PREFORMED FOR STRENGTHENING A COMPOSITE STRUCTURE, THREE-DIMENSIONAL COMPOSITE STRUCTURE REINFORCED WITH A PREFORM, A PRE-SHAPED MANUFACTURING METHOD FOR STRENGTHENING A COMPOSITE STRUCTURE AND METHOD FOR MANUFACTURING A COMPREHENSIVE THREE-DIMENSIONAL STRUCTURE

摘要

Pre -form used to reinforce a composite structure, enhanced three -dimensional composite structure with a pre -shape, method of manufacture of a pre -shape used to reinforce a composite 5 structure and method of manufacturing a three -dimensional composite structure at this time This relates to multidirectionally reinforced fibre preforms that easily fit complex curvatures, such a s composites of turbine blades, jet engine restraint rings, aircraft fuselage frames,Aircraft window frames and flanked rings to attach nacelle (barstools) to aircraft engines. The present invention provides multidirely enhanced preforms woven with improved resistance to composite structures that are axissimetric in nature as well as non -axissimetric. The invention is a pre -form used to reinforce a composite (matching) structure that includes a part of intertwined contour fabric, Bi -axially woven,Triaxially woven or part of bias fabric and /or a part of bias entertained fabric and a method of doing the same. The pre -form may optionally include a three -dimensional woven part. The combination of different tissue forms allows the pre -form to be produced without cutting and suturing the individual folds. The elimination of these cuts and sutures improves the resistance and performance of the resulting structure.