predicted that the failure propagation begins in the areas close to the hole. Notably, the level of agreement between the simulated and experimental results varied depending on the fiber type and orientation, reflecting the complex interplay between multiple fibers, matrix interactions, and stress transfer.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Experimental and Analytical Studiesmentioning

confidence: 99%

Section: Experimental and Analytical Studiesmentioning

confidence: 99%

See 1 more Smart Citation

Failure Prediction in 3D Printed Kevlar/Glass Fiber-Reinforced Nylon Structures with a Hole and Different Fiber Orientations

Albadrani

2022

Polymers

View full text Add to dashboard Cite

show abstract

“…When compared to the 45 degree sample, the 0 degree sample has significantly better strength and modulus. Nylon/Kevlar composites with angles of 30, 45, and 60 degrees were created by Shi et al [97]. The lower the angle, the greater the yield stress, i.e., the highest yield stress is for 30, 45, and 60 degrees, respectively.…”

Section: Fiber Orientationmentioning

confidence: 99%

3D printing of Continuous Fiber Reinforced Composites: A Review of the Processing, Pre- and Post-Processing Effects on Mechanical Properties

Safari¹,

Kami²,

Abedini³

2021

Preprint

View full text Add to dashboard Cite

The main objective of this study is to review existing research on the application of fused deposition modeling (FDM) for 3D printing of continuous fiber reinforced composites (CFRCs). An overview of additive manufacturing (AM) technology production techniques is provided first, followed by a look into FDM technology. The articles on CFRC printing were then summarized. The type of reinforcing material and matrix utilized, the research subject, the mechanical properties investigated, and the sample dimensions are all listed. Various pre-processing, processing, and post-processing conditions, as well as their impact on CFRC mechanical properties, were also discussed.

show abstract

“…So far, researchers have conducted experimental research, theoretical analysis, and simulation on the influence of shape memory properties of composite. Shi et al 15 prepared Kevlar fibers with different fiber orientations through 3D printing technology. In addition, the tensile test was conducted and the mathematical models were estiblished.…”

Section: Introductionmentioning

confidence: 99%

Effect of layering angles on shape memory properties of graphene oxide/carbon fiber hybrid reinforced composites prepared by vacuum infiltration hot pressing system

Wang

et al. 2022

High Performance Polymers

View full text Add to dashboard Cite

Seven groups of different layering angles of Graphene oxide/Carbon fiber (GO-CF) hybrid reinforced shape memory composites are prepared by vacuum infiltration hot pressing system. The layering angles are respectively [0°]4, [±15°]s, [±30°]s, [±45°]s, [±60°]s, [±75°]s, and [90°]4. The shape fixation ratio, shape recovery ratio, and shape recovery driving force of GO-CF hybrid reinforced shape memory composites are investigated. The composite with the layering angle of [0°]4 has the minimum shape fixation ratio of 90.9%, the maximum shape recovery ratio of 97.6%, and the maximum recovery force of 2.83 N. Compared to [0°]4, the composite with the layering angle of [90°]4 has the 9.13% higher shape fixation ratio, but it has 16.1% lower shape recovery ratio and 59.4% lower recovery force. The microstructure of the composites is characterized and the microstructure of seven groups of composites is satisfactory. Therefore, the matrix within each group of composites has a similar effect on the shape memory properties of the composites. With the layering angle increased, the fiber resilience in the axial direction (X-direction) and the accumulated internal stress gradually decrease. With the layering angle increased, the shape fixation ratio and recovery time of GO-CF hybrid reinforced shape memory composites increase, while the shape recovery ratio, recovery force, and recovery rate decrease.

show abstract

3D printing Kevlar fiber layer distributions and fiber orientations into nylon composites to achieve designable mechanical strength

Cited by 11 publications

References 31 publications

Failure Prediction in 3D Printed Kevlar/Glass Fiber-Reinforced Nylon Structures with a Hole and Different Fiber Orientations

Failure Prediction in 3D Printed Kevlar/Glass Fiber-Reinforced Nylon Structures with a Hole and Different Fiber Orientations

3D printing of Continuous Fiber Reinforced Composites: A Review of the Processing, Pre- and Post-Processing Effects on Mechanical Properties

Effect of layering angles on shape memory properties of graphene oxide/carbon fiber hybrid reinforced composites prepared by vacuum infiltration hot pressing system

Contact Info

Product

Resources

About