中国物理B ›› 2016, Vol. 25 ›› Issue (4): 40203-040203.doi: 10.1088/1674-1056/25/4/040203

• GENERAL • 上一篇    下一篇

Two-dimensional fracture analysis of piezoelectric material based on the scaled boundary node method

Shen-Shen Chen(陈莘莘), Juan Wang(王娟), Qing-Hua Li(李庆华)   

  1. School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
  • 收稿日期:2015-09-27 修回日期:2015-12-07 出版日期:2016-04-05 发布日期:2016-04-05
  • 通讯作者: Shen-Shen Chen E-mail:chenshenshen@tsinghua.org.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11462006 and 21466012), the Foundation of Jiangxi Provincial Educational Committee, China (Grant No. KJLD14041), and the Foundation of East China Jiaotong University, China (Grant No. 09130020).

Two-dimensional fracture analysis of piezoelectric material based on the scaled boundary node method

Shen-Shen Chen(陈莘莘), Juan Wang(王娟), Qing-Hua Li(李庆华)   

  1. School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China
  • Received:2015-09-27 Revised:2015-12-07 Online:2016-04-05 Published:2016-04-05
  • Contact: Shen-Shen Chen E-mail:chenshenshen@tsinghua.org.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. 11462006 and 21466012), the Foundation of Jiangxi Provincial Educational Committee, China (Grant No. KJLD14041), and the Foundation of East China Jiaotong University, China (Grant No. 09130020).

摘要:

A scaled boundary node method (SBNM) is developed for two-dimensional fracture analysis of piezoelectric material, which allows the stress and electric displacement intensity factors to be calculated directly and accurately. As a boundary-type meshless method, the SBNM employs the moving Kriging (MK) interpolation technique to an approximate unknown field in the circumferential direction and therefore only a set of scattered nodes are required to discretize the boundary. As the shape functions satisfy Kronecker delta property, no special techniques are required to impose the essential boundary conditions. In the radial direction, the SBNM seeks analytical solutions by making use of analytical techniques available to solve ordinary differential equations. Numerical examples are investigated and satisfactory solutions are obtained, which validates the accuracy and simplicity of the proposed approach.

关键词: fracture mechanics, meshless method, semi-analytical, piezoelectric materials

Abstract:

A scaled boundary node method (SBNM) is developed for two-dimensional fracture analysis of piezoelectric material, which allows the stress and electric displacement intensity factors to be calculated directly and accurately. As a boundary-type meshless method, the SBNM employs the moving Kriging (MK) interpolation technique to an approximate unknown field in the circumferential direction and therefore only a set of scattered nodes are required to discretize the boundary. As the shape functions satisfy Kronecker delta property, no special techniques are required to impose the essential boundary conditions. In the radial direction, the SBNM seeks analytical solutions by making use of analytical techniques available to solve ordinary differential equations. Numerical examples are investigated and satisfactory solutions are obtained, which validates the accuracy and simplicity of the proposed approach.

Key words: fracture mechanics, meshless method, semi-analytical, piezoelectric materials

中图分类号:  (Numerical simulation; solution of equations)

  • 02.60.Cb
02.60.Lj (Ordinary and partial differential equations; boundary value problems) 46.25.-y (Static elasticity)