JEC COMPOSITES MAGAZINE - Issue #73 - June 2012 - 35

other sectors

> Booth G19 Composite Patch – the universal composite repair system

HexMC carbon fibre/epoxy moulded parts for Boeing 787
aero

> Booth C12

Composite Patch is an all-weather, error-proof and fast curing composite repair system that bonds to virtually any surface and hardens fast in the coldest weather, in the snow or even underwater. This makes composite repairs possible for any untrained user. The system is a simple repair solution: the fibre, the epoxy resin and the hardener are all contained in a waterproof pouch – ready to mix and use. The right resin/hardener ratio is pre-dosed for each patch and they are separated by an easy-to-remove clip. The resin is yellow, the hardener is blue and the mix is green when ready to use. Once the resin is mixed, the user removes the second clip and spreads the mix onto the fibre, then he simply cuts open the plastic and applies the repair patch like a bandage. repairs can be performed in less than 5 minutes and 90% of the resin strength is obtained a few hours after gelling in any weather conditions. This repair system eliminates the need for resin and hardener pails, electronic scales, mixing cups, stirrers, rollers & brushes, and cleaning solvents. Composite Patch produces and sells on-line repair patches for permanent structural repairs that combine epoxy resin with carbon or glass fibre. The company was founded by chemical engineers with large polymer r&d experience, boat-building project managers with aerospace experience, together with a leading European epoxy resin formulator. www.compositepatch.com
other sectors

The first boeing 787 was delivered on September 26th 2011, an aircraft on which hundreds of HexMC parts from Hexcel have been certified. HexMC is a new product form of composite material which is derived from established aerospace industry high strength carbon fiber/epoxy tape. HexMC offers low density, with good strength and stiffness properties, enabling complex shapes that would previously have had to be machined or forged from metal to be manufactured in composites in cost-effective series production. HexMC parts provide weight savings that are comparable to those achieved with aerospace carbon/epoxy prepregs. Hundreds of HexMC parts have been certified for the 787 dreamliner including Window Frames, brackets, Fittings, gussets, Clips/Cleats, Intercostals and Pans. The HexMC window frame has a significant impact on two key characteristics of the dreamliner. The new low density, high strength composite frame results in almost a 50 percent weight saving over a traditional aluminum frame. In addition, the frame offers superior damage tolerance.
www.hexcel.com

Unbalanced thin ply bi-axial NCF

> Booth F6

For the first time in Asia, Chomarat will present the first industrial carbon parts produced using C-PLy™ biAngle non crimp fabric (NCF). C-PLy™ bi-Angle NCF is an unbalanced thin-ply biaxial carbon reinforcement developed in partnership with research groups, companies and universities from around the world. The product range was developed to meet the demands of manufacturers focused on lighter and stronger parts. The thin plies (50-75 g/m²) in C-PLy™ bi-Angle play a key part in the material’s performance in parts such as aerospace fuselage components. beams can also benefit from its multi-axial assembly with small angles ranging from 20° to 30°. This reinforcement offers exceptional weight savings – up to 30% compared to a standard carbon construction. It was developed to enhance composite parts that require greater strength in certain directions (anisotropy). Newly developed NCF in various material combinations – including thin-ply carbon/glass hybrid NCF, thick and thin carbon hybrid NCF, and thick glass/thin carbon hybrid NCF – provide a new range of possibilities. glass fibre spreading also allows the development of materials with a basis weight as low as 150 gsm per ply, using 1200 tex glass roving. The wind energy and automotive industries, where performance and weight-reduction issues are in contest, will also benefit from this breakthrough technological development. www.chomarat.com

Simulation
other sectors

Innovative design and manufacturing of composite products

> Booth F13

driven by the need to deliver major improvements in composite simulation at every release, digimat 4.2.1 introduces tools that speed-up simulation time and include new functionalities to help design and manufacture composite materials in a robust, fast and easy way. The new Hybrid Solution Procedure gives digimat the capability to predict in a fast and accurate way the nonlinear anisotropic behaviour of industrial parts. Hybrid Solution Procedure should be used in the first iterative design steps while the final design will be validated with the classical micro approach. The new interface with Simulayt draping software expands digimat’s material modelling capabilities to continuous fibre composites. digimat-MF features the capability to predict S(N) curves as a function of the local fibre orientation. This functionality will be soon available via digimat interfaces with major fatigue codes. digimat is already fully integrated within major CAE codes as the standard material model to perform nonlinear multi-scale modelling analysis of reinforced materials and structures. MSC.Marc and LS-dyNA implicit software have been added to the list of available solvers. www.e-Xstream.com No73 June 2012 /

jec composites magazine 35
http://www.compositepatch.com http://www.hexcel.com http://www.chomarat.com http://www.e-Xstream.com
JEC COMPOSITES MAGAZINE - Issue #73 - June 2012

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #73 - June 2012
