Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (9): 1533-1546.doi: https://doi.org/10.1007/s10483-023-3027-8

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A Dugdale-Barenblatt model for elliptical orifice problem with asymmetric cracks in one-dimensional orthorhombic quasicrystals

Jing ZHANG, Guanting LIU   

  1. College of Mathematics Science, Inner Mongolia Normal University, Huhhot 010022, China
  • 收稿日期:2022-12-07 修回日期:2023-06-12 发布日期:2023-08-28
  • 通讯作者: Guanting, E-mail: guantingliu@imnu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Nos.12162027 and 11962026) and the Natural Science Key Project of Science and Technology Research in Higher Education Institutions of Inner Mongolia Autonomous Region (No.NJZZ22574)

A Dugdale-Barenblatt model for elliptical orifice problem with asymmetric cracks in one-dimensional orthorhombic quasicrystals

Jing ZHANG, Guanting LIU   

  1. College of Mathematics Science, Inner Mongolia Normal University, Huhhot 010022, China
  • Received:2022-12-07 Revised:2023-06-12 Published:2023-08-28
  • Contact: Guanting, E-mail: guantingliu@imnu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Nos.12162027 and 11962026) and the Natural Science Key Project of Science and Technology Research in Higher Education Institutions of Inner Mongolia Autonomous Region (No.NJZZ22574)

摘要: By means of Muskhelishvili's method and the technique of generalized conformal mapping, the physical plane problems are transformed into regular mathematical problems in quasicrystals (QCs). The analytical solution to an elliptical orifice problem with asymmetric cracks in one-dimensional (1D) orthorhombic QCs is obtained. By using the Dugdale-Barenblatt model, the plastic simulation at the crack tip of the elliptical orifice with asymmetric cracks in 1D orthorhombic QCs is performed. Finally, the size of the atomic cohesive force zone is determined precisely, and the size of the atomic cohesive force zone around the crack tip of an elliptical orifice with a single crack or two symmetric cracks is obtained.

关键词: one-dimensional (1D) orthorhombic quasicrystal (QC), Dugdale-Barenblatt model, atomic cohesive force zone, crack

Abstract: By means of Muskhelishvili's method and the technique of generalized conformal mapping, the physical plane problems are transformed into regular mathematical problems in quasicrystals (QCs). The analytical solution to an elliptical orifice problem with asymmetric cracks in one-dimensional (1D) orthorhombic QCs is obtained. By using the Dugdale-Barenblatt model, the plastic simulation at the crack tip of the elliptical orifice with asymmetric cracks in 1D orthorhombic QCs is performed. Finally, the size of the atomic cohesive force zone is determined precisely, and the size of the atomic cohesive force zone around the crack tip of an elliptical orifice with a single crack or two symmetric cracks is obtained.

Key words: one-dimensional (1D) orthorhombic quasicrystal (QC), Dugdale-Barenblatt model, atomic cohesive force zone, crack

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