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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
engineering
Optimization of laminated composites subject to uncertain buckling loads
Composite Structures, Volume 62, No. 3-4, Year 2003
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Description
Optimal design of composite laminates under buckling load uncertainty is presented. The laminates are subjected to biaxial compressive loads and the buckling load is maximized under worst case in-plane loading which is computed using an anti-optimization approach. The magnitudes of the in-plane loads are not known a priori resulting in load uncertainty subject to the only constraint that the loads belong to a given uncertainty domain. Results are given for continuous and discrete fibre orientations which constitute the optimization problem coupled to load anti-optimization problem leading to a nested solution method. It is observed that the stacking sequence of a laminate designed for a deterministic load case only differs considerably from that of a robust laminate designed taking load uncertainties into account. Consequently the buckling load carried by a deterministic design is considerably less than the one carried by a robust design when both are subjected to uncertain loads. © 2003 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Adali, Sarp
South Africa, Durban
University of Kwazulu-natal
Lene, F.
France, Paris
Sorbonne Université
Duvaut, G.
France, Paris
Sorbonne Université
Chiaruttini, V.
France, Gif-sur-yvette
École Normale Supérieure Paris-saclay
Statistics
Citations: 70
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1016/j.compstruct.2003.09.024
ISSN:
02638223