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Article Dans Une Revue Engineering Optimization Année : 2018

Optimization of structures under buckling constraints using frame elements

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Résumé

tructural optimization is of increasing interest in a wide variety of application fields. In this article, structural optimization under stress and buckling constraints is investigated. A structure comprised of a set of frame elements is considered. The aim is to obtain the minimal mass structure, by optimizing the number of frame elements and their cross sectional dimensions. A formulation as a mixed-integer nonlinear optimization problem with a tailored objective function is introduced. This cost function is a combination of the structural mass and the sum of the second moments of inertia of each structural element. Moreover, a new algorithm, tailored to the considered problem, is proposed. Numerical results show that the proposed approach provides interesting structural mass savings.
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Dates et versions

hal-01756943 , version 1 (03-04-2018)

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Florian Mitjana, Sonia Cafieri, Florian Bugarin, Christian Gogu, Fabien Castanié. Optimization of structures under buckling constraints using frame elements. Engineering Optimization, 2018, 51 (1), pp.140-159. ⟨10.1080/0305215X.2018.1444162⟩. ⟨hal-01756943⟩
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