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Mathematical concepts for the micromechanical modelling of dislocation dynamics with a phase-field approach


Reference:

Kundin, J., Emmerich, H. and Zimmer, J., 2011. Mathematical concepts for the micromechanical modelling of dislocation dynamics with a phase-field approach. Philosophical Magazine, 91 (1), pp. 97-121.

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    Official URL:

    http://dx.doi.org/10.1080/14786435.2010.485587

    Abstract

    This contribution reviews the mathematical concepts of micromechanical modelling in the phase-field approach applied to dislocation dynamics. The intention is two-fold. On the one hand, modelling of dislocation dynamics is a very recent field of development in phase-field theory, in comparison to the simulation of diffusional phase transformation and related microstructure evolution problems in materials science. The reason is that modelling dislocation dynamics poses several challenges for phase-field concepts which go beyond purely diffusional problems in materials science such as, e.g. dendritic solidification, as we point out in Section 3. On the other hand, the modelling of dislocations has triggered further wide-ranging developments of phase-field based models for deformation problems. This is an important development, since a comprehensive model for deformation problems should include displacive as well as diffusional degrees of freedom from the atomic scale to the microscale. This is something phase-field theory is capable of, as discussed in this review article. We aim to give an overview of relevant mathematical concepts, and to stimulate further steps in this direction.

    Details

    Item Type Articles
    CreatorsKundin, J., Emmerich, H. and Zimmer, J.
    DOI10.1080/14786435.2010.485587
    Uncontrolled Keywordsdislocation dynamics, phase-field approach, micromechanics, modelling
    DepartmentsFaculty of Science > Mathematical Sciences
    Publisher StatementZimmer_Phil-Mag_2011_91_1_97.pdf: This is an electronic version of an article published in Kundin, J., Emmerich, H. and Zimmer, J., 2011. Mathematical concepts for the micromechanical modelling of dislocation dynamics with a phase-field approach. Philosophical Magazine, 91 (1), pp. 97-121. Philosophical Magazine is available online at: www.tandfonline.com with the open URL of your article http://www.tandfonline.com/doi/abs/10.1080/14786435.2010.485587
    RefereedYes
    StatusPublished
    ID Code22003

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