Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Study for Retardation Phenomenon

균열 성장 지연현상에 대한 연구

  • Kang, Yong-Goo (Department of Mechanical Design Engineering Kumoh National Institute of Technology) ;
  • Lee, Tae-Won (Department of Mechanical Design Engineering Kumoh National Institute of Technology) ;
  • Kim, Dong-Myung (Department of Mechanical Design Engineering Kumoh National Institute of Technology)
  • Published : 2013.10.31
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Abstract

In this study, in order to analyze the crack retardation behaviors, effective plastic zone concept was proposed. By use of the proposed concept, crack retardation period, compressive residual stress and variation of effective plastic zone shapes were obtained. The results were compared with those of Willenborg model. Retardation period, compressive residual stress and effective plastic zone size obtained by using effective plastic zone concept were larger then the results obtained by using Willenborg analysis. Effective stress intensity factors obtained by using effective plastic zone concept were smaller then the results obtained by using Willenborg analysis.

Keywords

References

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