Fiber structure and a composite material part incorporating such a structure
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United States of America Patent
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Jan 24, 2023
Grant Date -
Aug 5, 2021
app pub date -
Apr 2, 2021
filing date -
Nov 14, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A method of fabricating a fiber structure by multilayer three-dimensional weaving between a plurality of weft yarns and of warp yarns, the fiber structure having at least first and second portions that are adjacent in the warp direction, the first portion presenting, in a direction perpendicular to the warp and weft directions, a thickness greater than the thickness of the second portion, includes making the first portion using a step of three-dimensionally weaving warp and weft layers in which a fiber fabric is formed in the form of a Mock-Leno weave grid in a core of the first portion together with skins at a surface of the first portion, a weave of the skins being modified locally so as to deflect certain warp yarns from said skins and weave them with the fiber fabric in the form of the Mock-Leno weave grid.
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