FIELD: process engineering.
SUBSTANCE: invention relates to reinforced composites, particularly, to lined preset-shape preforms with bidirectional reinforcement for composite structures. Lined preforms can be axially symmetric or asymmetric. Preform comprises parts of cloth produced by contour braiding, biaxial braiding, triaxial braiding, a part of fabric cut in skew line and/or a part of fabric produced by polar braiding. Preform can additionally comprise a part of fabric produced by 3D braining.
EFFECT: higher strength, better working properties of final structure.
37 cl, 13 dwg
