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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.12
- 수록면
- 24 - 31 (8page)
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초록· 키워드
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In this paper, specimen tests with simulated large seismic conditions have been carried out to investigate damage characteristics such as structural deformation and crack initiation under seismic loading. The mechanical behavior of the specimens is predicted by numerical simulations and the strain-based damage evaluations are performed. Finite element analyses of the specimens under the simulated seismic loading at room and operating temperatures were carried out for low alloy steel and stainless steel materials. Peak strain amplitude, cumulative fatigue damage and cumulative strain limit damage are calculated considering the nature of cyclic loading. In all cases, the allowable damage criteria are exceeded at the time of observing cracks visually in the tests. Therefore, it is confirmed that the material behavior due to the large seismic loads can be predicted by the numerical method and the structural damage of the materials can be evaluated conservatively based on the strain criteria.
목차
ABSTRACT
1. 서론
2. 지진 모사 시편시험 요약
3. 손상평가를 위한 유한요소해석
4. 손상평가
5. 결론
참고문헌
참고문헌 (20)
참고문헌 신청
Saji, G / 2014 / Safety goals for seismic and tsunami risks: Lessons learned from the Fukushima Daiichi disaster / Nucl. Eng. Des 280:449~463
DeGrassi, G / 2005 / Seismic analysis of simplified piping systems for the NUPEC ultimate strength piping test program / U.S. Nuclear Regulatory Commission
DeGrassi, G / 2008 / Seismic analysis of large-scale piping systems for the JNES-NUPEC ultimate strength piping test program / Nuclear Regulatory Commission
Snow, S. D / 2009 / Strain-based acceptance criteria for energy-limited events / Proc. of ASME 2009 PVP Conference
Gupta, S. K / 2009 / Ratcheting-fatigue failure of pressurized elbows made of carbon steel / 20th Int. Conf. on Struct. Mech. in React. Tech. (SMiRT 20) :1~10
DeGrassi, G / 2005 / Seismic analysis of simplified piping systems for the NUPEC ultimate strength piping test program / U.S. Nuclear Regulatory Commission
DeGrassi, G / 2008 / Seismic analysis of large-scale piping systems for the JNES-NUPEC ultimate strength piping test program / Nuclear Regulatory Commission
Snow, S. D / 2009 / Strain-based acceptance criteria for energy-limited events / Proc. of ASME 2009 PVP Conference
Gupta, S. K / 2009 / Ratcheting-fatigue failure of pressurized elbows made of carbon steel / 20th Int. Conf. on Struct. Mech. in React. Tech. (SMiRT 20) :1~10
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