Robert William Biggs Jr.
Engineering at Nottoway Dr, Pearl River, LA
License number
Louisiana EI.0013777
Issued Date
Jan 1, 1900
Expiration Date
Sep 30, 2001
Category
Civil Engineer
Address
Address
319 Nottoway Dr, Pearl River, LA 70452
Professional information
High Performance Structural Laminate Composite Material For Use To 1000.Degree. F And Above, Apparatus For And Method Of Manufacturing Same, And Articles Made With Same
US Patent:
6013361, Jan 11, 2000
Filed:
Oct 31, 1995
Appl. No.:
8/550896
Inventors:
Ellis C. Seal - Bay St. Louis MS
Robert William Biggs - Pearl River LA
Venu Prasad Bodepudi - New Orleans LA
John A. Cranston - Huntsville AL
Robert William Biggs - Pearl River LA
Venu Prasad Bodepudi - New Orleans LA
John A. Cranston - Huntsville AL
Assignee:
Lockheed Martin Corporation - Bethesda MD
International Classification:
B32B 518
US Classification:
4282974
Abstract:
A novel materials technology has been developed and demonstrated for providing a high modulus composite material for use to 1000. degree. F. and above. This material can be produced at 5-20% of the cost of refractory materials, and has higher structural properties. This technology successfully resolves the problem of "thermal shock" or "ply lift," which limits traditional high temperature laminates (such as graphite/polyimide and graphite/phenolic) to temperatures of 550-650. degree. F. in thicker (0. 25" and above) laminates. The technology disclosed herein is an enabling technology for the nose for the External Tank (ET) of the Space Shuttle, and has been shown to be capable of withstanding the severe environments encountered by the nose cone through wind tunnel testing, high temperature subcomponent testing, and full scale structural, dynamic, acoustic, and damage tolerance testing.