Closed composite sections with bonded scarf joints

Details Closed composite sections with bonded scarf joints Closed composite sections with bonded scarf joints

1991-08-16

1994-01-25

Thomas, Alexander S.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 369, 428 3691, 428 57, 428 60, 138155, B32B 108, B32B 306

Patent

active

052814548

ABSTRACT:
A novel joint for connecting a closed composite adherend utilizes complementary scarf surfaces on the adherends and then bonds the adherends together. The angle of the scarf is determined by the materials used and the expected loads. Preferably, constant stiffness is achieved through the joint. In alternative embodiments, lap joint areas are included to create localized stress free zones. A method of creating the scarf surfaces utilizes a wrapping technique in which the edges of a lamina of composite material are prepared so as to provide a desired edge termination which permits each layer to be bonded to the adjacent adherend.

REFERENCES:
patent: 3686061 (1972-08-01), Brown et al.

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