Pi-shaped preform with non-linear legs and method to manufacture it

A woven preform (200) for a reinforced composite material, which may be woven flat and folded into shape. The preform has a three-dimensional weave architecture with weft fibers (214) woven to provide layer-to-layer interlocking of layers of warp fiber (216) as well as interlocking of fibers within...

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Bibliographische Detailangaben
Hauptverfasser:	GOERING, JONATHAN, OUELLETTE, KENNETH
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING LOOMS METHODS OF WEAVING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TEXTILES TRANSPORTING WEAVING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WOVEN FABRICS
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Beschreibung
Zusammenfassung:	A woven preform (200) for a reinforced composite material, which may be woven flat and folded into shape. The preform has a three-dimensional weave architecture with weft fibers (214) woven to provide layer-to-layer interlocking of layers of warp fiber (216) as well as interlocking of fibers within each layer. One or more legs (225, 235) extend from a base (220), the base (220) and legs (225, 235) each having at least two layers of warp fibers (216).The legs move along a sine wave in the warp and/or weft direction and may be parallel or angled to each other.The outer ends of the base and/or the legs preferably have tapers formed from terminating layers of warp fibers in a stepped pattern.