Internal cask content collisions during drop test of transport casks for radioactive materials
| Autor: | Karsten Müller, Bernhard Droste, Thomas Quercetti, Viktor Ballheimer |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Packaging, Transport, Storage & Security of Radioactive Material. 24:75-82 |
| ISSN: | 1746-5109 1746-5095 |
| DOI: | 10.1179/1746510913y.0000000032 |
| Popis: | In transport casks for radioactive materials, significantly large axial and radial gaps between cask and internal content are often present because of certain specific geometrical dimensions of the content (e.g. spent fuel elements) or thermal reasons. The possibility of inner relative movement between content and cask will increase if the content is not fixed. During drop testing, these movements can lead to internal cask content collisions, causing significantly high loads on the cask components and the content itself. Especially in vertical drop test orientations onto a lid side of the cask, an internal collision induced by a delayed impact of the content onto the inner side of the lid can cause high stress peaks in the lid and the lid bolts with the risk of component failure as well as impairment of the leak tightness of the closure system. This paper reflects causes and effects of the phenomenon of internal impact on the basis of experimental results obtained from instrumented drop tests with transpo... |
| Databáze: | OpenAIRE |
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