Analysis of a Branched Crack in a Semi-Infinite Plate Under Tension and Bending Moment

인장과 굽힘을 받는 반무한 평판내의 분기균열 해석

  • 김유환 (전남대학교 기계공학과) ;
  • 범현규 (전남대학교 기계공학과) ;
  • 박치용 (한국전력공사 전력연구원 원자력 연구실)
  • Published : 2002.09.01

Abstract

A branched crack in a semi-infinite plate under uniform tension and bending moment is considered in this study By using the superposition, the stress and moment intensity factors for the branched crack subjected to uniform tension and bending moment we evaluated. The stress intensity factors we obtained by using the finite element method and the J-based mutual integral. The moment intensity factors are calculated by extrapolating the values of the moment new the crack tip. Numerical results lot the normalized stress and moment Intensity factors we shown as functions of the ratio of branched crack length to main crack length and the branching angle.

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