Structural and Multidisciplinary Optimization

, Volume 38, Issue 6, pp 583–597

Viscoelastic material design with negative stiffness components using topology optimization

Research Paper

DOI: 10.1007/s00158-008-0308-6

Cite this article as:
Prasad, J. & Diaz, A.R. Struct Multidisc Optim (2009) 38: 583. doi:10.1007/s00158-008-0308-6

Abstract

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.

Keywords

Topology optimization Material design Inverse homogenization Negative stiffness materials 

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringMichigan State UniversityEast LansingUSA

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