Finite element prediction of effective elastic properties of interpenetrating phase composites with architectured 3D sheet reinforcements

Ahmed S. Dalaq, Diab W. Abueidda, Rashid K. Abu Al-Rub, Iwona M. Jasiuk

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, novel triply periodic minimal surfaces (TPMS) are converted into three-dimensional solid-sheet networks and used as reinforcements within a matrix material creating interpenetrating phase composites (IPC). Schwarz P (P), Schwarz D (D), Schwarz CLP (CLP), Schoen I-WP (IWP), Neovius C(P) (Neovius), Schoen G (Gyroid), Fischer and Koch S (S) TPMS architectures are investigated. The IPCs with the TPMS architectures are modeled using the finite element method, and their effective elastic properties (uniaxial, shear, and bulk moduli, anisotropy index, Poisson's ratio) are evaluated and compared with those of traditional composites (particulate and fibrous). The effects of the TPMS architecture, its volume fraction, and contrast in elastic properties between the two phases in the IPC are studied. Foam (cellular solid) is obtained if one of the phases in the proposed IPC is removed and its elastic properties are also estimated. It is shown that the TPMS architecture significantly affects effective elastic moduli when the contrast is high. The IWP-type IPC and foam give largest uniaxial and bulk moduli.

Original languageEnglish (US)
Pages (from-to)169-182
Number of pages14
JournalInternational Journal of Solids and Structures
Volume83
DOIs
StatePublished - Apr 1 2016

Keywords

  • Elastic properties
  • Finite element analysis
  • Foams
  • Interpenetrating phase composites
  • Triply periodic minimum surfaces

ASJC Scopus subject areas

  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

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