The art and science
employing carbon tows for
new applications
Dr. Floreana Coman
Managing Director, FCST Pty Ltd
2 March, 2017
Overview
➢ 1.About FCST
➢ 2.Novel Preforms
➢ 3.Science behind 3D preforms
➢ 4.Innovations and new applications
➢ 5.Conclusions
1. About FCST
➢ Provider of technical textiles and composite materials
solutions, services and products to a global customer base
➢ Strong Research heritage in textiles and composites
➢ Unique manufacturing capabilities:
➢ 3-D & 2-D weaving looms
➢ Versatile – weave styles, fabric structures, fibre type
and run length
➢ Supported by Composites Laboratory
➢ Strategic Alliances with Universities and Industry
3D weaving loom
5
12 k Carbon on the loom
•
spacer fabric model was represented as Unitt Cell in order to reduce
computational resources.
•
With increase in number of yarns the power output increases exponentially.
2. Novel Preforms
➢ 3-D preforms style:
➢ “Non Crimp” multilayer
➢ up to 20 layers
➢ in a variety of architectures:
➢ orthogonal, interlayered, offset, with or without stuffers etc
➢
➢
➢
➢
➢
Profiled Fabrics T, C, U, Y ,L…
Angular Branched tubes
Cellular multilayer
Radial Multilayer
Special reinforcements for specific industries
Novel Preforms …..
➢ 3-D preforms style:
➢ “Non Crimp” multilayer
➢ up to 20 layers
➢ in a variety of architectures:
➢ orthogonal, interlayered, offset, etc.
Novel Preforms
…..
Warp Filler Yarn
Layers 1 & 2
Weft Yarns Layers 1, 2 & 3
Warp Binder
Yarns
Novel Preforms …..
➢ Profiled Fabrics T, I, C, U, Y ,L…
Novel Preforms …..
➢
Tubular branched
Novel Preforms …..
➢ Cellular multilayer
Novel Preforms …..
➢ Radial Multilayer
Novel Preforms …..
➢ Special Reinforcements
3.Art & Science behind preforms
Why there is an art as well?
➢ Any science is a form of art especially when have a
target
Simple science behind 3Dpreforms:
➢ improved tow placement and presence of Z direction
fibre improve composite performance :
- Better load distribution /minimise stress
concentrations
- Improved mechanical properties specially Inter
Laminar Shear Strength (ILLS) and Flexural strength
- No delamination
15
Comparison between Plain weave Composites and 3D
•
spacer fabric model was represented as Unitt Cell in order to reduce
computational resources.
•
With increase in number of yarns the power output increases exponentially.
16
Difference in Failing mode between 2D and 3D
•
spacer fabric model was represented as Unitt Cell in order to reduce
Plain
Twill
3D
17
SIMULATION
Optimization of 3D fabric design for specific applications (Example: Energy harvesting)
Displacement amplitude of spacer fabric at 2Hz
18
Effect of Increasing pile yarn angle
•
spacer fabric model was represented as Unitt Cell in order to reduce
computational resources.
•
With increase in number of yarns the power output increases exponentially.
19
Effect of Increasing tow size
•
spacer fabric model was represented as Unitt Cell in order to reduce
computational resources.
•
With increase in number of yarns the power output increases exponentially.
4. Innovation with FCST Preforms
➢ Allow innovation in composites
➢ Complex shapes/ease of manufacture/improved
properties
➢ Integrated “cells” or “tubes”
➢ Increase degree of freedom for Design
➢ Adaptable to specific needs in terms Fibre type,
hybridisation, weave architecture, layering sequence
➢ 3D & specialised fabrics suitable for any
application and new but Is a must for:
aerospace, defence, transportation, automotive
civil, wind energy,
4. Applications with FCST Preforms
Applications
2
5. CONCLUSIONS
➢ The computer operated 3-D loom is capable of producing
complex fabrics
➢ What FCST brings into the market:
-New fibre orientation:
“z” direction fibres
curvilinear
combinations
- Multiple layers and Profilled fabrics
- Novel Hybridization
➢ Consequence: - superior composite properties
- new applications
CONTACT
➢ E-mail: [email protected]
➢ Web: www.fcst.com.au
➢ Mobile: 0400 233 747