3D coupled thermo-mechanical phase-field modeling of shape memory alloy dynamics via isogeometric analysis

R. P. Dhote, H. Gomez, R. N.V. Melnik, J. Zu

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

The paper focuses on numerical simulation of the 3D phase-field (PF) equations for modeling cubic-to-tetragonal martensitic transformations in shape memory alloys (SMAs), their complex microstructures and thermo-mechanical behavior. The straightforward solution to the fourth-order diffuse interface 3D PF equations, based on the Landau-Ginzburg potential, is numerically solved using an isogeometric analysis. We present microstructure evolution in different geometries of SMA nanostructures under temperature-induced phase transformations to illustrate the geometrical flexibility, accuracy and robustness of our approach. The simulations successfully capture the dynamic thermo-mechanical behavior of SMAs observed experimentally.

Original languageEnglish
Pages (from-to)48-58
Number of pages11
JournalComputers and Structures
Volume154
DOIs
StatePublished - 1 Jul 2015

Keywords

  • Isogeometic analysis
  • Phase-field
  • Shape memory alloys
  • Thermo-mechanical

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