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Optimization of inelastic cylindrical shells with internal supports

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Abstract

A non-linear programming method is developed for optimization of inelastic cylindrical shells with internal ring supports. The shells under consideration are subjected to internal pressure loading and axial tension. The material of shells is a composite which is considered as an anisotropic inelastic material obeying the yield condition suggested by Lance and Robinson. Taking geometrical non/linearity of the structure into account optimal locations of internal ring supports are determined so that the cost function attains its minimum value. A particular problem of minimization of the mean deflection of the shell with weakened singular cross sections is treated in a greater detail.

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Authors and Affiliations

  1. Institute of Mathematics, Tartu University, 2 Liivi str, 50409, Tartu, Estonia

    Jaan Lellep & Annika Paltsepp

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  1. Jaan Lellep
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  2. Annika Paltsepp
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Correspondence to Jaan Lellep.

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Lellep, J., Paltsepp, A. Optimization of inelastic cylindrical shells with internal supports. Struct Multidisc Optim 41, 841–852 (2010). https://doi.org/10.1007/s00158-009-0465-2

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  • DOI: https://doi.org/10.1007/s00158-009-0465-2

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