Journal
COMPOSITE STRUCTURES
Volume 259, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2020.113226
Keywords
Additive manufacturing (AM); Continuous carbon fibre polymer composites (CCFPC); Fused deposition modelling (FDM)
Categories
Funding
- European Union's INTERREG VA Programme
Ask authors/readers for more resources
This study evaluated the in-plane mechanical properties of continuous carbon fiber reinforced thermoplastic polyamide composite manufactured using a 3D printing system and found that the modulus of elasticity and tensile strength were significantly improved. The influence of fiber orientation on mechanical properties was investigated, and the experimentally determined values can be used to predict the performance of 3D printed components.
In this study in-plane mechanical properties of continuous carbon fibre reinforced thermoplastic polyamide composite manufactured using a Markforged Two 3D printing system was evaluated and compared against predicted values from classical laminated-plate theory. Strength, stiffness and Poisson's ratio of the composite specimens were measured using tensile testing both in longitudinal and transverse direction and the shear properties were also measured. The influence of fibre orientation on mechanical properties was investigated and were compared with that of non-reinforced nylon samples and known material property values from literature. It was determined that the modulus of elasticity and tensile strength values were significantly improved to 603.43 MPa and 85 GPa respectively as compare to unreinforced nylon specimens. Furthermore, cross-sectional micrographs of specimens are analysed to observe the microstructure and fracture mechanism of the 3D printed composite. Experimentally determined values were used to predict the behaviour of the materials in different orientation using classical laminated-plate theory on the commercially available LAP (Laminated Analysis programme) software. The model developed will allow the designers to predict the elastic (mechanical) properties of 3D printed parts reinforced with fibre for components which require specific mechanical properties.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available