Computational modeling of porous shape memory alloys

M. Panico, L. C. Brinson*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

In this study the mesoscopic behavior of porous shape memory alloys has been simulated with particular attention to the mechanical response under cyclic loading conditions. A recently developed constitutive law, accounting for full martensite reorientation as well as phase transformation, was implemented into the commercial finite element code ABAQUS. Due to stress concentrations in a porous microstructure, the constitutive law was enhanced to account for the development of permanent inelasticity in the shape memory matrix. With this simulation method, the complex interaction between porosity, local phase transformation and macroscale response has been evaluated. The results have implications for use of porous SMAs in biomedical and structural applications.

Original languageEnglish (US)
Pages (from-to)5613-5626
Number of pages14
JournalInternational Journal of Solids and Structures
Volume45
Issue number21
DOIs
StatePublished - Oct 15 2008

Keywords

  • Cyclic loading
  • Phase transformation
  • Porous materials
  • Shape memory alloys
  • Simulations

ASJC Scopus subject areas

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

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