Composite element having a variable density core

Details Composite element having a variable density core Composite element having a variable density core

1990-08-31

1992-02-11

Van Balen, William J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

4283105, 4283193, B32B 702

Patent

active

050875116

ABSTRACT:
A composite element having a core and two face sheets attached to respective faces of the core. The core density varies along its length and, in turn, varies the element strength along its length. The core can include either a ceramic material or a urethane foam. The face sheet can include metals, a fiber reinforced polymeric material or a polymer matrix composite material. The element can take the shape of a beam, plate or shell and can be used in high pressure and high temperature applications. The composite element is particularly suited for aerospace applications.

REFERENCES:
patent: 3925526 (1975-12-01), Haas
patent: 4463049 (1984-07-01), Kracke
patent: 4584230 (1986-04-01), Saegusa

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