A computational study of the microstructural effect on the deformation and fracture of friction stir welded aluminum

Ruslan Revovich Balokhonov, V. A. Romanova, S. A. Martynov, A. V. Zinoviev, O. S. Zinovieva, E. E. Batukhtina

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    A computational analysis of the microstructural effect on the deformation and fracture of friction stir welded aluminum is performed. A dynamic boundary-value problem using a plane strain approximation is solved numerically by the finite difference method. The calculations take an explicit account of experimental polycrystalline microstructures typical for different weld zones, like the base material, weld nugget, and thermo-mechanically affected zones. The mechanical response of individual grains is simulated within an elastic-plastic formulation of the problem with isotropic strain hardening. A fracture model allowing for crack generation and propagation in maximum equivalent plastic strain regions is used. It is shown that the localization of plastic strain and the strength of aluminum in different weld zones are determined by the microstructure of the material on the advancing side of the weld.

    Original languageEnglish
    Pages (from-to)2-10
    Number of pages9
    JournalComputational Materials Science
    Volume116
    DOIs
    Publication statusPublished - 15 Apr 2016

    Fingerprint

    Aluminum
    Plastics
    Friction
    Welds
    friction
    plastics
    aluminum
    Microstructure
    Plastic deformation
    Strain Hardening
    microstructure
    strain hardening
    Computational Analysis
    plane strain
    Plane Strain
    boundary value problems
    Difference Method
    Finite Difference
    Crack
    cracks

    Keywords

    • Fracture
    • Friction stir welding
    • Microstructure-based models
    • Numerical simulation
    • Plastic strain localization
    • Polycrystals

    ASJC Scopus subject areas

    • Computer Science(all)
    • Chemistry(all)
    • Materials Science(all)
    • Mechanics of Materials
    • Physics and Astronomy(all)
    • Computational Mathematics

    Cite this

    A computational study of the microstructural effect on the deformation and fracture of friction stir welded aluminum. / Balokhonov, Ruslan Revovich; Romanova, V. A.; Martynov, S. A.; Zinoviev, A. V.; Zinovieva, O. S.; Batukhtina, E. E.

    In: Computational Materials Science, Vol. 116, 15.04.2016, p. 2-10.

    Research output: Contribution to journalArticle

    Balokhonov, Ruslan Revovich ; Romanova, V. A. ; Martynov, S. A. ; Zinoviev, A. V. ; Zinovieva, O. S. ; Batukhtina, E. E. / A computational study of the microstructural effect on the deformation and fracture of friction stir welded aluminum. In: Computational Materials Science. 2016 ; Vol. 116. pp. 2-10.
    @article{43fc03572fc84c7eb23640ce55f22dd7,
    title = "A computational study of the microstructural effect on the deformation and fracture of friction stir welded aluminum",
    abstract = "A computational analysis of the microstructural effect on the deformation and fracture of friction stir welded aluminum is performed. A dynamic boundary-value problem using a plane strain approximation is solved numerically by the finite difference method. The calculations take an explicit account of experimental polycrystalline microstructures typical for different weld zones, like the base material, weld nugget, and thermo-mechanically affected zones. The mechanical response of individual grains is simulated within an elastic-plastic formulation of the problem with isotropic strain hardening. A fracture model allowing for crack generation and propagation in maximum equivalent plastic strain regions is used. It is shown that the localization of plastic strain and the strength of aluminum in different weld zones are determined by the microstructure of the material on the advancing side of the weld.",
    keywords = "Fracture, Friction stir welding, Microstructure-based models, Numerical simulation, Plastic strain localization, Polycrystals",
    author = "Ruslan Revovich Balokhonov and Romanova, {V. A.} and Martynov, {S. A.} and Zinoviev, {A. V.} and Zinovieva, {O. S.} and Batukhtina, {E. E.}",
    year = "2016",
    month = "4",
    day = "15",
    doi = "10.1016/j.commatsci.2015.10.005",
    language = "English",
    volume = "116",
    pages = "2--10",
    journal = "Computational Materials Science",
    issn = "0927-0256",
    publisher = "Elsevier",

    }

    TY - JOUR

    T1 - A computational study of the microstructural effect on the deformation and fracture of friction stir welded aluminum

    AU - Balokhonov, Ruslan Revovich

    AU - Romanova, V. A.

    AU - Martynov, S. A.

    AU - Zinoviev, A. V.

    AU - Zinovieva, O. S.

    AU - Batukhtina, E. E.

    PY - 2016/4/15

    Y1 - 2016/4/15

    N2 - A computational analysis of the microstructural effect on the deformation and fracture of friction stir welded aluminum is performed. A dynamic boundary-value problem using a plane strain approximation is solved numerically by the finite difference method. The calculations take an explicit account of experimental polycrystalline microstructures typical for different weld zones, like the base material, weld nugget, and thermo-mechanically affected zones. The mechanical response of individual grains is simulated within an elastic-plastic formulation of the problem with isotropic strain hardening. A fracture model allowing for crack generation and propagation in maximum equivalent plastic strain regions is used. It is shown that the localization of plastic strain and the strength of aluminum in different weld zones are determined by the microstructure of the material on the advancing side of the weld.

    AB - A computational analysis of the microstructural effect on the deformation and fracture of friction stir welded aluminum is performed. A dynamic boundary-value problem using a plane strain approximation is solved numerically by the finite difference method. The calculations take an explicit account of experimental polycrystalline microstructures typical for different weld zones, like the base material, weld nugget, and thermo-mechanically affected zones. The mechanical response of individual grains is simulated within an elastic-plastic formulation of the problem with isotropic strain hardening. A fracture model allowing for crack generation and propagation in maximum equivalent plastic strain regions is used. It is shown that the localization of plastic strain and the strength of aluminum in different weld zones are determined by the microstructure of the material on the advancing side of the weld.

    KW - Fracture

    KW - Friction stir welding

    KW - Microstructure-based models

    KW - Numerical simulation

    KW - Plastic strain localization

    KW - Polycrystals

    UR - http://www.scopus.com/inward/record.url?scp=84959455627&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84959455627&partnerID=8YFLogxK

    U2 - 10.1016/j.commatsci.2015.10.005

    DO - 10.1016/j.commatsci.2015.10.005

    M3 - Article

    VL - 116

    SP - 2

    EP - 10

    JO - Computational Materials Science

    JF - Computational Materials Science

    SN - 0927-0256

    ER -