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Considerations of the competent authority concerning the assessment of a brittle fracture safe ductile cast iron (DCI) cask design

Journal Article:

Abstract

The assessment of a brittle fracture safe ductile cast iron (DCI) cask design must ensure the integrity of transport and storage casks for radioactive materials under the most damaging accident conditions. Based upon the determination of the mechanical impact behaviour and stress analysis, for cask design sufficient material properties like fracture toughness must be ensured in series cast production by accepted quality assurance measures. The current BAM safety assessment concept has been established in the 1980s and is mainly based upon approval design tests with large cylindrical CASTOR and TN casks equipped with impact limiters. This concept needs only a reduced fracture mechanics analysis because of stress limitation at a level of approximately 50% of materials yield strength and appropriate quality assurance measures which ensure only tolerable crack-like defects within the cask structure in connection with guaranteed fracture toughness down to -40{sup o}C. In other cases a detailed fracture mechanics analysis might be necessary because of higher stress levels and cask behaviour under dynamic conditions. This paper presents actual considerations and results at BAM from drop tests with new cask designs such as cubically shaped cast iron containers and the POLLUX cask designed for transport, interim storage and final disposal  More>>
Authors:
Voelzke, H; Roedel, R; Zeisler, P; Droste, B [1] 
  1. Bundesanstalt fuer Materialforschung und -pruefung, Berlin (Germany)
Publication Date:
Sep 01, 1995
Product Type:
Journal Article
Report Number:
CONF-9410134-
Reference Number:
SCA: 420204; PA: AIX-26:063425; EDB-95:131236; SN: 95001458046
Resource Relation:
Journal Name: International Journal of Radioactive Materials Transport; Journal Volume: 6; Journal Issue: 2-3; Conference: Brittle fracture safety assessment, Krefeld (Germany), 27-28 Oct 1994; Other Information: PBD: 1995
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; CASKS; FRACTURE PROPERTIES; CAST IRON; DESIGN; FRACTURE MECHANICS; RADIOACTIVE MATERIALS; SAFETY; STORAGE; TESTING; TRANSPORT
OSTI ID:
100503
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: IJRTER; ISSN 0957-476X; TRN: GB9501341063425
Submitting Site:
GBN
Size:
pp. 121-126
Announcement Date:
Oct 04, 1995

Journal Article:

Citation Formats

Voelzke, H, Roedel, R, Zeisler, P, and Droste, B. Considerations of the competent authority concerning the assessment of a brittle fracture safe ductile cast iron (DCI) cask design. United Kingdom: N. p., 1995. Web.
Voelzke, H, Roedel, R, Zeisler, P, & Droste, B. Considerations of the competent authority concerning the assessment of a brittle fracture safe ductile cast iron (DCI) cask design. United Kingdom.
Voelzke, H, Roedel, R, Zeisler, P, and Droste, B. 1995. "Considerations of the competent authority concerning the assessment of a brittle fracture safe ductile cast iron (DCI) cask design." United Kingdom.
@misc{etde_100503,
title = {Considerations of the competent authority concerning the assessment of a brittle fracture safe ductile cast iron (DCI) cask design}
author = {Voelzke, H, Roedel, R, Zeisler, P, and Droste, B}
abstractNote = {The assessment of a brittle fracture safe ductile cast iron (DCI) cask design must ensure the integrity of transport and storage casks for radioactive materials under the most damaging accident conditions. Based upon the determination of the mechanical impact behaviour and stress analysis, for cask design sufficient material properties like fracture toughness must be ensured in series cast production by accepted quality assurance measures. The current BAM safety assessment concept has been established in the 1980s and is mainly based upon approval design tests with large cylindrical CASTOR and TN casks equipped with impact limiters. This concept needs only a reduced fracture mechanics analysis because of stress limitation at a level of approximately 50% of materials yield strength and appropriate quality assurance measures which ensure only tolerable crack-like defects within the cask structure in connection with guaranteed fracture toughness down to -40{sup o}C. In other cases a detailed fracture mechanics analysis might be necessary because of higher stress levels and cask behaviour under dynamic conditions. This paper presents actual considerations and results at BAM from drop tests with new cask designs such as cubically shaped cast iron containers and the POLLUX cask designed for transport, interim storage and final disposal of spent fuel. (author).}
journal = {International Journal of Radioactive Materials Transport}
issue = {2-3}
volume = {6}
journal type = {AC}
place = {United Kingdom}
year = {1995}
month = {Sep}
}