한국압력기기공학회 논문집 (Transactions of the Korean Society of Pressure Vessels and Piping)

한국압력기기공학회 (Korean Society of Pressure Vessels and Piping)
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국부 감육이 배관 굽힘 컴플라이언스에 미치는 영향

Effect of Local Wall Thinning on Pipe Elastic Bending Compliance

  • 서기완 (고려대학교 기계공학부) ;
  • 김재민 (고려대학교 기계공학부) ;
  • 김윤재 (고려대학교 기계공학부)
  • 투고 : 2021.10.20
  • 심사 : 2021.11.29
  • 발행 : 2021.12.31
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초록

The thickness of pipe can be locally reduced during operation due to wall thinning. Due to its significance on structural integrity, many non-destructive detecting techniques and assessment methods are available. In this study, the elastic bending compliance of local wall-thinned pipe is presented in terms of the wall thinning geometry: wall thinning depth, circumferential angle and longitudinal length. Elastic finite element (FE) analysis further shows that the presented equation can be used for any wall thinning shape. The proposed solution differs from FE results by less than 6% for all cases analyzed. The bending compliance increases linearly with increasing longitudinal thinning length and non-linearly with increasing thinning angle and depth.

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과제정보

본 결과물은 환경부의 재원으로 한국환경산업기술원의 물관리 연구사업의 지원을 받아 연구되었습니다. (No. 127587)

참고문헌

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