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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.11
- 수록면
- 1,187 - 1,194 (8page)
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초록· 키워드
오류제보하기
During the last decade, possibility of flaw occurrences has been rapidly increased world-widely as the increase of operating times of petro-chemical facilities. For instance, from a recent in-service inspection, three different sized surface cracks were detected in welding parts of a spherical oxygen holder in Korea. While API579 code provides corresponding engineering assessment procedures to determine crack driving forces, in the present work, numerical analyses are carried out for the cracked oxygen holder to investigate effects of complex geometry, analysis model and residual stress. With regard to the detailed finite element analysis, stress intensity factors are determined from both the full three-dimensional model and equivalent plate model. Also, as an alternative, stress intensity factors are calculated for equivalent plate model by employing the noted influence stress function technique. Finally, parametric structural integrity evaluation of the cracked oxygen holder is conducted in use of failure assessment diagram method, J/T method and DPFAD method. Effects of the geometry and so forth are examined and key findings from the simulations are fully discussed, which enables to determine practical safety margins of spherical components containing a defect.
목차
Abstract
1. 서론
2. 산소용기의 관한 선형탄성 파괴역학 해석
3. 등가 유한요소모델을 이용한 선형탄성 파괴역학 해석
4. 탄소성 파괴역학 해석
5. 결론
참고문헌
참고문헌 (10)
참고문헌 신청
1. [학술대회논문] - Lee J. S. / 2002 / Integrity Assessment for the Crack-like Flaw of Welded Structures by Using Failure Assessment Diagram / Proceeding of the Korea Society of Mechanical Engineering (KSME) 2002 Annual Spring Conference
2. [학술지(정기간행물)] - Kim , Y. J. / 1995 / Defect Assessment for Integrity Evaluation of CANDU Pressure Tubes / Korea Society of Mechanical Engineers (KSME) 19 (3) : 731 ~ 740
3. [학술지(정기간행물)] - Chang, Y. S. / 2006 / Burst Pressure Estimation of Steam Generator Tubes Based on Fracture Mechanics Analyses / Key Engineering Materials 321 : 666 ~ 669
4. [학술지(정기간행물)] - Huh, N. S. / 1997 / Effects of Finite Element Modelling Technique on the J/T Analysis Results in Nuclear Piping / Korea Society of Mechanical Engineers (KSME) Transaction (A) 2 (1) : 979 ~ 984
5. [학술지(정기간행물)] - Kim, Y. J. / 1990 / A Development of Integrity Evaluation System Based on Elastic Plastic Fracture Mechanics / Korea Society of Mechanical Engineers (KSME) 14 (3) : 646 ~ 655
2. [학술지(정기간행물)] - Kim , Y. J. / 1995 / Defect Assessment for Integrity Evaluation of CANDU Pressure Tubes / Korea Society of Mechanical Engineers (KSME) 19 (3) : 731 ~ 740
3. [학술지(정기간행물)] - Chang, Y. S. / 2006 / Burst Pressure Estimation of Steam Generator Tubes Based on Fracture Mechanics Analyses / Key Engineering Materials 321 : 666 ~ 669
4. [학술지(정기간행물)] - Huh, N. S. / 1997 / Effects of Finite Element Modelling Technique on the J/T Analysis Results in Nuclear Piping / Korea Society of Mechanical Engineers (KSME) Transaction (A) 2 (1) : 979 ~ 984
5. [학술지(정기간행물)] - Kim, Y. J. / 1990 / A Development of Integrity Evaluation System Based on Elastic Plastic Fracture Mechanics / Korea Society of Mechanical Engineers (KSME) 14 (3) : 646 ~ 655
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UCI(KEPA) : I410-ECN-0101-2009-550-019041247