The Buckling Optimization on Composite Beam with Hat Stiffener
2014 ◽
Vol 953-954
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pp. 1649-1652
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Keyword(s):
The paper carried out the buckling optimization on composite beam with hat stiffener by taking ply angle as optimal variables and the critical buckling load (CBL) as the optimal objective. Firstly, the paper established the mathematical optimization model, and then carried out sensitivity analysis of ply angle through Optimal Latin Hypercube Design, finally optimized the design of the layer using Genetic Algorithm. The results show that the CBL of stiffened beam with the optimized ply angle is increased by 64% than that with initial ply angle; CBL can be increased by changing the ply angle, the sheet should adopt the 0° or 90° layer, while the surface and center of stiffener should adopt ±45° layer and the rest should be 0° or 90°.
1991 ◽
Vol 15
(11-12)
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pp. 652-656
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2013 ◽
Vol 807-809
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pp. 2460-2469