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Structural and Multidisciplinary Optimization

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01.02.2018 | RESEARCH PAPER

A lagrange parametrization for the design of variable stiffness laminates

verfasst von: Hugo Borges de Quadros, José Antonio Hernandes

Erschienen in: Structural and Multidisciplinary Optimization | Ausgabe 1/2018

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Abstract

A Lagrange parameterization of lamination parameters which are used for optimization of variable stiffness laminates is presented. The advantages of the approach are: a) the design variables become independent of the finite element mesh and, b) the smoothness of the solution is inherently guaranteed. Due to independency of design variables of the finite element mesh, the reduction in the number of design variables is drastic, once variable stiffness laminates usually demand a fine mesh. The lamination parameters formulation allows a more precise and concise approach to laminate design, removing difficulties related to fiber direction and stacking sequence, increasing the chances to find a global optimal solution. In this paper, the Lagrange parameterization is used for the maximization of the buckling load of a variable stiffness composite plate.

Vorheriger Artikel Minimization of sound radiation in fully coupled structural-acoustic systems using FEM-BEM based topology optimization

Nächster Artikel The equivalent static loads method for structural optimization does not in general generate optimal designs

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Titel: A lagrange parametrization for the design of variable stiffness laminates
verfasst von: Hugo Borges de Quadros
José Antonio Hernandes
Publikationsdatum: 01.02.2018
Verlag: Springer Berlin Heidelberg
Erschienen in: Structural and Multidisciplinary Optimization / Ausgabe 1/2018
Print ISSN: 1615-147X
Elektronische ISSN: 1615-1488
DOI: https://doi.org/10.1007/s00158-017-1882-2

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