A micromechanical model for the deformation behavior of titanium polycrystals

V. Romanova, R. Balokhonov, V. Shakhidjanov, O. Zinovieva

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A microstructure-based constitutive model for a polycrystalline titanium alloy is constructed on the basis of anisotropic elasticity and crystal plasticity theory, with allowance made for the prismatic and basal slip systems. A three-dimensional polycrystalline structure consisting of 1600 grains is designed by a step-by-step packing method and introduced explicitly into finite-element calculations. Numerical modeling of uniaxial tension is performed using Abaqus/Explicit. Grains unfavorably oriented to the loading axis are shown to remain elastic, while slip occurs in the neighboring grains. As this takes place, rotational modes of deformation are activated in addition to shear strain (translational) modes, and surface grains with a low ability to yield demonstrate a tendency towards extrusion.

    Original languageEnglish
    Title of host publicationAdvanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
    PublisherAmerican Institute of Physics Inc.
    Volume1683
    ISBN (Electronic)9780735413306
    DOIs
    Publication statusPublished - 27 Oct 2015
    EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 - Tomsk, Russian Federation
    Duration: 21 Sep 201525 Sep 2015

    Conference

    ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015
    CountryRussian Federation
    CityTomsk
    Period21.9.1525.9.15

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Fingerprint Dive into the research topics of 'A micromechanical model for the deformation behavior of titanium polycrystals'. Together they form a unique fingerprint.

  • Cite this

    Romanova, V., Balokhonov, R., Shakhidjanov, V., & Zinovieva, O. (2015). A micromechanical model for the deformation behavior of titanium polycrystals. In Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures (Vol. 1683). [020194] American Institute of Physics Inc.. https://doi.org/10.1063/1.4932884