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Buckling analysis for structural sections and stiffened plates reinforced with laminated composites.A classical buckling analysis is developed for stiffened, flat plates composed of a series of linked flat plate and beam elements. Plates are idealized as multilayered orthotropic elements; structural beads and lips are idealized as beams. The loaded edges of the stiffened plate are simply supported and the conditions at the unloaded edges can be prescribed arbitrarily. The plate and beam elements are matched along their common junctions for displacement continuity and force equilibrium in an exact manner. Offsets between elements are considered in the analysis. Buckling under uniaxial compressive load for plates, sections and stiffened plates is investigated. Buckling loads are found as the lowest of all possible general and local failure modes and the mode shape is used to determine whether buckling is a local or general instability. Numerical correlations with existing analysis and test data for plates, sections and stiffened plates including boron-reinforced structures are discussed. In general, correlations are reasonably good.
Document ID
19720036066
Document Type
Reprint (Version printed in journal)
Authors
Viswanathan, A. V.
Soong, T.-C.
Miller, R. E., Jr. (Boeing Co. Seattle, Wash., United States)
Date Acquired
August 6, 2013
Publication Date
March 1, 1972
Publication Information
Publication: International Journal of Solids and Structures
Volume: 8
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NAS1-8858
Distribution Limits
Public
Copyright
Other