• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 14 Issue 1
Feb.  2001
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Article Contents
NIXin-hua, LIUXie-quan, LUXiao-bo. Toughening Analysis of Mixed-ModeⅠ-ⅡCracksin Transformation Toughened Ceramics[J]. Journal of Southwest Jiaotong University, 2001, 14(1): 37-40.
Citation: NIXin-hua, LIUXie-quan, LUXiao-bo. Toughening Analysis of Mixed-ModeⅠ-ⅡCracks in Transformation Toughened Ceramics[J]. Journal of Southwest Jiaotong University, 2001, 14(1): 37-40.

Toughening Analysis of Mixed-ModeⅠ-ⅡCracks in Transformation Toughened Ceramics

  • Publish Date: 25 Feb 2001
  • By use of the pressure sensitive stress criterion and the method of weight function, the fracture toughness enhancement induced bymixed modeⅠ-Ⅱcracks in phase transformation toughened ceramics is predicted theoretically. The theoretical expressions for the toughening effects of both the stationary and the steady-state growing cracks are given respectively. Results show that there is a negative effect from the stationary cracks and it increaseswith the increase ofKⅠ/KⅡ, and that the toughening effect of the steady- state growing cracks is not only associated with the modulus of elasticity, the width of transformation area and the transformation volume fraction, but also decreases with the increase ofKⅠ/KⅡ.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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