Granular reinforced materials for morphing structures

David M. Phillips, Fazeel J. Khan, Gabriel S. Jacobson, Jeffrey W. Baur

Research output: Contribution to conferencePaperpeer-review

Abstract

The variable flexural stiffness and strength of granular reinforced composite sections were investigated as a function of applied confinement pressure. The impact of particle size and shape on the resulting mechanical properties was examined using different sizes of hollow glass bubbles and dodecahedral almandite powder. The result is a reversible, self-healing locking mechanism that exhibits a fifty-fold increase in flexural modulus and a ten-fold increase in flexural strength with the simple application of vacuum to confine the granular media. In comparison to thermally triggered shape memory polymers, this approach has the potential to avoid the complications caused by low thermal conductivity and triggering complications due low and high temperature environments. Since the granular media can be readily transported between chambers, structures that adaptively reinforce themselves in response to changing loads can be envisioned.

Original languageEnglish (US)
StatePublished - 2007
Externally publishedYes
Event39th International SAMPE Technical Conference - From Art to Science: Advancing Materials and Process Engineering - Cincinnati, OH, United States
Duration: Oct 29 2007Nov 1 2007

Conference

Conference39th International SAMPE Technical Conference - From Art to Science: Advancing Materials and Process Engineering
Country/TerritoryUnited States
CityCincinnati, OH
Period10/29/0711/1/07

Keywords

  • Hybrid materials/structures
  • Microspheres/microballoons
  • Smart materials/smart structures

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Granular reinforced materials for morphing structures'. Together they form a unique fingerprint.

Cite this