대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2007년도 춘계학술대회A
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- Pages.1803-1806
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- 2007
선용접방법으로 제작된 $16{\times}16$ 최적화 H형 스프링 지지격자에 대한 진자식충격시험
Pendulum Impact Tests for 16by16 Through Welded Spacer Grids with Optimized H type Springs
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Kim, J.Y.
(KAERI) ;
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Yoon, K.H.
(KAERI) ;
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Song, K.N.
(KAERI)
- 발행 : 2007.05.30
초록
The General roles of a spacer grid(SG) are providing a lateral and vertical support for fuel rods, promoting a mixing of coolant and keeping guide tubes straight so as not to impede a control rod insertion under any normal or accidental conditions. To evaluate the impact characteristics of a SG such as impact velocity, critical buckling strength and duration time, a few types of impact tests for SGs have been conducted. In a previous study, a new welding method, a through-welding method, was proposed to increase critical buckling strength of a SG without any design change or material change and was verified by impact tests with