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Thermomechanical postbuckling of multilayered composite panels with cutoutsThe results of a study of the detailed thermomechanical postbuckling response characteristics of flat unstiffened composite panels with central circular cutouts are presented. The panels are subjected to combined temperature changes and applied edge loading (or edge displacements). The analysis is based on a first-order shear deformation plate theory. A mixed formulation is used with the fundamental unknowns consisting of the generalized displacements and the stress resultants of the plate. The postbuckling displacements, transverse shear stresses, transverse shear strain energy density, and their sensitivity coefficients are evaluated. The sensitivity coefficients measure the sensitivity of the post-buckling response to variations in the different lamination and material parameters of the panel. Numerical results are presented showing the effects of the variations in the hole diameter, laminate stacking sequence, fiber orientation, and aspect ratio of the panel on the thermomechanical postbuckling response and its sensitivity to changes in panel parameters.
Document ID
19950019847
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Noor, Ahmed K.
(Virginia Univ. Hampton, VA., United States)
Peters, Jeanne M.
(Virginia Univ. Hampton, VA., United States)
Starnes, James H., Jr.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
April 1, 1995
Publication Information
Publication: Virginia Univ., Center for Computational Structures Technology
Subject Category
Structural Mechanics
Accession Number
95N26267
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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