A computational micro-sphere model applied to the simulation of phase-transformations

Richard Ostwald, Thorsten Bartel, Andreas Menzel

Research output: Contribution to journalArticlepeer-review

Abstract

We present an efficient model for the simulation of polycrystalline materials undergoing solid to solid phase transformations. As a basis, we use a one-dimensional, thermodynamically consistent phase-transformation model. This model is embedded into a micro-sphere formulation in order to simulate three-dimensional boundary value problems. To solve the underlying evolution equations, we use a newly developed explicit integration scheme which could be proved to be unconditionally A-stable. Besides the investigation of homogeneous deformation states, representative finite element examples are discussed. It is shown that the model nicely reflects the overall behaviour. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Original languageEnglish
Pages (from-to)605-622
JournalZeitschrift für Angewandte Mathematik und Mechanik
Volume90
Issue number7-8
DOIs
Publication statusPublished - 2010

Subject classification (UKÄ)

  • Mechanical Engineering

Free keywords

  • Phase-transformations
  • micro-sphere model
  • finite element method

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