Abstract
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.
| Original language | English |
|---|---|
| Article number | 113226 |
| Pages (from-to) | 1-8 |
| Number of pages | 8 |
| Journal | Composite Structures |
| Volume | 259 |
| Early online date | 6 Nov 2020 |
| DOIs | |
| Publication status | Published (in print/issue) - 1 Mar 2021 |
Bibliographical note
Funding Information:The North West Centre for Advanced Manufacturing (NW CAM) project is supported by the European Union’s INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB). The views and opinions in this document do not necessarily reflect those of the European Commission or the Special EU Programmes Body (SEUPB).
Publisher Copyright:
© 2020
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
Funding Information:
The North West Centre for Advanced Manufacturing (NW CAM) project is supported by the European Union's INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB). The views and opinions in this document do not necessarily reflect those of the European Commission or the Special EU Programmes Body (SEUPB). If you would like further information about NW CAM please contact the lead partner, Catalyst, for details.?
Funding Information:
The North West Centre for Advanced Manufacturing (NW CAM) project is supported by the European Union’s INTERREG VA Programme, managed by the Special EU Programmes Body (SEUPB). The views and opinions in this document do not necessarily reflect those of the European Commission or the Special EU Programmes Body (SEUPB).
Publisher Copyright:
© 2020
Keywords
- Additive manufacturing (AM)
- Continuous carbon fibre polymer composites (CCFPC)
- Fused deposition modelling (FDM)