Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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An Inspection on Stress Intensity Factor of Center Crack Tip by Superposition Method

중첩법에 의한 중앙 크랙 선단의 응력확대계수에 관한 검증

  • 한문식 (계명대학교 기계ㆍ자동차공학부) ;
  • 조재웅 (천안공업대학교 자동차과) ;
  • 이양섭 (계명대학교 기계ㆍ자동차공학부)
  • Published : 2003.03.01
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Abstract

In this study, the stress intensity factor of center crack tip is calculated by the superposition method when it is surrounded by symmetrically distributed small cracks. The values of stress intensity factors of center crack tips are compared with those of the center crack tips calculated by the superposition method. These compared errors are influenced by the locations of distributed small cracks. These errors are inspected. When small cracks overlap and approach near the center crack tip, the effect of interaction caused by these cracks becomes noticeable and these errors become larger. In case of multiple distributed small cracks except this case, the stress intensity factor of the center crack tip is easily calculated by the superposition method.

Keywords

References

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