Numerical Analysis of Disclinations in Connecting Kink Bands Formed by Multiple Basal Shear

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  • Matsumura Ryutaro
    Department of Material Science and Engineering, Tokyo Institute of Technology
  • Shinohara Yuri
    Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology Laboratory for Future Interdisciplinary Research of Science and Technology, Institute of Innovative Research, Tokyo Institute of Technology
  • Inamura Tomonari
    Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology Laboratory for Future Interdisciplinary Research of Science and Technology, Institute of Innovative Research, Tokyo Institute of Technology

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説明

<p>We analyzed the kinematic (geometric) aspects of kink bands with multiple basal shear using rank-1 connection to investigate the type of disclination and annihilation of disclinations in kink microstructures. We found that wedge disclinations occur in connecting kink bands for realistic magnitude of shear that can occur, regardless of the shear direction. The normal vector of the junction plane between kink bands and Frank vector of the resulting wedge-disclination varied continuously with respect to the changes in the magnitude and direction of the basal shear. Annihilation of disclinations is possible even between the kinks which are formed by multiple basal shears. Kinematical model of the three-dimensional wavy kinks are proposed using the obtained results.</p>

収録刊行物

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 64 (4), 817-826, 2023-04-01

    公益社団法人 日本金属学会

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