Applied Mathematics and Mechanics (English Edition) ›› 2011, Vol. 32 ›› Issue (5): 563-570.doi: https://doi.org/10.1007/s10483-011-1438-9

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General solutions of plane problem for power function curved cracks

郭俊宏 袁泽帅 卢子兴   

  1. Institute of Solid Mechanics, Beihang University, Beijing 100191, P. R. China
  • 收稿日期:2010-12-08 修回日期:2011-03-15 出版日期:2011-04-27 发布日期:2011-05-01

General solutions of plane problem for power function curved cracks

GUO Jun-Hong, YUAN Ze-Shuai, LU Zi-Xin   

  1. Institute of Solid Mechanics, Beihang University, Beijing 100191, P. R. China
  • Received:2010-12-08 Revised:2011-03-15 Online:2011-04-27 Published:2011-05-01

摘要: A new exact and universal conformal mapping is proposed. Using Muskhelishvili’s complex potential method, the plane elasticity problem of power function curved cracks is investigated with an arbitrary power of a natural number, and the general solutions of the stress intensity factors (SIFs) for mode I and mode II at the crack tip are obtained under the remotely uniform tensile loads. The present results can be reduced to the well-known solutions when the power of the function takes different natural numbers. Numerical examples are conducted to reveal the effects of the coefficient, the power, and the projected length along the x-axis of the power function curved crack on the SIFs for mode I and mode II.

Abstract: A new exact and universal conformal mapping is proposed. Using Muskhelishvili’s complex potential method, the plane elasticity problem of power function curved cracks is investigated with an arbitrary power of a natural number, and the general solutions of the stress intensity factors (SIFs) for mode I and mode II at the crack tip are obtained under the remotely uniform tensile loads. The present results can be reduced to the well-known solutions when the power of the function takes different natural numbers. Numerical examples are conducted to reveal the effects of the coefficient, the power, and the projected length along the x-axis of the power function curved crack on the SIFs for mode I and mode II.

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