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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.4
- 수록면
- 64 - 71 (8page)
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초록· 키워드
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In this paper, crack propagation analyses in the inner diameter (ID) repair weld of the dissimilar metal weldment of a nozzle were performed using a finite element alternating method (FEAM). To calculate the theoretical solution for the crack tip stress intensity factor, a weak type singular integral equation consisted of crack surface traction and dislocation density function was constructed and solved in conjunction with the FEAM. A two-dimensional axisymmetric finite element nozzle model was prepared and ID repair welding was simulated. An initial crack, 10% depth of weld thickness, was assumed and crack propagation trajectory from the initial crack to the 75% depth of thickness was calculated using the FEAM. Crack growth versus time curve was also calculated and compared with the curves obtained from ASME code method. With the method constructed in this paper, crack propagation trajectory and crack growth time were calculated automatically and effectively.
목차
Abstract
1. 서론
2. 균열해 및 균열성장 계산방법
3. 용접잔류응력 해석
4. 균열성장평가
5. 결론
후기
참고문헌
참고문헌 (19)
참고문헌 신청
1. [기타자료] - / 2004 / Materials Reliability Program : Alloy 82/182 Butt Weld Safety Assessment for U. S. PWR Plant Designs (MRP-113) / EPRI, Palo Alto, CA: : 1009549 ~
2. [기타자료] - / 2004 / Materials Reliability Program : Crack Growth Rates for Evaluating Primary Water Stress Corrosion Cracking (PWSCC) of Alloy 82, 182, and 132 Welds (MRP-115) / EPRI. Palo Alto, CA : 1006696 ~
3. [기타자료] - / 2007 / Materials Reliability Program : Advanced FEA Evaluation of Growth of Postulated Circumferential PWSCC Flaws in Pressurizer Nozzle Dissimilar Metal Welds (MRP-216): Evaluations Specific to Nine Subject Plants / EPRI, Palo Alto, CA : 1015383 ~
4. [학술대회논문] - M.W. Kim / 2009 / Effect of Curve Fitting of Residual Stress on Crack Growth Analysis in Alloy 82/182 Repair Weld of a Nozzle / Proceedings on 2009 KPVP Annual Conference
5. [학술지(정기간행물)] - 박응준 / 2003 / 용접잔류응력장을 전파하는 피로균열 개구거동의 유한요소법을 이용한 해석적 검토 / 대한용접접합학회지 21 (6) : 9 ~ 83
2. [기타자료] - / 2004 / Materials Reliability Program : Crack Growth Rates for Evaluating Primary Water Stress Corrosion Cracking (PWSCC) of Alloy 82, 182, and 132 Welds (MRP-115) / EPRI. Palo Alto, CA : 1006696 ~
3. [기타자료] - / 2007 / Materials Reliability Program : Advanced FEA Evaluation of Growth of Postulated Circumferential PWSCC Flaws in Pressurizer Nozzle Dissimilar Metal Welds (MRP-216): Evaluations Specific to Nine Subject Plants / EPRI, Palo Alto, CA : 1015383 ~
4. [학술대회논문] - M.W. Kim / 2009 / Effect of Curve Fitting of Residual Stress on Crack Growth Analysis in Alloy 82/182 Repair Weld of a Nozzle / Proceedings on 2009 KPVP Annual Conference
5. [학술지(정기간행물)] - 박응준 / 2003 / 용접잔류응력장을 전파하는 피로균열 개구거동의 유한요소법을 이용한 해석적 검토 / 대한용접접합학회지 21 (6) : 9 ~ 83
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UCI(KEPA) : I410-ECN-0101-2012-581-004485757