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Graphite/epoxy orthogrid panel fabricationThe structural concept considered for a spacecraft body structure is a grid stiffened skin with a skin laminate configuration and the stiffener grid geometry selected to best suit the design requirements. The orthogrid panel developed weighs 0.55 lb/sq ft and resisted an ultimate in-plane shear load of 545 lbf/in. The basic concept of a grid stiffener composite panel is that a relatively thin skin is reinforced with a gridwork of stiffeners so that the overall panel can resist design loads without becoming structurally unstable or being overstressed. The main feature of the orthogrid panel design is that it provides the potential for low cost structural panels when advanced to the production phase. The most innovative part of the fabrication method is the foam/fiberglass stiffener web grid billet fabrication and machining to size.
Document ID
19790040079
Document Type
Conference Proceedings
Authors
Lager, J. R. (Martin Marietta Aerospace Denver, Colo., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
MECHANICAL ENGINEERING
Meeting Information
Materials synergisms; Tenth National Technical Conference(Kiamesha Lake, NY)
Funding Number(s)
CONTRACT_GRANT: NAS8-31854
Distribution Limits
Public
Copyright
Other