Design/Simulation

Revisioning the Viper: Clamshell hood challenge

Autoclave-cured carbon-fiber prepreg hood/fender combo proves as technically formidable as it is visually stunning.

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Software isolates, identifies porosity-related flaws in tooling from fuselage test data

Software and composites manufacturing data specialist NLign Analytics, a division of Etegent Technologies (Cincinnati, Ohio) helps identify and track product flaws caused by tooling porosity.

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Aerospace

Virtual testing of composites: Beyond make & break

Software-based micromechanical modeling and analysis methods promise faster and more cost-effective aircraft development and testing programs.

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Designing for high pressure: Large-diameter underground pipe

Careful analysis is needed to ensure success of buried composite piping for industrial applications.

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Aerospace

Integrated, optimized aircraft door

This composites manufacturer is betting its one-piece 3-D preform and RTM process will trim weight from today’s fastener-intensive “black aluminum” aircraft doors.

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Wind/Energy

Ply placement: Largest laser projection system for wind blade manufacture

Following the recent installation of a 16-projector system for an aircraft fuselage application, Assembly Guidance Systems Inc. (Chelmsford, Mass.) recently delivered what it says is the largest unified laser-projection system of its kind, for wind turbine blade fabrication.

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Marine

Software enables submarine shipyard’s composites-for-metal effort

When Howaldtswerke-Deutsche Werft GmbH (Kiel, Germany) looked for a software solution to reduce the risk of using composites for a greater range of thicker parts, FiberSIM software from VISTAGY Inc. (Waltham, Mass.) enabled its engineers to develop initial designs more quickly and to better understand the impact of design changes.

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Thermocouple innovation shortens autoclave setup for stringers/frames

ATK Aerospace Structures (Clearfield, Utah) trials a thermocouple system from TE Wire & Cable LLC (Saddle Brook, N.J.) called AccuConnect, which cuts thermocouple setup time from 2.5 hours to 20 minutes.

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Sea and land transport: Hydro elevation

Composites lightweight and toughen the hull and superstructure of this transplanted amphibious naval hovercraft.

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Aerospace

Self-deployable, composite satellite boom

Researchers design and validate a boom made of ultrathin carbon-fiber/epoxy laminate, using a novel, highly accurate analysis method.

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