JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 53

C-PLY™, a new structural approach to multiaxials in composites
Among the first manufacturers to commit themselves to Professor Tsai’s project, Chomarat accepted the challenge to convert a massproduction tool into a unique manufacturing process able to produce a new range of multiaxial materials. This range of products opens new prospects in the construction of composites by providing increased performance and weight reduction previously impossible to obtain.
Fig. 1: Before spreading fibres (a) Ply after spreading process (b)

By

bi-angle NCF

THOMAS ROURE, R&D PROJECT MANAGER, PHILIPPE SANIAL GROUP R&D DIRECTOR CHOMARAT

M

ultiaxial technology appeared during the 1980s, making use of a ply-forming and stitching technology that is now perfectly mastered. Since then, large volumes of multiaxial glass and carbon reinforcements have been produced, mainly in the 0, 90 and ±45 deg. directions, with areal weights equal to or higher than 200 g per carbon ply. That technological hurdle was cleared in the early 2000s, thanks to the acquisition of skills in fibre spreading. However, the range of product configurations remained rather standard. In response to Professor Tsai’s theory, Chomarat extended C-PLY™, its range of carbon multiaxials, by developing new reinforcements with low areal weights (under 150 gm² per ply) and angles (under 30 deg.).

that consists of laying the yarns flat and straight at uniform tension before spreading them to form a ply that is uniform in weight, width and thickness.

very fine stitch to reduce the impact of foreign materials and the creation of voids as much as possible.

New advantages
The extended C-PLY™ range offers new advantages: - improved ply homogeneity, - very thin, lightweight products, - potential to use heavy tow yarns (48K, 50K), - improved surface appearance.

- ply forming: done on a multiaxial machine, but instead of laying down the yarns as in the standard technique, UD plies are placed on top of one another in the desired directions. Obtaining reduced angles (20-30 degrees) required designing new machine kinematics.

The fabrication process
The three-step fabrication process includes: - spreading: achieving a ply weight at 75 g/m² according to Pr. Tsai’s criteria requires skill in a specific spreading process

Fig. 2: Details of ply laying (example at 45°)

- combining: this last step of the process serves to tie the plies together and consolidate the laminate. It is based on a

No68 October 2011 / jec composites magazine C-PLY™ is suitable for all lamination techniques, including HLU, LRI, RFI, RTM, VARTM, and prepreg, and can be used with all types of fibres including carbon, E-glass, S2-glass, and aramid. Using C-PLY™ with an asymmetrical construction (0 /ϕ) where ϕ ranges from 20 to 30 degrees allows laminate values that are impossible to achieve with

Fig. 3: C-PLY TM

53

Feature bi-angle NCF



JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011

Cover
Edito
Point of view: Manufacturing in India
Contents
Agenda of Events
COMPANY & BUSINESS
- In Brief
- Carbon - Melbourne establishes its position in the carbon fibre sector
- Pipes - Amiantit Technology, next-level GRP pipe technology
- Marine - Beachcomber, the marine product specialist
APPLICATIONS
- Construction - New architectural hotel facade designed in GRP
- Automotive - New Pilot Super Sport tyre reinforced with para-aramid fibre
- Pipes - Microtunneling jacking pipes for a combined sewage collector in France
MARKET
- Canada - Canadian Advanced Composites R&D centre continues to grow
- Basalt - Continuous basalt fibre (CBF): a natural fibre for composite applications
- Sustainability - Bilan carbon inventory: factor of competitiveness
Special JEC Asia 2011: the place to be!
FEATURE BI-ANGLE NCF
- The amazing bi-angle thin-ply NCF
- C-PLY™, a new structural approach to multiaxials in composites
- Characterization of the equivalent unidirectional thin ply from NCF
- First prepreg of bi-angle NCF and their mechanical properties
- Pultrusion and Resin Film Infusion (RFI) of bi-angle thin-ply NCF
- Representative test data on bi-angle thin-ply NCF
- Processing bi-angle non-crimp fabrics
- Thin-ply NCF: design for deformation through anisotropy
- Performance enhancement by using a bi-angle composite sandwich beam
- Homogenization made easy with biangle thin-ply NCF
- First and last ply failure predictions by homogenized strength parameters
- Equivalent properties for finite element analysis in composite design
- Predicting the OHT strength of NCF composites
- Thin-ply NCF: design for deformation through anisotropy
RESEARCH & DEVELOPMENT
- Thin-ply NCF: design for deformation through anisotropy
- Filament winding - Development of full composite propulsion systems for UAV take-off
TECHNOLOGY & INNOVATIONS
- Aeronautics - Managing EMI grounding & lightning strike protection
- Sustainability - Natural-fibre pultruded composites – a revolutionary new wood substitute
- LFT-PP - New coloured, nonhalogenated flame-retardant LFT-PP products
Index
In the world
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Cover
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 2
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Edito
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Point of view: Manufacturing in India
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 5
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Contents
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 7
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Ad1
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Ad2
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 9
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - In Brief
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Carbon - Melbourne establishes its position in the carbon fibre sector
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Pipes - Amiantit Technology, next-level GRP pipe technology
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 13
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Marine - Beachcomber, the marine product specialist
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 15
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Construction - New architectural hotel facade designed in GRP
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 17
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Automotive - New Pilot Super Sport tyre reinforced with para-aramid fibre
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Pipes - Microtunneling jacking pipes for a combined sewage collector in France
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 20
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Canada - Canadian Advanced Composites R&D centre continues to grow
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Basalt - Continuous basalt fibre (CBF): a natural fibre for composite applications
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 23
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 24
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 25
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Sustainability - Bilan carbon inventory: factor of competitiveness
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 27
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 28
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 29
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 30
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 31
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 32
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Special JEC Asia 2011: the place to be!
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 34
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 35
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 36
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 37
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 38
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JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 50
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BGCover
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BGAd1
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG1
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG2
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG3
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG4
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG5
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG6
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG7
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG8
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JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG35
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JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - BG74
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - The amazing bi-angle thin-ply NCF
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 52
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - C-PLY™, a new structural approach to multiaxials in composites
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 54
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Characterization of the equivalent unidirectional thin ply from NCF
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 56
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - First prepreg of bi-angle NCF and their mechanical properties
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 58
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Pultrusion and Resin Film Infusion (RFI) of bi-angle thin-ply NCF
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 60
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Representative test data on bi-angle thin-ply NCF
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 62
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 63
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Processing bi-angle non-crimp fabrics
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 65
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Thin-ply NCF: design for deformation through anisotropy
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 67
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Performance enhancement by using a bi-angle composite sandwich beam
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 69
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Homogenization made easy with biangle thin-ply NCF
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 71
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - First and last ply failure predictions by homogenized strength parameters
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 73
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Equivalent properties for finite element analysis in composite design
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 75
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Predicting the OHT strength of NCF composites
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 77
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Thin-ply NCF: design for deformation through anisotropy
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 79
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 80
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Thin-ply NCF: design for deformation through anisotropy
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 82
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 83
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Filament winding - Development of full composite propulsion systems for UAV take-off
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 85
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 86
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 87
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 88
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Aeronautics - Managing EMI grounding & lightning strike protection
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 90
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 91
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - Sustainability - Natural-fibre pultruded composites – a revolutionary new wood substitute
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - - LFT-PP - New coloured, nonhalogenated flame-retardant LFT-PP products
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 94
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 95
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - Index
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 97
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - In the world
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 99
JEC COMPOSITES MAGAZINE - Issue #68 Special JEC Asia - October 2011 - 100
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https://www.nxtbook.fr/newpress/jeccomposites/jcm2009_136
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https://www.nxtbook.fr/newpress/jeccomposites/jcm2005_Special_Issue3
https://www.nxtbook.fr/newpress/jeccomposites/jcm2005_134
https://www.nxtbook.fr/newpress/jeccomposites/jcm2003_133
https://www.nxtbook.fr/newpress/jeccomposites/jcm2001_132
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_Special_Issue2
https://www.nxtbook.fr/newpress/jeccomposites/jcm1911_131
https://www.nxtbook.fr/newpress/jeccomposites/jcm1909_130
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https://www.nxtbook.fr/newpress/jeccomposites/jcm1901_126
https://www.nxtbook.fr/newpress/jeccomposites/jcm1811_125
https://www.nxtbook.fr/newpress/jeccomposites/jcm1810_124
https://www.nxtbook.fr/newpress/jeccomposites/jcm1808_123
https://www.nxtbook.fr/newpress/jeccomposites/jcm1807_122
https://www.nxtbook.fr/newpress/jeccomposites/jcm1805_121
https://www.nxtbook.fr/newpress/jeccomposites/jcm1804_120
https://www.nxtbook.fr/newpress/jeccomposites/jcm1803_119
https://www.nxtbook.fr/newpress/jeccomposites/jcm1802_119-Supplement_Innovation_Report
https://www.nxtbook.fr/newpress/jeccomposites/jcm1801_118
https://www.nxtbook.fr/newpress/jeccomposites/jcm1711_117
https://www.nxtbook.fr/newpress/jeccomposites/jcm1710_116
https://www.nxtbook.fr/newpress/jeccomposites/jcm1708_115
https://www.nxtbook.fr/newpress/jeccomposites/jcm1707_114
https://www.nxtbook.fr/newpress/jeccomposites/jcm1706_113
https://www.nxtbook.fr/newpress/jeccomposites/jcm1704_112
https://www.nxtbook.fr/newpress/jeccomposites/jcm1703_111
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https://www.nxtbook.fr/newpress/jeccomposites/jcm1611_109
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https://www.nxtbook.fr/newpress/jeccomposites/jcm1608_107
https://www.nxtbook.fr/newpress/jeccomposites/jcm1607_106
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https://www.nxtbook.fr/newpress/jeccomposites/jcm1604_104
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https://www.nxtbook.com/newpress/jeccomposites/jcm1501_94
https://www.nxtbook.com/newpress/jeccomposites/jcm1412_93
https://www.nxtbook.com/newpress/jeccomposites/jcm1410_92
https://www.nxtbook.com/newpress/jeccomposites/jcm1409_91
https://www.nxtbook.com/newpress/jeccomposites/jcm1406_90
https://www.nxtbook.com/newpress/jeccomposites/jcm1405_89
https://www.nxtbook.com/newpress/jeccomposites/jcm1404_88
https://www.nxtbook.com/newpress/jeccomposites/jcm1403_87
https://www.nxtbook.com/newpress/jeccomposites/jcm1401_86
https://www.nxtbook.com/newpress/jeccomposites/jcm1311_85
https://www.nxtbook.com/newpress/jeccomposites/jcm1310_84
https://www.nxtbook.com/newpress/jeccomposites/jcm1308_83
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https://www.nxtbook.com/newpress/jeccomposites/jcm1304_80
https://www.nxtbook.com/newpress/jeccomposites/jcm1303_79
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