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Impact energy absorbing effect by the buckling of impact limiter's case of radioactive material transport cask
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 Title & Authors
Impact energy absorbing effect by the buckling of impact limiter's case of radioactive material transport cask
Ku, Jeong-Hoe; Seo, Gi-Seok; Min, Deok-Gi; Kim, Yeong-Jin;
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 Abstract
The energy-absorbing characteristic of impact limiters affects the cask design so significantly that it should be evaluated as accurate as possible. The objective of this study is to find the influence of the impact limiter's steel case and gusset plates which enclose the shock absorbing cellular material on the impact energy absorption. The influence of impact limiter's steel case and gusset plate stiffeners on the impact energy absorption behavior under horizontal drop impact was evaluated for a radioactive isotope transport cask. Though the impact limiters mitigate the impact damage of the cask, the impact limiter's steel case and gusset plate stiffeners increase the impact force so significantly that should be designed as soft as possible. The impact analysis without considering impact limiter's steel case and gusset plates stiffener gives non-conservative results, so the stiffness of the steel case and gusset plates should be considered in impact analysis.
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 Language
Korean
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