NDLI: Stacking-sequence optimization for buckling of laminated plates by integer programming

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Stacking-sequence optimization for buckling of laminated plates by integer programming

Content Provider	NASA Technical Reports Server (NTRS)
Author	Haftka, Raphael T. Walsh, Joanne L.
Copyright Year	1991
Description	Integer-programming formulations for the design of symmetric and balanced laminated plates under biaxial compression are presented. Both maximization of buckling load for a given total thickness and the minimization of total thickness subject to a buckling constraint are formulated. The design variables that define the stacking sequence of the laminate are zero-one integers. It is shown that the formulation results in a linear optimization problem that can be solved on readily available software. This is in contrast to the continuous case, where the design variables are the thicknesses of layers with specified ply orientations, and the optimization problem is nonlinear. Constraints on the stacking sequence such as a limit on the number of contiguous plies of the same orientation and limits on in-plane stiffnesses are easily accommodated. Examples are presented for graphite-epoxy plates under uniaxial and biaxial compression using a commercial software package based on the branch-and-bound algorithm.
File Size	596128
Page Count	12
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910012267
Archival Resource Key	ark:/13960/t2z36qp5d
Language	English
Publisher Date	1991-01-01
Access Restriction	Open
Subject Keyword	Structural Mechanics Integers Linear Programming Laminates Design Analysis Optimization Thickness Algorithms Plates Structural Members Nonlinearity Graphite-epoxy Composites Applications Programs Computers Ply Orientation Buckling Loads Forces Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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