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균열 검사 결과를 고려한 선체 잔류 피로 수명의 확률론적 예측
Stochastic Remaining Fatigue Life Assessment Considering Crack Inspection Results
- 박명진;
- 김유일
초록
In general, an inspection schedule is established based on the long-term fatigue life during the design stage. However, in the design stage, it is difficult to clearly identify the uncertainty factors affecting long-term fatigue life. In this study, the probabilistic fatigue life assessment was conducted in accordance with the methodology of DNV-GL. Firstly, The initial crack distribution estimated through the initial crack propagation analysis was updated by reflecting the results of crack inspection. Secondly, the updated crack distribution was compared with the initial crack distribution, and the probability of failure was updated with the effect of crack inspection.
키워드
Stochastic fatigue life assessment(확률론적 피로 수명 평가); Fracture mechanics(파괴 역학); Crack propagation(균열진전); Risk based inspection(위험 기반 검사); Reliability analysis(신뢰성 평가); Probability of failure(파손 확률); Probability of detection(검출 확률); Bayesian updating(베이지언 갱신)
- 제목
- 균열 검사 결과를 고려한 선체 잔류 피로 수명의 확률론적 예측
- 제목 (타언어)
- Stochastic Remaining Fatigue Life Assessment Considering Crack Inspection Results
- 저자
- 박명진; 김유일
- 발행일
- 2020-02
- 유형
- Y
- 저널명
- 대한조선학회 논문집
- 권
- 57
- 호
- 1
- 페이지
- 1 ~ 7