Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Evaluation of Stress Intensity Factor for A Partially Patched Crack Using an Approximate Weight Function

  • Kim, Jong-Ho (Force Measurement ＆ Evaluation Lab., Korea Research Institute of Standards and Science(KRISS)) ;
  • Hong, Seong-Gu (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Lee, Soon-Bok (Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology)
  • Published : 2003.11.01
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Abstract

A cracked plate with a patch bonded on one side was treated with a crack-bridging model using weight function: assuming continuous distribution of springs acting between th crack surfaces, the stress intensity factor of the patched crack was numerically obtained. Especially in the case of a patched crack subjected to residual non-uniform stress, the stress intensity factor was easily with the corresponding approximate weight function. This paper presented the stress intensity factors for a crack partially patched within a finite plate or a patched crack initiated from a notch.

Keywords

References

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