Journal of Welding and Joining

The Korean Welding and Joining Society (대한용접접합학회)
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Analysis of Stress Intensity Factor for the Cracked Plate Reinforced with a Sheet by Seam Welding

심용접에 의한 판재로 보강된 균열판의 응력세기계수 해석

  • 김옥환 (천안공업전문대학 용접기술과) ;
  • 박성두 (천안공업전문대학 용접기술과) ;
  • 이영호 (충남대학교 기계공학과)
  • Published : 1998.02.01
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Abstract

The stress intensity factor has been calculated theoretically for the cracked plate subjected to remote normal stress and reinforced with a sheet by symmetric seam welding. The singular integral equation was derived based on displacement compatibility condition between the cracked sheet and the reinforcement plate, and solved by means of Erdogran and Gupta's method. The results from the derived equation for stress intensity factor were compared with FEM solutions and seems to be reasonable. The reinforcement effect gets better as welding line is closer to the crack and the stiffness ratio of the cracked plate and the reinforcement sheet becomes larger.

Keywords

References

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