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Fracture Toughness Properties of Savannah River Site Storage Tank ASTM A285 Low Carbon Steel

[+] Author Affiliations
K. H. Subramanian, A. J. Duncan, R. L. Sindelar

Westinghouse Savannah River Company, Aiken, SC

Paper No. PVP2002-1119, pp. 157-163; 7 pages
doi:10.1115/PVP2002-1119
From:
  • ASME 2002 Pressure Vessels and Piping Conference
  • Computational Weld Mechanics, Constraint, and Weld Fracture
  • Vancouver, BC, Canada, August 5–9, 2002
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-1945-0
  • Copyright © 2002 by ASME

abstract

A materials test program was developed to measure mechanical properties of ASTM A285 Grade B low carbon steel for application to structural and flaw stability analysis of storage tanks at the Department of Energy (DOE) Savannah River Site (SRS). Under this plan, fracture toughness and tensile testing are being performed at conditions that are representative of storage tank conditions on steels that span compositions within ASTM A285 specifications. The testing is being done within the framework of a statistical test matrix and the data collected will be used to develop a predictive model for materials properties. The results presented herein are limited to a subset of data comparing for comparison of a recent vintage steel versus an older steel for fracture resistance behavior. These preliminary results indicate that dynamic loading rates result in a greater increase in the fracture toughness response in the case of the recent vintage steels of lower carbon content when compared to the archival heat of high carbon content. In addition, ductile tearing in the archival, high carbon steel was more likely to be interrupted by cleavage fracture at lower fracture energies than the modern, low carbon steel.

Copyright © 2002 by ASME

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