Applied Mathematics and Mechanics (English Edition) ›› 1997, Vol. 18 ›› Issue (7): 689-696.

• 论文 • 上一篇    下一篇

ASYMPTOTIC ANALYSIS OF PLANE-STRAIN MODE I STEADY-STATE CRACK GROWTH IN TRANSFORMATION TOUGHENING CERAMICS(Ⅱ)

张浠1, 叶裕恭2   

  1. 1. Zhongnan Institute of Technology, Hengyang 421001, P. R. China;
    2. Institute of Mechanics, Chinese Academy of Scicnces, Beijing 100080, P. R. China
  • 收稿日期:1996-04-17 修回日期:1997-04-17 出版日期:1997-07-18 发布日期:1997-07-18
  • 基金资助:
    Project supported by the National Natural Science Foundation of China

ASYMPTOTIC ANALYSIS OF PLANE-STRAIN MODE I STEADY-STATE CRACK GROWTH IN TRANSFORMATION TOUGHENING CERAMICS(Ⅱ)

Zhang Xi1, Ye Yugong2   

  1. 1. Zhongnan Institute of Technology, Hengyang 421001, P. R. China;
    2. Institute of Mechanics, Chinese Academy of Scicnces, Beijing 100080, P. R. China
  • Received:1996-04-17 Revised:1997-04-17 Online:1997-07-18 Published:1997-07-18
  • Supported by:
    Project supported by the National Natural Science Foundation of China

摘要: Based on a constitutive law which includes the shear components oftransformation plasticity. the asymptotic solutions to near-tip fields of plane-strainmode I steadity propagating cracks in rransformed ceramics are obtained for the caseof linear isotropic hardening. The Stress singularity. the distributions of stresses andvelocities at the crack tip are determmed for various material parameters. The factorsinfluencing the near-tip fields are discussed in detail.

Abstract: Based on a constitutive law which includes the shear components oftransformation plasticity. the asymptotic solutions to near-tip fields of plane-strainmode I steadity propagating cracks in rransformed ceramics are obtained for the caseof linear isotropic hardening. The Stress singularity. the distributions of stresses andvelocities at the crack tip are determmed for various material parameters. The factorsinfluencing the near-tip fields are discussed in detail.

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