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Title: Multiobjective optimisation of laminated I-beams for maximum crippling, buckling and postbuckling strength
Authors: Walker, Mark 
Issue Date: 1998
Publisher: Elsevier
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.
Originally published in: Composites Part B: Engineering Vol. 29, No. 3, 1998.
Rights: The electronic version of the article published in Composites Part B: Engineering 1998, 29(3): 263-270 © 1998 copyright Elsevier. Composites Part B: Engineering available online at:
Appears in Collections:Research Publications (Engineering and Built Environment)

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