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Stacking Sequence Optimization of Multilayer Composite Materials
Author(s) -
Loske Simon,
Barthold FranzJoseph
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800407
Subject(s) - lamination , stacking , stiffness , materials science , sequential quadratic programming , composite laminates , finite element method , composite number , structural engineering , optimization problem , composite material , computer science , mathematical optimization , quadratic programming , algorithm , engineering , mathematics , physics , nuclear magnetic resonance , layer (electronics)
The application of composite materials in various types of devices has increased steadily in the past decades. Hence, it is worth investigating into the structural behavior of these materials. The optimization of stacking sequences in multilayer composite materials opens a large field of improvements in industrial applications of composite materials. The center of investigation is set on fiber reinforced laminate plies, which are examined in the case of linear anisotropic theory of elasticity and applied to an isoparametric shell element formulation. For these mechanical systems, the modeling approach using lamination parameters is consulted. Under application of these lamination parameters, an optimization problem is formulated which uses an optimization procedure based on the SQP algorithm that optimizes the material properties of laminates to maximize the stiffness of the considered structure. The material properties obtained by the optimization of the lamination parameters are converted into possible stacking sequences for laminates by using simplified approaches.