JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 42

FEATURE “Aeronautics” Application Attainable solutions with composite materials S.G. Lekhnitskii’s book Anisotropic Plates, translated 40 years ago by Prof. Stephen W. Tsai, already presented solutions to composite problems. In other words, solutions to our problems in composite material applications do exist and they are within our grasp, if only we are well aware of what we are looking for and which tools we have to use. To illustrate this, we will describe two composite applications for Embraer’s Phenom 100 executive jet. that differs from usual bulkhead concepts. The only way to satisfy the boundary conditions imposed by the design was to use composite materials, with a different core solution that made it possible to meet the stiffness requirements. Extensive testing was the only way to find answers to questions about the radius concordance and internal parts, metal-composite joint reliability and manufacturing defects. Due to aerodynamic requirements, the tail assembly was designed based on stiffness criteria, something that would be impossible to do with aluminium. In this case, the use of a composite material was the right solution. As integration is the greatest advantage of composite materials, the vertical tail was designed as a single piece, i.e. a one-shot process. A preliminary development test under bending and torsion in a closed composite box was performed to understand the failure mode. This test facilitated improvements in the lamination definition and in the production process. Composite bulkhead flat panel and tail-assembly structures were submitted to two lifetimes (of the aircraft) with visible and nonvisible damage. The structures proved to have residual strength, withstanding the ultimate load. The load enhancement factor (LEF) and environmental load factor (ELF) were taken into account. The Phenom 100 was certified by FAA on December 12, 2008. Fig. 1: Composites applications in the Embraer Phenom 100. FRANCISCO K. ARAKAKI, SENIOR SPECIALIST, COMPOSITE STRUCTURES, EMBRAER he problem begins with the classical question: composite or metal? In this case, issues like parameter costs, weight, producibility and maintenance are left aside. For many reasons that are not discussed here, cost is very difficult to estimate in the early stages of design and therefore, it is also very difficult to cost-compare metals and composite materials early on. Generally speaking, issues like technical manufacturing, reliability and aircraft certification are more important during this phase. Other decisional parameters are the boundary condition restrictions and design/analysis criteria. T Figure 1 shows the composite primary and secondary structures of the Phenom 100 aircraft. The composite applications for this airplane involved many challenges, especially the tail assembly and the pressure bulkhead. Damage infliction, damage detection, BVD measure, load factors, repair, spectrum truncation, metal-composite joint, and environmental effects are some of the key issues here. There are solutions to the challenges at hand, if we design with composite materials in mind. Contact: francisco.arakaki@embraer.com.br Meeting stiffness requirements Due to the design criteria, the pressure bulkhead is a flat panel More information: www.embraer.com.br 42 jec composites magazine / No48 May 2009
http://www.embraer.com.br

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #48 - May 2009

Cover
INDEX
CONTENTS
NEWS WORLDWIDE
Companies - AGY expands into Asia Pacific
- Ranger uses expertise to gain foothold in China
- Swancor: two-digit growth and double the ambition
Agenda of events
Innovations - Diamond tool producer celebrates 50th anniversary
 - Eliminating dust from your work environment
 - Autoclaves from XS to XXL
BUSINESS
Market survey - Industrialization of the carboncomposite industry (2nd part)
Strategy - Growth strategies during turbulent times
Trends - A comprehensive view of software and services
Niche market: Luggage - Beautiful structural balance
FEATURE AERONAUTICS
Design - Pushing the envelope in composites design
Engineering - Reducing the complexity of composites engineering
Testing - Laboratory infusion test unit: for new materials testing and process validation
Simulation - An industrial solution to simulate post-buckling and damage
Application - Attainable solutions with composite materials
 - Benzoxazine resin sytems for future interior applications
 - Prototype A350 XWB composite wing spars
FEATURE DISTRIBUTION
Japan - Strongly committed to customer satisfaction
India - “Distribution in India is quite a complex and challenging proposition”
Iran - The History of Polyfiber Company
Australia - Lance Brown: a global market view
USERS’ PLATFORM
Composites in the world - Adaptive energy concept
 - Golf club head
 - Thermoplastic wind turbines in Antarctica
 - High-quality headphones
Successful partners - The A400M cargo door: faster, lighter and better value
Application - Mass-produced zero-emission vehicle
KNOW-HOW
Nanotubes - Carbon nanotubes in polymer matrix composite structures
Control - Process control through dielectric monitoring
Materials - Recent advancements in materials for liquid resin infusion
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Cover
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 2
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 3
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 4
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - INDEX
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - CONTENTS
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 7
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 8
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Companies - AGY expands into Asia Pacific
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - - Ranger uses expertise to gain foothold in China
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 11
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 12
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 13
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - - Swancor: two-digit growth and double the ambition
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 15
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 17
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Innovations - Diamond tool producer celebrates 50th anniversary
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 -  - Eliminating dust from your work environment
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 -  - Autoclaves from XS to XXL
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - BUSINESS
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Market survey - Industrialization of the carboncomposite industry (2nd part)
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 23
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Strategy - Growth strategies during turbulent times
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 25
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 26
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Trends - A comprehensive view of software and services
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 28
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 29
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Niche market: Luggage - Beautiful structural balance
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - FEATURE AERONAUTICS
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Design - Pushing the envelope in composites design
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 33
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 34
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Engineering - Reducing the complexity of composites engineering
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 36
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 37
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Testing - Laboratory infusion test unit: for new materials testing and process validation
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 39
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Simulation - An industrial solution to simulate post-buckling and damage
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 41
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Application - Attainable solutions with composite materials
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 43
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 -  - Benzoxazine resin sytems for future interior applications
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 45
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 -  - Prototype A350 XWB composite wing spars
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - FEATURE DISTRIBUTION
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Japan - Strongly committed to customer satisfaction
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 49
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 50
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - India - “Distribution in India is quite a complex and challenging proposition”
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 52
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Iran - The History of Polyfiber Company
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 54
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Australia - Lance Brown: a global market view
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 56
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - USERS’ PLATFORM
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 -  - Golf club head
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 -  - High-quality headphones
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Successful partners - The A400M cargo door: faster, lighter and better value
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 61
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Application - Mass-produced zero-emission vehicle
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - KNOW-HOW
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Nanotubes - Carbon nanotubes in polymer matrix composite structures
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 65
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 66
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 67
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 68
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Control - Process control through dielectric monitoring
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 70
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 71
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - Materials - Recent advancements in materials for liquid resin infusion
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 73
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 74
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 75
JEC COMPOSITES MAGAZINE - Issue #48 - May 2009 - 76
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