Affiliation:
1. State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, 28 Xian Ning West Road, Xi’an 710049, China
Abstract
Continuous fiber-reinforced composite truss structures have broad application prospects in aerospace engineering owing to their high structural bearing efficiency and multifunctional applications. This paper presents the design and fabrication of multilayer truss structures with controlled mechanical properties based on continuous fiber-reinforced thermoplastic composite 3D printing. Continuous fiber composite pyramid trusses fabricated by 3D printing have high specific stiffness and strength, with maximum equivalent compression modulus and strength of 401.91 MPa and 30.26 MPa, respectively. Moreover, the relative density of a truss structure can be as low as 1.45%. Additionally, structural units can be extended in any direction to form a multilayer truss structure. Structural performance can be controlled by designing the parameters of each layer. This study offers a novel approach for designing a multifunctional multilayer truss structure, a structure with low-density needs and unique load-bearing effects.
Funder
National Natural Science Foundation of China
K. C. Wong Education Foundation
The Youth Innovation Team of Shaanxi Universities
Fundamental Research Funds for the Central Universities
Subject
Polymers and Plastics,General Chemistry
Reference30 articles.
1. 3D Printing of Continuous Fiber Reinforced Polymer Composites: Development, Application, and Prospective;Tian;Chin. J. Mech. Eng. Addit. Manuf. Front.,2022
2. Recent Progress in Additive Manufacturing of Fiber Reinforced Polymer Composite;Goh;Adv. Mater. Technol.,2018
3. A critical review on the fused deposition modeling of thermoplastic polymer composites;Penumakala;Compos. Part B Eng.,2020
4. Dickson, A.N., Abourayana, H.M., and Dowling, D.P. (2020). 3D Printing of Fibre-Reinforced Thermoplastic Composites Using Fused Filament Fabrication—A Review. Polymers, 12.
5. Roadmap for Additive Manufacturing: Toward Intellectualization and Industrialization;Tian;Chin. J. Mech. Eng. Addit. Manuf. Front.,2022