Process For Inhibiting Delamination In A Bend Of A Continuous Fiber-Reinforced Composite Article

A process for inhibiting delamination in a bend (34) of a component formed of a continuous fiber-reinforced composite material having layers containing arrays of unidirectional fibrous elements (32) in a matrix material. A preform (30) of the component is formed by laying-up prepreg tapes correspond...

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Hauptverfasser:	MCGUIGAN, HENRY CHARLES, CORMAN, GREGORY SCOT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ENGINE PLANTS IN GENERAL HEATING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PERFORMING OPERATIONS REFRACTORIES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SLAG STEAM ENGINES TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A process for inhibiting delamination in a bend (34) of a component formed of a continuous fiber-reinforced composite material having layers containing arrays of unidirectional fibrous elements (32) in a matrix material. A preform (30) of the component is formed by laying-up prepreg tapes corresponding to layers of the component. Each tape contains a matrix precursor, a binder, and an array of the fibrous elements (32). The tapes are laid-up so that the fibrous elements (32) of at least a first tape traverse the bend (34), and the fibrous elements (32) lie in planes (38,40) that are not perpendicular to the axis (36) of curvature of the bend (34). The preform (30) then undergoes thermal processing, during which delamination of the layers in the bend (34) is inhibited as a result of none of the fibrous elements (32) lying in a plane perpendicular to the axis (36) of curvature of the bend (34).