Fibrous structure for a part made of composite material having one or more archshaped portions

摘要

A reinforcing fiber structure for a composite material part is woven as a single piece by multilayer weaving between plural layers of weft yarns and plural layers of warp yarns arranged in adjacent manner between two faces of the structure. The fiber structure includes at least one arcuate portion extending over one of the faces of the fiber structure, the arcuate portion including at least some of the warp yarns continuous with at least two adjacent warp yarn layers present on one of the faces of the structure. The warp yarns of the arcuate portion are of a length that is longer than the warp yarns of at least two underlying warp yarn layers of the structure. In addition, the warp yarns of the arcuate portion are not interlinked with other warp yarns of the fiber structure.

主权项

1. A composite material part comprising:
fiber reinforcement densified by a matrix; the reinforcement including a reinforcing fiber structure for the composite material part, the structure being woven as a single piece by multilayer weaving between a plurality of layers of weft yarns and a plurality of layers of warp yarns arranged in adjacent manner between two faces of the fiber structure; wherein the fiber structure includes at least one arcuate portion extending over one of the faces of the fiber structure, the arcuate portion comprising at least some of the warp yarns continuous with at least two adjacent warp yarn layers present on one of the faces of the fiber structure, the warp yarns of the arcuate portion being of a length that is longer than the warp yarns of at least two underlying warp yarn layers of the fiber structure, and the warp yarns of the arcuate portion are not interlinked with other warp yarns of the fiber structure.