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Optimum design using VICONOPT, a buckling and strength constraint program for prismatic assemblies of anisotropic platesA computer program for obtaining the optimum (least mass) dimensions of the kind of prismatic assemblies of laminated, composite plates which occur in advanced aerospace construction is described. Rigorous buckling analysis (derived from exact member theory) and a tailored design procedure are used to produce designs which satisfy buckling and material strength constraints and configurational requirements. Analysis is two to three orders of magnitude quicker than FEM, keeps track of all the governing modes of failure and is efficiently adapted to give sensitivities and to maintain feasibility. Tailoring encourages convergence in fewer sizing cycles than competing programs and permits start designs which are a long way from feasible and/or optimum. Comparisons with its predecessor, PASCO, show that the program is more likely to produce an optimum, will do so more quickly in some cases, and remains accurate for a wider range of problems.
Document ID
19920063733
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Butler, R.
(Bath, University United Kingdom)
Williams, F. W.
(Cardiff, University College, United Kingdom)
Date Acquired
August 15, 2013
Publication Date
May 17, 1992
Publication Information
Publication: Computers & Structures
Volume: 43
Issue: 4, Ma
ISSN: 0045-7949
Subject Category
Structural Mechanics
Accession Number
92A46357
Distribution Limits
Public
Copyright
Other

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