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AssigneesSnecma, Snecma Propulsion Solide
InventorsDominique Coupe, Bruno Dambrine, Jean Noel Mahieu, Eric Bouillon, Francois Charleux
Estimating the term…
A woven fibrous structure embodied in one piece, used for producing a composite material part and comprising an internal part or a core (72) and a part adjacent to the external surface thereof or a skin (74, 76), is formed by three-dimensional core weaving with at least one weave selected from interlock and multilayer weaves and by skin weaving with a weave which differs from the core weave and selected from a multilayer weave and a two-dimensional weave. It can be also formed by three-dimensional weaving with at least one core interlock weave (72) and weaving with a fabric-, satin or skin twill-type weave, wherein skin weaving is of a multilayer or two-dimensional type.
A reinforcing fiber structure woven as a single piece for fabricating a composite material part, the fiber structure having an internal portion or core, and a portion adjacent to an outside surface of the structure, or skin, and the fiber structure being formed by a three-dimensional weaving in its core using at least one weave selected from an interlock weave and a multilayer weave, and by weaving at its skin with a weave of satin type.
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Dependencies are inferred from the claim text.