According to the seismic risk assessment results presented in the Final Safety Analysis Report (FSAR) for a nuclear power plant in Taiwan, the failure of Residual Heat Removal (RHR) piping system occurs in both of the two accident sequences with the highest contributions for core damage. The seismic performance of RHR piping system depends on the capacity of its components, such as supports, flanged joints and reducers. For the need of seismic response-history analysis of RHR piping systems, we developed detailed numerical models of flanged joint and reducer using finite element analysis software (ABAQUS and SAP2000). The proposed finite element models were verified by the experimental results. The pure bending tests with four-point cyclic loading were conducted for sample flanged joint and reducer to investigate their mechanical behaviors. The displacement and rotation responses identified from the tests are in good agreement with the results of numerical analysis. A preliminary simplified model of flanged joints was also proposed in this study to improve the efficiency of numerical analysis for RHR piping system.
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ASME 2014 Pressure Vessels and Piping Conference
July 20–24, 2014
Anaheim, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4607-0
PROCEEDINGS PAPER
Cyclic Loading Test and Numerical Analysis of Flange Joint and Reducer of RHR Piping Systems Available to Purchase
Zih-Yu Lai,
Zih-Yu Lai
National Center on Earthquake Engineering, Taipei, Taiwan
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Yan-Fang Liu,
Yan-Fang Liu
National Taiwan University, Taipei, Taiwan
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Ching-Ching Yu,
Ching-Ching Yu
National Taiwan University, Taipei, Taiwan
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Juin-Fu Chai,
Juin-Fu Chai
National Center on Earthquake Engineering, Taipei, Taiwan
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Fan-Ru Lin,
Fan-Ru Lin
National Center on Earthquake Engineering, Taipei, Taiwan
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Wen-Fang Wu,
Wen-Fang Wu
National Taiwan University, Taipei, Taiwan
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Yin-Nan Huang,
Yin-Nan Huang
National Taiwan University, Taipei, Taiwan
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Ming-Yi Shen
Ming-Yi Shen
National Center on Earthquake Engineering, Taipei, Taiwan
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Zih-Yu Lai
National Center on Earthquake Engineering, Taipei, Taiwan
Yan-Fang Liu
National Taiwan University, Taipei, Taiwan
Ching-Ching Yu
National Taiwan University, Taipei, Taiwan
Juin-Fu Chai
National Center on Earthquake Engineering, Taipei, Taiwan
Fan-Ru Lin
National Center on Earthquake Engineering, Taipei, Taiwan
Wen-Fang Wu
National Taiwan University, Taipei, Taiwan
Yin-Nan Huang
National Taiwan University, Taipei, Taiwan
Ming-Yi Shen
National Center on Earthquake Engineering, Taipei, Taiwan
Paper No:
PVP2014-29112, V008T08A026; 10 pages
Published Online:
November 18, 2014
Citation
Lai, Z, Liu, Y, Yu, C, Chai, J, Lin, F, Wu, W, Huang, Y, & Shen, M. "Cyclic Loading Test and Numerical Analysis of Flange Joint and Reducer of RHR Piping Systems." Proceedings of the ASME 2014 Pressure Vessels and Piping Conference. Volume 8: Seismic Engineering. Anaheim, California, USA. July 20–24, 2014. V008T08A026. ASME. https://doi.org/10.1115/PVP2014-29112
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