초록 ▼

I improve the impact shock resistance of bonds between composite elements by including Z-pin reinforcement. I prepare stubbled composite structure by using peel plys over the appropriate surface of the composite during pin insertion using conventional processes. I then use the stubbled composite str

I improve the impact shock resistance of bonds between composite elements by including Z-pin reinforcement. I prepare stubbled composite structure by using peel plys over the appropriate surface of the composite during pin insertion using conventional processes. I then use the stubbled composite structure with padups, as necessary, to produce the Z-pin reinforced joint or bond between composite elements using any of adhesive bonding, cocuring, or thermoplastic welding.

대표청구항 ▼

[ I claim:] [1.] A composite assembly having improved impact shock resistance along a bond line between at least two composite structural elements, made by the method comprising the steps of:(a) inserting Z-pin reinforcement in the form of a plurality of pins extending into a surface of a first comp

[ I claim:] [1.] A composite assembly having improved impact shock resistance along a bond line between at least two composite structural elements, made by the method comprising the steps of:(a) inserting Z-pin reinforcement in the form of a plurality of pins extending into a surface of a first composite element in a predetermined orientation to create stubble extending out of the first composite element along a bond line region of the first composite element and the stubble contacts the other composite element;(b) assembling the first composite element with the stubble and at least one other composite element so that the bond line region that includes the stubble interfaces with a faying surface of the other composite element; and(c) bonding the elements directly together along the bond line with a substantially continuous layer of resin and the Z-pin reinforcement to connect the elements with a joint having Z-pin mechanical reinforcement sufficient to increase the impact shock resistance of the joint, wherein the bonding includes inserting the Z-pin reinforcement in the first composite element into the other composite element to connect the elements.