초록 ▼

A hybrid composite structure is formed from layers of gore strips (12), polymeric matrix composite (71) comprising a resin impregnated slit tape or tow, and a central honeycomb layer formed from a plurality of rectangular sections (72). The first two steps include forming a plurality of the gore str

A hybrid composite structure is formed from layers of gore strips (12), polymeric matrix composite (71) comprising a resin impregnated slit tape or tow, and a central honeycomb layer formed from a plurality of rectangular sections (72). The first two steps include forming a plurality of the gore strips and providing a mold, or lay-up mandrel (10). Thereafter, a first set of gore strips is applied to the lay-up mandrel to form a first gore strip layer. Subsequently, the composite material in form of resin impregnated slit tape or tow is applied to the first gore strip layer to form a first composite material layer. Next, a second set of gore strips is applied to the first layer of polymeric matrix composite, opposite the first gore strip layer, to form at least one other gore strip layer. This creates a first sandwich structure having gore strips as the first and last layers of the structure. Thereafter, the layer of honeycomb material is applied to the last layer of the first sandwich structure. Finally, a second sandwich structure, substantially identical to the first sandwich structure, is formed on the side of the honeycomb layer opposite the first sandwich structure. Thus, a hybrid composite structure is formed having first and second sandwich structures separated by a central honeycomb layer.

대표청구항 ▼

A method for forming a hybrid composite structure on a lay-up mandrel, comprising the steps of: (a) forming a plurality of metal foil gore strips; (b) applying a first plurality of the gore strips in a first direction on the lay-up mandrel to form a first layer of gore strips having seams therebetwe

A method for forming a hybrid composite structure on a lay-up mandrel, comprising the steps of: (a) forming a plurality of metal foil gore strips; (b) applying a first plurality of the gore strips in a first direction on the lay-up mandrel to form a first layer of gore strips having seams therebetween; (c) applying strips of a composite material over the first layer of gore strips to form a first layer of composite material on said mandrel, said composite material strips being applied in a direction transverse to the first direction; and (d) applying a second quantity of the gore strips in the first direction over the first layer of composite material, opposite the first layer of gore strips, to form at least a second layer of gore strips to create a skin structure having gore strips as first and last layers of the skin structure.