Concurrent topological design of composite structures and materials containing multiple phases of distinct Poisson's ratios

Long, K, Yuan, P, Xu, S and Xie, M 2018, 'Concurrent topological design of composite structures and materials containing multiple phases of distinct Poisson's ratios', Engineering Optimization, vol. 50, no. 4, pp. 599-614.


Document type: Journal Article
Collection: Journal Articles

Title Concurrent topological design of composite structures and materials containing multiple phases of distinct Poisson's ratios
Author(s) Long, K
Yuan, P
Xu, S
Xie, M
Year 2018
Journal name Engineering Optimization
Volume number 50
Issue number 4
Start page 599
End page 614
Total pages 16
Publisher Taylor and Francis
Abstract Most studies on composites assume that the constituent phases have different values of stiffness. Little attention has been paid to the effect of constituent phases having distinct Poissons ratios. This research focuses on a concurrent optimization method for simultaneously designing composite structures and materials with distinct Poissons ratios. The proposed method aims to minimize the mean compliance of the macrostructure with a given mass of base materials. In contrast to the traditional interpolation of the stiffness matrix through numerical results, an interpolation scheme of the Youngs modulus and Poissons ratio using different parameters is adopted. The numerical results demonstrate that the Poisson effect plays a key role in reducing the mean compliance of the final design. An important contribution of the present study is that the proposed concurrent optimization method can automatically distribute base materials with distinct Poissons ratios between the macrostructural and microstructural levels under a single constraint of the total mass.
Subject Structural Engineering
Keyword(s) concurrent design
homogenization
negative Poisson's ratio
Poisson effect
topology optimization
DOI - identifier 10.1080/0305215X.2017.1337757
Copyright notice © 2017 Informa UK Limited, trading as Taylor & Francis Group.
ISSN 0305-215X
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