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    A thermomechanical crystal plasticity constitutive model for ultrasonic consolidation

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    Type
    Article
    Authors
    Siddiqi, Hira Fatima
    El Sayed, Tamer S.
    KAUST Department
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Learning Support
    Physical Science and Engineering (PSE) Division
    Date
    2012-01
    Permanent link to this record
    http://hdl.handle.net/10754/594290
    
    Metadata
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    Abstract
    We present a micromechanics-based thermomechanical constitutive model to simulate the ultrasonic consolidation process. Model parameters are calibrated using an inverse modeling approach. A comparison of the simulated response and experimental results for uniaxial tests validate and verify the appropriateness of the proposed model. Moreover, simulation results of polycrystalline aluminum using the identified crystal plasticity based material parameters are compared qualitatively with the electron back scattering diffraction (EBSD) results reported in the literature. The validated constitutive model is then used to simulate the ultrasonic consolidation process at sub-micron scale where an effort is exerted to quantify the underlying micromechanisms involved during the ultrasonic consolidation process. © 2011 Elsevier B.V. All rights reserved.
    Citation
    Siddiq A, Sayed TE (2012) A thermomechanical crystal plasticity constitutive model for ultrasonic consolidation. Computational Materials Science 51: 241–251. Available: http://dx.doi.org/10.1016/j.commatsci.2011.07.023.
    Sponsors
    This work was fully funded by the KAUST baseline fund.
    Publisher
    Elsevier BV
    Journal
    Computational Materials Science
    DOI
    10.1016/j.commatsci.2011.07.023
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.commatsci.2011.07.023
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Computer, Electrical and Mathematical Science and Engineering (CEMSE) Division

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