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Postbuckling of Non-Linear Viscoelastic Imperfect Laminated Plates Part II: Structural Analysis

David Touati
Organization: Israel Military Industries
Department: Central Laboratory Division
Gabriel Cederbaum
Organization: University of British Columbia, Vancouver, BC, Canada
Journal / Anthology

Composite Structures
Year: 1998
Volume: 42
Page range: 43-51

The postbuckling behavior of geometrically imperfect laminated plates with non-linear viscoelastic materials is investigated. The relaxation properties for the various Schapery single-integrals of a unidirectional layer are derived from the stress-relaxation curves obtained in part I/ The non-linear plate (von Karman) equations are derived symbolically using Mathematica in the form of a system of first-order non-linear differential equations. A numerical example of graphite/epoxy cross-ply laminates is presented and discussed.

*Engineering > Mechanical and Structural Engineering

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