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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 895 - 906 (12page)
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초록· 키워드
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Background: Mitigation of primary water stress corrosion cracking (PWSCC) is a significantissue in the nuclear industry. Advanced nickel-based alloys with lower susceptibility havebeen adopted, although they do not seem to be entirely immune from PWSCC duringnormal operation. With regard to structural integrity assessments of the relevant components,an accurate evaluation of crack growth rate (CGR) is important.
Methods: For the present study, the extended finite element method was adopted fromamong diverse meshless methods because of its advantages in arbitrary crack analysis. Auser-subroutine based on the strain rate damage model was developed and incorporatedinto the crack growth evaluation.
Results: The proposed method was verified by using the well-known Alloy 600 material witha reference CGR curve. The analyzed CGR curve of the alternative Alloy 690 material wasthen newly estimated by applying the proven method over a practical range of stress intensityfactors.
Conclusion: Reliable CGR curves were obtained without complex environmental facilities ora high degree of experimental effort. The proposed method may be used to assess thePWSCC resistance of nuclear components subjected to high residual stresses such as thoseresulting from dissimilar metal welding parts.
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참고문헌 (18)
참고문헌 신청
/ 2013 / ABAQUS User's Manual, ver. 6e13 / Dassault Systemes
ASTM E647 / 2005 / Standard Test Method for Measurement of Fatigue Crack Growth Rates / ASTM E647, Annual Book for ASTM Standards
B. Alexandreanu / 2008 / The stress corrosion cracking behavior of alloys 690 and 152 weld in a PWR environment / Proceedings of ASME PVP Conference : 153 ~ 163
J.M. Melenk / 1996 / The partition of unity finite element method: basic theory and applications / Comput. Methods Appl. Mech. Eng 139 : 289 ~ 314
K. Arioka / 2011 / Dependence of stress corrosion cracking of Alloy 690 on temperature, cold work and carbide precipitationdrole of diffusion of vacancies at crack tip / Corr
ASTM E647 / 2005 / Standard Test Method for Measurement of Fatigue Crack Growth Rates / ASTM E647, Annual Book for ASTM Standards
B. Alexandreanu / 2008 / The stress corrosion cracking behavior of alloys 690 and 152 weld in a PWR environment / Proceedings of ASME PVP Conference : 153 ~ 163
J.M. Melenk / 1996 / The partition of unity finite element method: basic theory and applications / Comput. Methods Appl. Mech. Eng 139 : 289 ~ 314
K. Arioka / 2011 / Dependence of stress corrosion cracking of Alloy 690 on temperature, cold work and carbide precipitationdrole of diffusion of vacancies at crack tip / Corr
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