Numerical Analysis of Continuous Fibre Composite Forming

Author(s):  
P. Boisse ◽  
D. Soulat ◽  
J.L. Daniel
1982 ◽  
Vol 1 (6) ◽  
pp. 249-252 ◽  
Author(s):  
J. Daniel Whittenberger ◽  
Frances I. Hurwitz ◽  
John J. Ricca ◽  
Rebecca M. Jurta

2021 ◽  
Author(s):  
MATHEW JOOSTEN ◽  
ZI LI ◽  
CHENG HUANG

At Deakin University we have been researching the performance of continuous fibre 3D printed composite structures and a summary of three research activities related to this research theme are provided herein. 3D printed continuous fibre composites can be used to realise significant gains in stiffness and strength compared to an equivalent component fabricated using a neat thermoplastic. To investigate the performance of these materials both commercially available and customised printers were used to fabricate composite laminates and the behaviour of these laminates evaluated experimentally. Finite element and analytical models were used to predict the mechanical response. These approaches were originally developed for thermoset matrices, however, the models have shown to be capable of predicting the behaviour of 3D printed carbon fibre and hybrid carbon-fibreglass thermoplastic composites. These validated models can be used to generate design charts to identify feasible UD and semi-woven textile architectures, thereby, allowing designers to tailor the ply architecture and stacking sequence to meet specific design requirements.


Materials ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 4671
Author(s):  
Lourens Blok ◽  
Marco Longana ◽  
Benjamin Woods

In this work, aligned discontinuous fibre composite (ADFRC) tapes were developed and investigated as precursors for a novel 3D printing filament. ADFRCs have the potential to achieve mechanical performance comparable to continuous fibre reinforced composites, given sufficient fibre length and high level of alignment, and avoid many of the manufacturing difficulties associated with continuous fibres, e.g., wrinkling, bridging and corner radii constraints. Their potential use for fused filament fabrication (FFF) techniques was investigated here. An extensive down-selection process of thermoplastic matrices was performed, as matrix properties significantly impact both the processing and performance of the filament. This resulted in four candidate polymers (ABS, PLA, Nylon, PETG) which were used to manufacture ADFRC tapes with a Vf of 12.5% using the high performance discontinuous fibre (HiPerDiF) technology and an in-house developed continuous consolidation module. Tensile stiffness and strength up to 30 GPa and 400 MPa respectively were recorded, showing that a discontinuous fibre filament has the potential to compete with continuous fibre filaments.


2014 ◽  
Vol 891-892 ◽  
pp. 42-47 ◽  
Author(s):  
Camille Flament ◽  
Michelle Salvia ◽  
Bruno Berthel ◽  
Gerard Crosland

In dry clutch systems, the clutch facing is an annular shaped continuous fibre composite with organic matrix (thermo set resins) which transmits the torque from the engine to the wheels. In use it is submitted to thermo-mechanical cycling. Due to the composite fibre organisation, the strain field under thermo-mechanical loading is not homogenous. Full field data is needed to describe the material behaviour. Digital Image Stereo-Correlation (DISC) was used to determine the coefficient of thermal expansion (CTE) of the material. To determine the effect of temperature and cyclic loading on the mechanical properties, the composite was subjected to different thermal cycles. The material properties are modified with increasing temperature and number of cycles. These results were confirmed by dynamic mechanical analysis which showed thermal ageing of the resin. The local information given by the strain fields revealed a non uniform evolution of the material properties with thermal cycling.


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