Design of maximum permeability material structures

James K. Guest, Jean H. Prévost

Research output: Contribution to journalArticlepeer-review

134 Scopus citations

Abstract

This paper extends recent advances in the topology optimization of fluid flows to the design of periodic, porous material microstructures. Operating in a characteristic base cell of the material, the goal is to determine the layout of solid and fluid phases that will yield maximum permeability and prescribed flow symmetries in the bulk material. Darcy's law governs flow through the macroscopic material while Stokes equations govern flow through the microscopic channels. Permeability is computed via numerical homogenization of the base cell using finite elements. Solutions to the proposed inverse homogenization design problem feature simply connected pore spaces that closely resemble minimal surfaces, such as the triply periodic Schwartz P minimal surface for 3 - d isotropic, maximum permeability materials.

Original languageEnglish (US)
Pages (from-to)1006-1017
Number of pages12
JournalComputer Methods in Applied Mechanics and Engineering
Volume196
Issue number4-6
DOIs
StatePublished - Jan 1 2007

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

Keywords

  • Inverse homogenization
  • Porous materials
  • Topology optimization

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