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Thickness and orientational design for a maximum stiff membraneRecent results from sensitivity analysis for strain energy with anisotropic elasticity are applied to thickness and orientational design of laminated membranes. Primarily, the first order gradients of the total elastic energy are used in an optimality criteria based method. This traditional method is shown to give slow convergence with respect to design parameters, although the convergence of strain energy is very good. To get a deeper insight into this rather general characteristic, second order derivatives are included and it is shown how they can be obtained by first order sensitivity analysis. Examples of only thickness design, only orientational design, and combined thickness--orientational design are presented.
Document ID
19940004747
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Pedersen, Pauli
(Technical Univ. of Denmark Lyngby, Denmark)
Date Acquired
August 16, 2013
Publication Date
January 1, 1990
Publication Information
Publication: NASA. Langley Research Center, The Third Air Force(NASA Symposium on Recent Advances in Multidisciplinary Analysis and Optimization
Subject Category
Structural Mechanics
Accession Number
94N71502
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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