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US 5,850,722 AGranted
Lightweight superplastically formed, diffusion bonded panel structure and process of manufacture
AssigneeMcDonnell Douglas Corporation
InventorKen K. Yasui
Life of this patent
Estimating the term…
Abstract
A method to increase the damage resistance of a diffusion bonded panel that includes embedding reinforcing members in the panel are bonding the reinforcing members so structural redundancy occurs adjacent the bonds and the structures constructed thereby. The reinforcing members stop cracking of the panel there across by taking on the load at the end of the crack so crack growth is retarded.
Claims21
A superplastically formed, diffusion bonded panel having:
- a first face sheet;
- a second face sheet separated from said first face sheet;
- at least one first separator web positioned generally perpendicular to said first and second face sheets and connected to said face sheets to maintain the separation thereof, each said first separator web having:
- first and second sides;
- and
- a centerline bulge there along generally centered between said first and second face sheets and extending from said first and second sides;
- and
- at least one reinforcement member connected in the panel having:
- at least portions thereof that are not bonded thereto, said at least one reinforcement member being for retarding the growth of a crack growing transverse thereto.
6 more elements
A superplastically formed, diffusion bonded panel having:
- a first face sheet;
- a second face sheet separated from said first face sheet;
- at least one first separator web positioned between said first and second face sheets and integrally connecting said face sheets while maintaining the separation thereof, said first separator web having:
- first and second sides;
- and
- at least one reinforcement member embedded in the panel but not bonded thereto, said at least one reinforcement member having a cross-section that varies in a lengthwise extending direction so that said at least one reinforcement member is mechanically attached to the panel said at least one reinforcement member being for retarding the growth of a crack growing transverse thereto.
3 more elements
Dependencies are inferred from the claim text.