Transverse Failure Behavior of Continuous Fiber Reinforced Composites

Background: Additive Manufacturing (AM) enables the accurate fabrication of designed parts in a short time without the need for specific molds and tools. Although polymers are the most widely used raw materials for AM, the products printed by them are inherently weak, unable to sustain large tension or bending stresses. A need for the manufacturing of fiber reinforced composites, especially continuous fiber as reinforcement, has attracted great attention in recent years. Objective: Identifying the progress of the AM of continuous carbon fiber reinforced composites over time and therefore establishing a foundation on which current research can be based. Methods: Elaborating the most related patents regarding the AM techniques for fabricating continuous fiber reinforced composites in the top three institutions, including Markforged company, Xi’an Jiaotong University and President and Fellows of Harvard College. Results: The recent patents in AM of continuous fiber reinforced composites are classified into two aspects: patents related to novel technique methods and patents related to novel structures. The current issues and future development of AM-based composites are given. Conclusion: New structures and techniques have been introduced into conventional 3D printers to enable the printing of continuous fiber reinforced composites. However, until now, Markforged is the only company commercializing the fabrication of this kind of composites based on AM technique. Numerous challenges and issues need to be solved so that AM of continuous fiber reinforced composites can be a new manufacturing method.

Download Full-text

Controllable inter-line bonding performance and fracture patterns of continuous fiber reinforced composites by sinusoidal-path 3D printing

Composites Science and Technology ◽

10.1016/j.compscitech.2020.108096 ◽

2020 ◽

Vol 192 ◽

pp. 108096 ◽

Cited By ~ 3

Author(s):

Junfan Shang ◽

Xiaoyong Tian ◽

Meng Luo ◽

Weijun Zhu ◽

Dichen Li ◽

...

Keyword(s):

3D Printing ◽

Fiber Reinforced Composites ◽

Reinforced Composites ◽

Fiber Reinforced ◽

Continuous Fiber ◽

Bonding Performance ◽

Fracture Patterns

Download Full-text

Future requirements in the characterization of continuous fiber-reinforced polymeric composites (IUPAC Technical Report)

Pure and Applied Chemistry ◽

10.1351/pac200274040601 ◽

2002 ◽

Vol 74 (4) ◽

pp. 601-628 ◽

Cited By ~ 6

Author(s):

D. R. Moore ◽

A. J. Cervenka

Keyword(s):

Mechanical Properties ◽

Fiber Reinforced Composites ◽

Reinforced Composites ◽

Fiber Reinforced ◽

Continuous Fiber ◽

Interfacial Effects ◽

Technical Report ◽

Processing Properties ◽

Historic Background

Characterization of continuous fiber-reinforced composites is examined in terms of processing, properties, and structure. Five processing and five property topics are then examined in terms of reviewing some of the historic background in these areas with the aim of identifying current issues and requirements for the future. The topics covered in the processing section are: polymeric matrix, impregnation, interfacial effects, residual stresses, and pre-preg tack. In the mechanical properties section the topics are: choice of standard, recycling and reusability, durability, environmental strength, and toughness. The paper provides a ten-point plan for future requirements.

Download Full-text