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Finite Element Based Stress Concentration Factors for Pipes with Local Wall Thinning

유한요소해석을 이용한 국부 감육배관에 대한 응력집중계수 제시

  • 손범구 (성균관대학교 기계공학부) ;
  • 김윤재 (고려대학교 기계공학부) ;
  • 김영진 (성균관대학교 기계공학)
  • Published : 2004.07.01

Abstract

The present work complies the elastic stress concentration factor for a pipe with local wall thinning, based on detailed three-dimensional elastic FE analysis. To cover practically interesting cases, a wide range of pipe and defect geometries are considered, and both internal pressure and global bending are considered. Resulting values of stress concentration factors are tabulated for practical use, and the effect of relevant parameters such as pipe and defect geometries on stress concentration factors are discussed. The present results would provide valuable information to estimate fatigue damage of the pipe with local wall thinning under high cycle fatigue.

Keywords

Finite Element Analysis;High Cycle Fatigue;Local Wall Thinning;Stress Concentration Factor

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Cited by

  1. Derivation of Elastic Stress Concentration Factor Equations for Debris Fretting Flaws in Pressure Tubes of Pressurized Heavy Water Reactors vol.38, pp.2, 2014, https://doi.org/10.3795/KSME-A.2014.38.2.167