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Multiobjective optimisation of laminated I-beams for maximum crippling, buckling and postbuckling strength

โœ Scribed by Mark Walker

Book ID
104404346
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
574 KB
Volume
29
Category
Article
ISSN
1359-8368

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โœฆ Synopsis

The present study deals with the optimal design of uniaxially loaded laminated I-beams for a maximum combination of crippling and buckling load, in the first instance, and a maximum combination of buckling load and postbuckling stiffness, in the second instance. The method of solution involves defining a design index comprising a weighted average of the objective functions and identifying candidate configurations which have to be optimised and compared to determine the best stacking sequence. This multiobjective approach leads to improved crippling, buckling and postbuckling strength. The multiobjective results are compared to single objective results, and the effect of various problem parameters on the optimal designs are numerically studied.

๐Ÿ“œ SIMILAR VOLUMES

Multiobjective design of laminated cylin
Multiobjective design of laminated cylindrical shells for maximum torsional and axial buckling loads
โœ M. Walker; T. Reiss; S. Adali ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 470 KB

The multiobjective design of a symmetrically laminated shell is obtained with the objectives defined as the maximization of the axial and torsional buckling loads. The ply angle is taken as the optimizing variable and the performance index is formulated as the weighted sum of individual objectives i