Effect of realistic 3D microstructure in crystal plasticity finite element analysis of polycrystalline Ti-5Al-2.5Sn

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    Abstract

    The effect of constitutive parameters and microstructure on the kinematic and constitutive responses within grains in a crystal plasticity finite element (CPFE) simulation of a polycrystalline titanium alloy are compared with experimental results. The simulation of a Ti-5Al-2.5Sn sample deformed in uniaxial tension at room temperature used a phenomenological power-law based CPFE model, which includes four families of slip systems commonly observed in structural metals with a hexagonal lattice structure. The experimentally characterized microstructure patch was approximated by a quasi-3D columnar grain structure and by a more realistic 3D representation. The quasi-3D microstructure was generated by extending the EBSD characterized surface microstructure in the depth direction, while the 3D microstructure was built based on subsurface orientation information acquired using differential-aperture X-ray microscopy (DAXM). The effect of grain morphology and constitutive parameters on simulation results are compared in terms of stress-strain responses and lattice reorientation.

    Original languageEnglish (US)
    Pages (from-to)21-35
    Number of pages15
    JournalInternational Journal of Plasticity
    Volume69
    DOIs
    StatePublished - 2015

    Profile

    Microstructure
    Cinanserin
    Carcinoid Tumor
    Plasticity
    Crystals
    Carbamoyl-Phosphate Synthase (Glutamine-Hydrolyzing)
    Edema Disease of Swine
    Acetanilides
    Parovarian Cyst
    Structural metals
    Anthralin
    Erwinia
    Biophysics
    Addison Disease
    Abdominal Injuries
    Titanium alloys
    Kinematics
    Crystal microstructure
    Microscopic examination
    Finite element method

    Keywords

    • A. Grain boundaries
    • B. Anisotropic material, crystal plasticity
    • C. Finite elements
    • Heterogeneous deformation

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Materials Science(all)

    Cite this

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    title = "Effect of realistic 3D microstructure in crystal plasticity finite element analysis of polycrystalline Ti-5Al-2.5Sn",
    abstract = "The effect of constitutive parameters and microstructure on the kinematic and constitutive responses within grains in a crystal plasticity finite element (CPFE) simulation of a polycrystalline titanium alloy are compared with experimental results. The simulation of a Ti-5Al-2.5Sn sample deformed in uniaxial tension at room temperature used a phenomenological power-law based CPFE model, which includes four families of slip systems commonly observed in structural metals with a hexagonal lattice structure. The experimentally characterized microstructure patch was approximated by a quasi-3D columnar grain structure and by a more realistic 3D representation. The quasi-3D microstructure was generated by extending the EBSD characterized surface microstructure in the depth direction, while the 3D microstructure was built based on subsurface orientation information acquired using differential-aperture X-ray microscopy (DAXM). The effect of grain morphology and constitutive parameters on simulation results are compared in terms of stress-strain responses and lattice reorientation.",
    keywords = "A. Grain boundaries, B. Anisotropic material, crystal plasticity, C. Finite elements, Heterogeneous deformation",
    author = "C. Zhang and H. Li and P. Eisenlohr and W. Liu and Boehlert, {C. J.} and Crimp, {M. A.} and Bieler, {T. R.}",
    year = "2015",
    doi = "10.1016/j.ijplas.2015.01.003",
    volume = "69",
    pages = "21--35",
    journal = "International Journal of Plasticity",
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    publisher = "Elsevier Limited",

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    TY - JOUR

    T1 - Effect of realistic 3D microstructure in crystal plasticity finite element analysis of polycrystalline Ti-5Al-2.5Sn

    AU - Zhang,C.

    AU - Li,H.

    AU - Eisenlohr,P.

    AU - Liu,W.

    AU - Boehlert,C. J.

    AU - Crimp,M. A.

    AU - Bieler,T. R.

    PY - 2015

    Y1 - 2015

    N2 - The effect of constitutive parameters and microstructure on the kinematic and constitutive responses within grains in a crystal plasticity finite element (CPFE) simulation of a polycrystalline titanium alloy are compared with experimental results. The simulation of a Ti-5Al-2.5Sn sample deformed in uniaxial tension at room temperature used a phenomenological power-law based CPFE model, which includes four families of slip systems commonly observed in structural metals with a hexagonal lattice structure. The experimentally characterized microstructure patch was approximated by a quasi-3D columnar grain structure and by a more realistic 3D representation. The quasi-3D microstructure was generated by extending the EBSD characterized surface microstructure in the depth direction, while the 3D microstructure was built based on subsurface orientation information acquired using differential-aperture X-ray microscopy (DAXM). The effect of grain morphology and constitutive parameters on simulation results are compared in terms of stress-strain responses and lattice reorientation.

    AB - The effect of constitutive parameters and microstructure on the kinematic and constitutive responses within grains in a crystal plasticity finite element (CPFE) simulation of a polycrystalline titanium alloy are compared with experimental results. The simulation of a Ti-5Al-2.5Sn sample deformed in uniaxial tension at room temperature used a phenomenological power-law based CPFE model, which includes four families of slip systems commonly observed in structural metals with a hexagonal lattice structure. The experimentally characterized microstructure patch was approximated by a quasi-3D columnar grain structure and by a more realistic 3D representation. The quasi-3D microstructure was generated by extending the EBSD characterized surface microstructure in the depth direction, while the 3D microstructure was built based on subsurface orientation information acquired using differential-aperture X-ray microscopy (DAXM). The effect of grain morphology and constitutive parameters on simulation results are compared in terms of stress-strain responses and lattice reorientation.

    KW - A. Grain boundaries

    KW - B. Anisotropic material, crystal plasticity

    KW - C. Finite elements

    KW - Heterogeneous deformation

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    U2 - 10.1016/j.ijplas.2015.01.003

    DO - 10.1016/j.ijplas.2015.01.003

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    EP - 35

    JO - International Journal of Plasticity

    T2 - International Journal of Plasticity

    JF - International Journal of Plasticity

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