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Nonlinear analysis of structuresThe development of nonlinear analysis techniques within the framework of the finite-element method is reported. Although the emphasis is concerned with those nonlinearities associated with material behavior, a general treatment of geometric nonlinearity, alone or in combination with plasticity is included, and applications presented for a class of problems categorized as axisymmetric shells of revolution. The scope of the nonlinear analysis capabilities includes: (1) a membrane stress analysis, (2) bending and membrane stress analysis, (3) analysis of thick and thin axisymmetric bodies of revolution, (4) a general three dimensional analysis, and (5) analysis of laminated composites. Applications of the methods are made to a number of sample structures. Correlation with available analytic or experimental data range from good to excellent.
Document ID
19740012450
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Armen, H., Jr. (Grumman Aerospace Corp. Bethpage, NY, United States)
Levine, H. (Grumman Aerospace Corp. Bethpage, NY, United States)
Pifko, A. (Grumman Aerospace Corp. Bethpage, NY, United States)
Levy, A. (Grumman Aerospace Corp. Bethpage, NY, United States)
Date Acquired
September 3, 2013
Publication Date
March 1, 1974
Publication Information
Publisher: NASA
Subject Category
Structural Mechanics
Report/Patent Number
NASA-CR-2351
RE-454
Accession Number
74N20563
Funding Number(s)
PROJECT: RTOP 760-60-01-01
CONTRACT_GRANT: NAS1-10087
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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