Novel composite parts, methods and apparatus for manufacturing the same

a composite part and composite technology, applied in the direction of knitting, ornamental textile articles, blood vessels, etc., can solve the problem that existing textiles are unable to produce flat reinforcement fabrics

US20130269159A1Inactive Publication Date: 2013-10-17UNIVERSITY OF OTTAWA
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
Publication Date
2013-10-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

Described is a method of forming a textile perform for a mold having a complex curvature.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] This application claims benefit of priority to U.S. Provisional Patent Application No. 61 / 409,610 filed Nov. 3, 2010 which is incorporated by reference in its entirety.BACKGROUND

[0002] 1. Field of the Invention

[0003] The present invention relates to methods of producing reinforcement fabrics for polymer-matrix composite (PMC) materials, especially PMC materials with high volume fractions of structural fibres produced by impregnation of the reinforcement with a curable or otherwise solidified polymer.

[0004] 2. Related Art

[0005] Existing textile are unable to produce flat reinforcement fabrics that are thick, net-shape, drapable onto doubly-curved surfaces, and made from continuous yarns oriented in a way to promote coverage, resin flow and / or structural stiffness.SUMMARY

[0006] According to one broad aspect, the present invention provides a method comprising the following step: (a) forming a textile preform for a mold having a complex curvature,...

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Nomenclature

[0162]In the description that follows, the following Roman letter units have the following meanings:[0163]A Component in the Equation of a Plane[0164]Ap Surface Area of a Drape Element[0165]a Amplitude of Curved Fibre m[0166]B Component in the Equation of a Plane[0167]bmax Upper Threshold of the Brick Space[0168]bmin Lower Threshold of the Brick Space[0169]bound1 First Point of Intersection Between the Line of Intersection and an Element Edge[0170]bound2 Second Point of Intersection Between the Line of Intersection and an Element Edge[0171]C Component in the Equation of a Plane[0172]vector cn Vector Normal to the Pane of the Circle of Intersection[0173]cc Centre of the Circle of Intersection[0174]cd Component in the Equation of the Plane of the Circle of Intersection[0175]cr Radius of the Circle of Intersection[0176]c1 Constant Used to Define the Equation of a Line of Intersection Between Two Planes[0177]c2 Constant Used to Define the Equation of a Line of Intersection B...