Fiber-reinforced composite structures, and methods of making sam

Details Fiber-reinforced composite structures, and methods of making sam Fiber-reinforced composite structures, and methods of making sam

1992-02-27

1994-09-13

Loney, Donald J.

Stock material or miscellaneous articles

Article of intermediate shape

428113, 428166, 428167, 428174, 428178, 428188, 428225, 428227, 428257, B29B 700, B32B 328

Patent

active

053467744

ABSTRACT:
Fiber reinforced composite structures and preforms for making same, and methods for making such structures and such preforms, are disclosed. In the preforms, at least two constituent elements are woven from yarns made from material of desired characteristics and the elements are joined at a juncture therebetween by fibrous material that is common to and integral with said elements. At least one of the elements includes at least one internal pocket that is adapted to contain a reinforcement member that produces improved shear stiffness and/or shear strength in the preform when it is matrix infiltrated. In preferred embodiments, three such elements are oriented at right angles to each other, with reinforcement pockets included in two of the three elements. Preforms so made may then be infiltrated with matrix material.

REFERENCES:
patent: 1594261 (1926-07-01), Herschmann
patent: 2019233 (1935-10-01), Nicol
patent: 4542055 (1985-09-01), Fitzsimmons

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