Advance Search
Volume 30 Issue 2
Apr.  2009
Turn off MathJax
Article Contents
WANG Zhong-xian, WU Chun-du. Fracture Toughness and Failure Curve of 22NiMoCr3-7 Steel in Ductile-Brittle Transition Range[J]. Nuclear Power Engineering, 2009, 30(2): 46-50.
Citation: WANG Zhong-xian, WU Chun-du. Fracture Toughness and Failure Curve of 22NiMoCr3-7 Steel in Ductile-Brittle Transition Range[J]. Nuclear Power Engineering, 2009, 30(2): 46-50.

Fracture Toughness and Failure Curve of 22NiMoCr3-7 Steel in Ductile-Brittle Transition Range

  • Received Date: 2008-02-12
  • Rev Recd Date: 2008-10-06
  • Available Online: 2025-07-28
  • Publish Date: 2009-04-15
  • The numerical elastic-plastic analyses were processed by using FEA to three-point bend sam-ples in the ductile-brittle transition range.The samples are made of 22NiMoCr3-7 pressure vessel steel with single edge crack.Stress fields and constraint effects of the standard crack sample and the sallow crack sam-ple was assessed by using J-A2 fracture theory.And the constraint parameters A2 relating to the master curve reference temperatures T0 were obtained.Based on J-A2 approach and RKR fracture model,a formula to fore-cast fracture toughness was given.When it was used to forecast the fracture failure curves at different tem-peratures,the forecast results agree well with the experimental data.

     

  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (7) PDF downloads(0) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return