Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 38, Issue 6, Pages 583-597Publisher
SPRINGER
DOI: 10.1007/s00158-008-0308-6
Keywords
Topology optimization; Material design; Inverse homogenization; Negative stiffness materials
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An application of topology optimization to design viscoelastic composite materials with elastic moduli that soften with frequency is presented. The material is a two-phase composite whose first constituent is isotropic and viscoelastic while the other is an orthotropic material with negative stiffness but stable. A concept for this material based on a lumped parameter model is used. The performance of the topology optimization approach in this context is illustrated using three examples.
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