Applied Mathematics and Mechanics (English Edition) ›› 2017, Vol. 38 ›› Issue (8): 1071-1090.doi: https://doi.org/10.1007/s10483-017-2223-9

• 论文 • 上一篇    下一篇

Duality in interaction potentials for curved surface bodies and inside particles

Dan WANG1, Yajun YIN1, Jiye WU2, Zheng ZHONG3   

  1. 1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;
    2. Department of Civil Engineering, Nanjing Tech University, Nanjing 211800, China;
    3. Department of Engineering Mechanics, Tongji University, Shanghai 200092, China
  • 收稿日期:2016-11-01 修回日期:2016-12-06 出版日期:2017-08-01 发布日期:2017-08-01
  • 通讯作者: Yajun YIN,E-mail:yinyj@tsinghua.edu.cn E-mail:yinyj@tsinghua.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Nos. 11672150 and 11272175), the Natural Science Foundation of Jiangsu Province (No. BK20130910), and the specialized Research Found for Doctoral Program of Higher Education (No. 2013000211004)

Duality in interaction potentials for curved surface bodies and inside particles

Dan WANG1, Yajun YIN1, Jiye WU2, Zheng ZHONG3   

  1. 1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China;
    2. Department of Civil Engineering, Nanjing Tech University, Nanjing 211800, China;
    3. Department of Engineering Mechanics, Tongji University, Shanghai 200092, China
  • Received:2016-11-01 Revised:2016-12-06 Online:2017-08-01 Published:2017-08-01
  • Contact: Yajun YIN E-mail:yinyj@tsinghua.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 11672150 and 11272175), the Natural Science Foundation of Jiangsu Province (No. BK20130910), and the specialized Research Found for Doctoral Program of Higher Education (No. 2013000211004)

摘要:

Based on the viewpoint of duality, this paper studies the interaction between a curved surface body and an inside particle. By convex/concave bodies with geometric duality, interaction potentials of particles located outside and inside the curved surface bodies are shown to have duality. With duality, the curvature-based potential between a curved surface body and an inside particle is derived. Furthermore, the normal and tangential driving forces exerted on the particle are studied and expressed as a function of curvatures and curvature gradients. Numerical experiments are designed to test accuracy of the curvature-based potential.

关键词: transverse crack, saturate crack spacing, damage, stress, curvature gradient, curvature, micro/nano curved surface body, curvature-based potential, driving force, duality

Abstract:

Based on the viewpoint of duality, this paper studies the interaction between a curved surface body and an inside particle. By convex/concave bodies with geometric duality, interaction potentials of particles located outside and inside the curved surface bodies are shown to have duality. With duality, the curvature-based potential between a curved surface body and an inside particle is derived. Furthermore, the normal and tangential driving forces exerted on the particle are studied and expressed as a function of curvatures and curvature gradients. Numerical experiments are designed to test accuracy of the curvature-based potential.

Key words: transverse crack, saturate crack spacing, damage, stress, micro/nano curved surface body, curvature-based potential, curvature, driving force, duality, curvature gradient

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