JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 25

ski to resist the abrasion of ice and snow and the scratching of stones; its yield strength contributes N. P. : The introduction of glass to the ski's resistance to the fibre, in the 1960s, offered major high levels of deformation, improvements in the strength and while the honing of the durability of skis. Skis are subject edges allows the ski to bite to high degrees of deformation, into the snow. and therefore require materials - Above the base there is a with high yield strength. composite layer with glass Our structures are heterogeneous fibre/epoxy reinforcement; beams, combining wooden, foam this laminate is the ideal or honeycomb cores with composite material (more composite reinforcements (glass, commonly used than basalt, carbon or aramid fibre carbon fibre) for fabrics) and aluminium alloys. addressing the problem of These high-performance extreme mechanical composite materials make it deformation that the ski possible, on the one hand, to undergoes during use. design equipment offering the - We make extensive use of user better sensations and laminated wood as a comfort and, on the other, to material in our cores, since meet the extremely severe it is an excellent natural durability requirements composite (cellulose (minimum temperatures of microfibres, lignin matrix). 30°C, ice, speed, carving stresses, The glued-laminated etc.). The development of our technique makes high-performance skis therefore it possible to stabilise the integrates all the design variations in mechanical parameters associated with characteristics and composite reinforcements orientate the fibres in order (orientation, areal weight, and to improve performance type of fibres). levels. The polyurethane foam cores provide benefits
JCM: Why is there an increasing use of composites? What parts will never be made out of composites? JCM: A ski may be considered as a kind of complex beam. What are its constituent elements and what types of material are used for each of these elements?

in terms of lightness and 3D forming using the injection process. - Aluminium alloy reinforcements are associated with the glassepoxy reinforcements in order to constitute "fibrometal" structures. These alloys are included in the composition of our skis for their isotropic characteristics and their good vibration behaviour. - Next come the lateral transmission zones: these are the sidewalls, which may be made of ABS or phenolic materials. - Lastly there is the decorative thermoplastic layer that also plays a protective role (impacts and scratches, UV resistance, etc.), and which in the present case is a bilayer of ABS and polyurethane (ABS+TPU).

Thermoplastics = 26% Wood = 16% Steel and alloys = 30% Thermosets = 10% Fibres = 18%
JCM: What is the role of carbon and, now, of natural fibres?

N. P. : A ski may indeed be described as a heterogeneous beam, consisting of a glued assembly of up to a dozen different types of layer: - Base: the part that is in contact with the snow, this is made of high-density polyethylene (HDPE), also designated ultra-highmolecular-weight polyethylene (UHMWPE). - Steel edges: the hardness of this material allows the

Fig.1 : Main components for a complex heterogeneous beam ROSSITOP ABS+TPU GLass/epoxy reinforcement XC75 steel edge

N. P. : For our composite applications, carbon fibre is mainly used in cross-country skis. These products are not subjected to the same vibration and deformation conditions as alpine skis, and our technical requirements therefore differ greatly between these two families of products. The specific modulus of the reinforcements is optimised by means of carbon fibre in order to reconcile rigidity distribution, responsiveness and extremely low weight. The moulding also incorporates a Nomex core, and can be used to produce a skate ski (X-ium) that currently weighs just 500 g Fig.2(a). A lot of work has been done in recent years on touring skis by the As a rough guide, since the Dynastar brand, to benefit from compositions vary greatly an extremely lightweight structure according to the models and levels across the ranges, here is the that needs to resist stress and average weight distribution for a impact akin to those encountered by alpine skis. Here again, the use top-of-the-range ski, for each of carbon fibre and the machining family of materials:
No64 April 2011 / jec composites magazine

Aluminium alloy reinforcement ABS or phenologic sidewall

GLass/epoxy reinforcement Wooden of PU foam core

HDPE base

25

Market



JEC COMPOSITES MAGAZINE - Issue #64 - April 2011

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #64 - April 2011

Cover
Edito
Point of view: fast expansion
Contents
Agenda of Events
COMPANY & BUSINESS
In Brief
Reinforcement - Red Composites: a real expertise in carbon fibre
Housing - Housetec: a young company with a background of 40 years’ experience
Asia - Hua Dong Fibreglass, an SME that exports worldwide
APPLICATIONS
Construction - Creative eye-catching design for a new Sheraton hotel
Marine - Multiplast builds the Groupama V070
Awards - ICERP-JEC Innovation Awards Programme 2011: eight companies rewarded
MARKET
Human capital - Latest appointments
Sports and Leisure - Rossignol Group: innovation and performance in winter skis applications
FEATURE WIND ENERGY
Reinforcement - WebCore Technologies: great ambitions in the wind industry
New rovings for wind turbine blade applications
Prepreg spar caps: a solution for today
Software - Industrial software for manufacturing large components such as wind blades
Leveraging an end-to-end solution for composite wind turbine blades
Laser placement - Manufacturing rotor blades with highest precision while reducing costs
Automation - A fully-automated manufacturing process for wind blades
Maintenance - An innovative, certified blade repair system
RESEARCH & DEVELOPMENT
Testing - Using nano-scratch testing to detec composite failure
Mould - Processing technology for the rapid production of advanced composites
TECHNOLOGY & INNOVATIONS
Robot - Robotic fibre placement machine helps reduce energy consumption
Process - A new industrialized construction process for transport infrastructures
Fibre placement - Tape laying and fibre palcement: complementary solutions
NDT - What’s new in non-destructive testing labs?
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Cover
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 2
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Edito
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Point of view: fast expansion
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 5
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Contents
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 7
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Agenda of Events
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - In Brief
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Reinforcement - Red Composites: a real expertise in carbon fibre
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Housing - Housetec: a young company with a background of 40 years’ experience
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Asia - Hua Dong Fibreglass, an SME that exports worldwide
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 13
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Construction - Creative eye-catching design for a new Sheraton hotel
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 15
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Marine - Multiplast builds the Groupama V070
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 17
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Awards - ICERP-JEC Innovation Awards Programme 2011: eight companies rewarded
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 19
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 20
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 21
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 22
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Human capital - Latest appointments
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Sports and Leisure - Rossignol Group: innovation and performance in winter skis applications
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 25
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 26
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 27
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Reinforcement - WebCore Technologies: great ambitions in the wind industry
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 29
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - New rovings for wind turbine blade applications
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Prepreg spar caps: a solution for today
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Software - Industrial software for manufacturing large components such as wind blades
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 33
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Leveraging an end-to-end solution for composite wind turbine blades
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 35
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 36
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 37
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Laser placement - Manufacturing rotor blades with highest precision while reducing costs
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 39
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Automation - A fully-automated manufacturing process for wind blades
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 41
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Maintenance - An innovative, certified blade repair system
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 43
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 44
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Testing - Using nano-scratch testing to detec composite failure
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 46
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 47
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 48
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Mould - Processing technology for the rapid production of advanced composites
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 50
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 51
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 52
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Robot - Robotic fibre placement machine helps reduce energy consumption
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Process - A new industrialized construction process for transport infrastructures
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 55
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - Fibre placement - Tape laying and fibre palcement: complementary solutions
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 57
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - NDT - What’s new in non-destructive testing labs?
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 59
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 60
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 61
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 62
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 63
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 64
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 65
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 66
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 67
JEC COMPOSITES MAGAZINE - Issue #64 - April 2011 - 68
https://www.nxtbook.fr/newpress/jeccomposites/jcm2109_142
https://www.nxtbook.fr/newpress/jeccomposites/jcm2107_141
https://www.nxtbook.fr/newpress/jeccomposites/jcm2105_140
https://www.nxtbook.fr/newpress/jeccomposites/jcm2103_139
https://www.nxtbook.fr/newpress/jeccomposites/jcm-experts-digest-additive-manufacturing-2020
https://www.nxtbook.fr/newpress/jeccomposites/jcm2101_138
https://www.nxtbook.fr/newpress/jeccomposites/jcm2011_Special_Issue4
https://www.nxtbook.fr/newpress/jeccomposites/jcm2011_137
https://www.nxtbook.fr/newpress/jeccomposites/jcm2009_136
https://www.nxtbook.fr/newpress/jeccomposites/jcm2007_135
https://www.nxtbook.fr/newpress/jeccomposites/jcm_2020_Q1_Innovation_Report
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
https://www.nxtbook.fr/newpress/jeccomposites/jcm1907_129
https://www.nxtbook.fr/newpress/jeccomposites/jcm1905_128
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_Special_Issue1
https://www.nxtbook.fr/newpress/jeccomposites/jcm1903_127
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
https://www.nxtbook.fr/newpress/jeccomposites/jcm1701_110
https://www.nxtbook.fr/newpress/jeccomposites/jcm1611_109
https://www.nxtbook.fr/newpress/jeccomposites/jcm1610_108
https://www.nxtbook.fr/newpress/jeccomposites/jcm1608_107
https://www.nxtbook.fr/newpress/jeccomposites/jcm1607_106
https://www.nxtbook.fr/newpress/jeccomposites/jcm1605_105
https://www.nxtbook.fr/newpress/jeccomposites/jcm1604_104
https://www.nxtbook.fr/newpress/jeccomposites/jcm1603_103
https://www.nxtbook.fr/newpress/jeccomposites/jcm1601_102
https://www.nxtbook.fr/newpress/jeccomposites/jcm1511_101
https://www.nxtbook.fr/newpress/jeccomposites/jcm1510_100
https://www.nxtbook.fr/newpress/jeccomposites/jcm1509_99
https://www.nxtbook.fr/newpress/jeccomposites/jcm1507_98
https://www.nxtbook.fr/newpress/jeccomposites/jcm1505_97
https://www.nxtbook.fr/newpress/jeccomposites/jcm1504_96
https://www.nxtbook.com/newpress/jeccomposites/jcm1503_95
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
https://www.nxtbook.com/newpress/jeccomposites/jcm1307_82
https://www.nxtbook.com/newpress/jeccomposites/jcm1305_81
https://www.nxtbook.com/newpress/jeccomposites/jcm1304_80
https://www.nxtbook.com/newpress/jeccomposites/jcm1303_79
https://www.nxtbook.com/newpress/jeccomposites/jcm1301_78
https://www.nxtbook.com/newpress/jeccomposites/jcm1212_77
https://www.nxtbook.com/newpress/jeccomposites/jcm1210_76
https://www.nxtbook.com/newpress/jeccomposites/jcm1208_75
https://www.nxtbook.com/newpress/jeccomposites/jcm1207_74
https://www.nxtbook.com/newpress/jeccomposites/jcm1206_73
https://www.nxtbook.com/newpress/jeccomposites/jcm1204_72
https://www.nxtbook.com/newpress/jeccomposites/jcm1203_71
https://www.nxtbook.com/newpress/jeccomposites/jcm1201_70
https://www.nxtbook.com/newpress/jeccomposites/jcm1111_69
https://www.nxtbook.com/newpress/jeccomposites/jcm1110_68
https://www.nxtbook.com/newpress/jeccomposites/jcm1108_67
https://www.nxtbook.com/newpress/jeccomposites/jcm1107_66
https://www.nxtbook.com/newpress/jeccomposites/jcm1105_65
https://www.nxtbook.com/newpress/jeccomposites/jcm1104_64
https://www.nxtbook.com/newpress/jeccomposites/jcm1103_63
https://www.nxtbook.com/newpress/jeccomposites/jcm1101_62
https://www.nxtbook.com/newpress/jeccomposites/jcm1011_61
https://www.nxtbook.com/newpress/jeccomposites/jcm1010_60
https://www.nxtbook.com/newpress/jeccomposites/jcm1009_59
https://www.nxtbook.com/newpress/jeccomposites/jcm1006_58
https://www.nxtbook.com/newpress/jeccomposites/jcm1005_57
https://www.nxtbook.com/newpress/jeccomposites/jcm1004_56
https://www.nxtbook.com/newpress/jeccomposites/jcm1003_55
https://www.nxtbook.com/newpress/jeccomposites/jcm1001_54
https://www.nxtbook.com/newpress/jeccomposites/jcm0911_53
https://www.nxtbook.com/newpress/jeccomposites/jcm0910_52
https://www.nxtbook.com/newpress/jeccomposites/jcm0909_51
https://www.nxtbook.com/newpress/jeccomposites/jcm0907-08_50
https://www.nxtbook.com/newpress/jeccomposites/jcm0906_49
https://www.nxtbook.com/newpress/jeccomposites/jcm0904_48
https://www.nxtbook.com/newpress/jeccomposites/jcm0903_47
https://www.nxtbook.com/newpress/jeccomposites/jcm0901_46
https://www.nxtbook.com/newpress/jeccomposites/jcm0811_45
https://www.nxtbook.com/newpress/jeccomposites/jcm0810_44
https://www.nxtbook.com/newpress/jeccomposites/jcm0809_43
https://www.nxtbook.com/newpress/jeccomposites/jcm0807_42
https://www.nxtbook.com/newpress/jeccomposites/jcm0806_41
https://www.nxtbook.com/newpress/jeccomposites/jcm0805_40
https://www.nxtbook.com/newpress/jeccomposites/jcm0803_39
https://www.nxtbook.com/newpress/jeccomposites/jcm0801_38
https://www.nxtbook.com/newpress/jeccomposites/jcm0712_37
https://www.nxtbook.com/newpress/jeccomposites/jcm0710_36
https://www.nxtbook.com/newpress/jeccomposites/jcm0709_35
https://www.nxtbook.com/newpress/jeccomposites/jcm0707_34
https://www.nxtbook.com/newpress/jeccomposites/jcm0706_33
https://www.nxtbookmedia.com