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Fibrous structure for a part made of composite material having one or more arch-shaped portions

A composite material, fiber structure technology, applied in the field of manufacturing composite material parts, can solve the problem of high total weight, can not provide mechanical strength and so on

Active Publication Date: 2013-08-21
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION (S N E C M A)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the enormous (thousands of tons) mechanical stresses acting on the engine mounts, such a casing design does not provide sufficient mechanical strength
As a result, parts of this type have so far been made of metal and thus have a relatively high overall weight

Method used

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  • Fibrous structure for a part made of composite material having one or more arch-shaped portions
  • Fibrous structure for a part made of composite material having one or more arch-shaped portions
  • Fibrous structure for a part made of composite material having one or more arch-shaped portions

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] The invention is generally used for the manufacture of fiber structures suitable for constituting fiber reinforcements or preforms for the manufacture of composite parts comprising at least one arched element.

[0032] According to the invention, the part of the fiber structure forming the arched element is made integrally with the remainder of the fiber structure. More precisely, as described in more detail below, the portion forming the arched element is woven from warp yarns that are continuous with the remainder of the structure. In this way, the forces exerted on the arched element can be taken up by the fiber structure constituting the reinforcement of the composite material part as a whole. figure 1 Shown is a casing 10 of an aeroengine made of composite material forming a casing 11 having features for enabling the engine to be attached to wing supports (not shown on figure 1 Middle) on the suspension platform 12.

[0033] figure 2 is a very schematic view of...

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PUM

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Abstract

A fibrous reinforcing structure (100) for a part made of composite material is woven as a single piece by multilayer weaving between a plurality of layers of warp threads (101) arranged adjacently between two faces of said structure and a plurality of layers of weft threads (102). The fibrous structure (100) comprises at least one arch-shaped portion (120) extending above one of the faces of said fibrous structure (100), the arch-shaped portion (120) comprising at least some of the continuous warp threads (101) of at least two adjacent layers of warp threads present on one of the faces of the structure (100). The warp threads of the arch-shaped portion (120) are of a greater length than the warp threads of at least the two underlying layers of warp threads of the fibrous structure (100). The warp threads of the arch-shaped portion (120) are also disconnected from the other warp threads of the fibrous structure (100).

Description

technical field [0001] This invention relates to the manufacture of composite material parts, and more particularly to the manufacture of fiber reinforced structures for such parts. Background technique [0002] The field of application of the invention is more specifically the manufacture of parts made of structural composite materials, ie parts having a fiber-reinforced structure densified with a matrix. Composite materials make it possible to manufacture parts with an overall weight lower than the same parts made of metal. [0003] Standard-shaped parts made of composite materials usually have good structural characteristics and high strength, especially since the fiber reinforcement of the part is usually made as a single piece, thus making it possible for mechanical forces acting on any part of the part to well distributed. [0004] Conversely, when manufacturing composite parts with more complex shapes, especially those that have one or more elements that support the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D11/02D03D25/00B29C70/24B64D29/02
CPCB29B11/16B29C70/222D03D11/02D03D25/005D10B2505/02F01D25/24F05D2300/603Y10T428/24612Y02T50/60B64D27/40B64D27/00D03D1/00D03D13/004
Inventor 蒂里·戈登布鲁诺·杰克斯·杰拉德·达米布瑞恩
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION (S N E C M A)
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