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Structural Engineering and Mechanics Volume 5, Number 2, March 1997 , pages 149-165 DOI: https://doi.org/10.12989/sem.1997.5.2.149 |
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Axial response of PWR fuel assemblies for earthquake and pipe break excitations |
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Jhung MJ
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| Abstract | ||
| A dynamic time-history analysis of the coupled internals and core in the vertical direction is performed as a part of the fuel assembly qualification program. To reflect the interaction between the fuel rods and grid cage, friction element is developed and is implemented. Also derived here is a method to calculate a hydraulic force on the reactor internals due to pipe break. Peak responses are obtained for the excitations induced from earthquake and pipe break The dynamic responses such as fuel assembly axial forces and lift-off characteristics are investigated. | ||
| Key Words | ||
| reactor internals, fuel assembly, pressurized water reactor, pipe break, earthquake | ||
| Address | ||
| Jhung MJ, KOREA INST NUCL SAFETY,MECH ENGN GRP,TAEJON 305338,SOUTH KOREA | ||