Long-term investigations of metal seals for storage casks of radioctive materials
- The Bundesanstalt für Materialforschung und –prüfung (BAM) is a federal institute for materials research and testing in Germany and has been involved in the qualification and safety evaluation procedures of metal seals from the early beginning of the interim storage licensing procedures for radioactive materials, stored in dual purpose casks. Regarding this subject, BAM investigates the long-term behavior of metal seals under the influence of temperature using experimental data and analytical approaches. The development of numerical models is in progress as well. Systematic experimental investigations performed by BAM indicate a continuous decrease of the remaining seal force and the usable resilience considering the leak tightness. Hence, there is a fundamental interest of describing time and temperature dependency to gain predictable values for the long-term behavior and to achieve reliable results with help of short-term tests. The paper gives an overview about the sealingThe Bundesanstalt für Materialforschung und –prüfung (BAM) is a federal institute for materials research and testing in Germany and has been involved in the qualification and safety evaluation procedures of metal seals from the early beginning of the interim storage licensing procedures for radioactive materials, stored in dual purpose casks. Regarding this subject, BAM investigates the long-term behavior of metal seals under the influence of temperature using experimental data and analytical approaches. The development of numerical models is in progress as well. Systematic experimental investigations performed by BAM indicate a continuous decrease of the remaining seal force and the usable resilience considering the leak tightness. Hence, there is a fundamental interest of describing time and temperature dependency to gain predictable values for the long-term behavior and to achieve reliable results with help of short-term tests. The paper gives an overview about the sealing principle, test program and test results of metal seals of the type HELICOFLEX® HN200. The aging effect, respectively the long-term behavior in dependency of time and temperature, are introduced for two different outer liner materials, aluminum and silver.…
Autor*innen: | Sven Nagelschmidt, Ulrich Probst, Holger Völzke, Dietmar Wolff |
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Dokumenttyp: | Beitrag zu einem Tagungsband |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Pressure Vessels and Piping Conference (PVP) - ASME Conference Proceedings |
Jahr der Erstveröffentlichung: | 2016 |
Herausgeber (Institution): | American society of mechanical engineers (ASME) |
Jahrgang/Band: | 7 |
Erste Seite: | 63596-1 |
Letzte Seite: | 63596-5 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Long-Term Behaviour; Metal Gasket; Metal Seal |
Veranstaltung: | PVP ASME Conference |
Veranstaltungsort: | Vancouver, Canada |
Beginndatum der Veranstaltung: | 17.07.2016 |
Enddatum der Veranstaltung: | 21.07.2016 |
ISBN: | 978-0-7918-5045-9 |
Verfügbarkeit des Dokuments: | Datei im Netzwerk der BAM verfügbar ("Closed Access") |
Datum der Freischaltung: | 30.11.2016 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 07.04.2017 |