期刊
ARCHIVE OF APPLIED MECHANICS
卷 80, 期 8, 页码 895-907出版社
SPRINGER
DOI: 10.1007/s00419-009-0349-3
关键词
Functional graded material; Circular hole; Stress concentration
类别
资金
- National Natural Science Foundation of China [A10672076]
- Foundation for the Author of National Excellent Doctoral Dissertation of PR China [200534]
This paper is to study the two-dimensional stress distribution of a functional graded material plate (FGMP) with a circular hole under arbitrary constant loads. With using the method of piece-wise homogeneous layers, the stress distribution of the functional graded material plate having radial arbitrary elastic properties is derived based on the theory of the complex variable functions. As examples, numerical results are presented for the FGMPs having given radial Young's modulus or Poisson's ratio. It is shown that the stress is greatly reduced as the radial Young's modulus increased, but it is less influenced by the variation of the Poisson's ratio. Moreover, it is also found that the stress level varies when the radial Young's modulus increased in different ways. Thus, it can be concluded that the stress around the circular hole in the FGMP can be effectively reduced by choosing the proper change ways of the radial elastic properties.
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