JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 91

Classic exact solutions for anisotropic plates
The analytical solutions available in Lekhnitskii’s Anisotropic Plates cover various applications of anisotropic beams and plates. The Stanford Composite Design Group started a project to develop a computational tool based on the solutions for nearly all cases presented in this classic book. The first version has been released as MicMac-Hole and includes sections on stress distribution in a plate with elliptic or circular openings. Arbitrary normal and shear inplane loads can be applied to the orthotropic plate with elastic inclusion. The inclusion in the openings can be either open or filled with elastic or rigid materials. Inner pressure and shear loads and rigid interferences can be applied to the holes. In addition to stress distribution around the open or filled hole, strength ratios after failure analyses are calculated and plotted in Excel worksheets. Figure 9 shows stress and failure index profiles along the circumference of a hole in a carbon/epoxy plate for different inclusions. These solutions are effective preliminary design tools for many problems involving bolted joints, hole repair and others.

Fig. 6: Stress-strain curves of undamaged, damaged and repaired laminates

Fig. 7: Experimental results (top) versus predictions (bottom)

3D beam analysis
Beam models can be used to represent a variety of major structural members. Such members need to be analyzed to ensure the integrity of the whole structure. To this effect, an easy-to-use Excel-based design tool was developed to predict the deformation and strength of 3D composite beams: 3D-Beam. When combined with Super MicMac+, it can be used to predict a structure’s life. An example is given in Figure 8.

Fig. 9: Stress and failure index profile along an opening in a quasi-isotropic composite plate; three different inclusions are considered

Nanocomposites
The potential for developing materials with novel properties has made nanocomposites one of the areas of greatest interest in composites research. Composite material properties are designed to

Fig. 8: 3D-Beam modelling of a fuselage and wing with stringers and spars

Fig. 10: Nanoscale structure Ref (INCTMN/ CMDMC)

No56 April 2010 / jec composites magazine

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JEC COMPOSITES MAGAZINE - Issue #56 - April 2010

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #56 - April 2010

Cover
Editorial
Market Place
Advertisers
Index
Contents
NEWS WORLDWIDE
Companies
- A pole of reference for the development of technical flax
- Inauguration of the Duqueine Site - Airbus A350 XWB
- ABMACO and IPT start a composite recycling programme
- Bayer MaterialScience opens world's largest carbon nanotube pilot facility
- Premium Aerotec in Augsburg receives autoclave for fuselage structure of A350 XWB
Agenda of events
BUSINESS
Market survey
- Carbon fibre worldwide market
- Carbon fibres at JEC Show Paris 2010
Human capital
- EHS manager : a professional’s point of view
FEATURE SPECIAL JEC SHOW 2010
Guest of Honor
- JEC Composites Show Paris 2010 : Richard Morrison Guest of Honor
End-users conferences & forums
JEC Innovation Awards Programme 2010
Country Guest of Honor : Italy
- The composite material industry in Italy : achievements and perspectives
- Innovative bio-based composites for automotive applications
- On board with CMS Industries : BMW Oracle Racing wins the 33rd America’s Cup
- Lamellar filament winding
Pavilion USA
- Overview of the US pavilion
- Applying automation to the fabrication of composite-based aerospace parts
Feature Automation
- Main trends at JEC Composites Show Paris 2010
- Glass-filament twisting
- Laser-assisted thermoplastic tape lying
- Continuous impregnation of carbon-fibre rovings
USERS’ PLATFORM
Composites in the world
- French pavilion at the Shanghai World Expo 2010
- Chariot skates
- The Peugeot SR1 concept
Successful partners
- Intelligent composite “seismic wallpaper”
Application
- A balsa-cored bridge deck installed in Louisiana
- A scale 1 : 1 tennis racquet model
KNOW-HOW
Simulation
- Mastering simulation methods and tools for composite design
CNT
- Practical use of Graphistrenght® CNT concentrates in composites
- Moving towards industrial-scale high-tech applications
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - Cover
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 2
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - Editorial
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - Market Place
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - Index
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - Contents
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 7
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - NEWS WORLDWIDE
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - A pole of reference for the development of technical flax
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Premium Aerotec in Augsburg receives autoclave for fuselage structure of A350 XWB
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 11
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 13
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 14
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - BUSINESS
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Carbon fibre worldwide market
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 17
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Carbon fibres at JEC Show Paris 2010
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 19
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 20
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 21
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - EHS manager : a professional’s point of view
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - FEATURE SPECIAL JEC SHOW 2010
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - JEC Composites Show Paris 2010 : Richard Morrison Guest of Honor
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 25
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - End-users conferences & forums
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 27
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 28
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 29
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 30
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - JEC Innovation Awards Programme 2010
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 32
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 33
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 34
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 35
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 36
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 37
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 38
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 39
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 40
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 41
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 42
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 43
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - The composite material industry in Italy : achievements and perspectives
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 45
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 46
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 47
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 48
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Innovative bio-based composites for automotive applications
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 50
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - On board with CMS Industries : BMW Oracle Racing wins the 33rd America’s Cup
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 52
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Lamellar filament winding
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Overview of the US pavilion
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 55
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 56
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 57
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Applying automation to the fabrication of composite-based aerospace parts
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 59
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 60
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 61
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 62
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Main trends at JEC Composites Show Paris 2010
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 64
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 65
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 66
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 67
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Glass-filament twisting
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 69
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 70
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Laser-assisted thermoplastic tape lying
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 72
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 73
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 74
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Continuous impregnation of carbon-fibre rovings
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 76
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - USERS’ PLATFORM
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - The Peugeot SR1 concept
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Intelligent composite “seismic wallpaper”
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 80
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 81
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - A balsa-cored bridge deck installed in Louisiana
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 83
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - A scale 1 : 1 tennis racquet model
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 85
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 86
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - KNOW-HOW
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 88
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Mastering simulation methods and tools for composite design
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 90
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 91
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 92
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Practical use of Graphistrenght® CNT concentrates in composites
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 94
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 95
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - - Moving towards industrial-scale high-tech applications
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 97
JEC COMPOSITES MAGAZINE - Issue #56 - April 2010 - 98
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