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 optimizationMaterial designInverse homogenizationNegative stiffness materials

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringMichigan State UniversityEast LansingUSA