Discrete Material and Thickness Optimization of laminated composite structures including failure criteria

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Abstract

This work extends the Discrete Material and Thickness Optimization approach to structural optimization problems where strength considerations in the form of failure criteria are taken into account for laminated composite structures. It takes offset in the density approaches applied for stress constrained topology optimization of single-material problems and develops formulations for multi-material topology optimization problems applied for laminated composite structures. The method
can be applied for both stress- and strain-based failure criteria. The large number of local constraints is reduced by the use of aggregate functions, and the developed approach is demonstrated for optimization problems involving both constant and
varying thickness laminated composites.
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Detaljer

This work extends the Discrete Material and Thickness Optimization approach to structural optimization problems where strength considerations in the form of failure criteria are taken into account for laminated composite structures. It takes offset in the density approaches applied for stress constrained topology optimization of single-material problems and develops formulations for multi-material topology optimization problems applied for laminated composite structures. The method
can be applied for both stress- and strain-based failure criteria. The large number of local constraints is reduced by the use of aggregate functions, and the developed approach is demonstrated for optimization problems involving both constant and
varying thickness laminated composites.
OriginalsprogDansk
TidsskriftStructural and Multidisciplinary Optimization
Volume/Bind57
Tidsskriftsnummer6
Sider (fra-til)1-19
Antal sider19
ISSN1615-147X
DOI
StatusUdgivet - 2018
PublikationsartForskning
Peer reviewJa

    Forskningsområder

  • Discrete material optimization; Discrete material and thickness optimization; Failure criteria; Laminated composites

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