In thermal shock the thermal stresses are produced by transient temperature gradients of a sudden nature. The thermal stresses are determined by the temperature distribution at any instant during the time of shock. The possibility of thermal shock on the N.S. Savannah containment vessel is investigated when it is subjected to an internal incident releasing primary fluid (steam or water) and simultaneously cooled on the external surface by reactor compartment flooding. Thermal shock conditions were established for "a worst possible case" since the exact velocity, temperature, and shock duration are unknown. The vessel shell is composed of a ductile material and can withstand appreciable strain before rupture. The calculated compressive thermal stresses as a result of a single cycle thermal condition do not exceed the minimum yield strength of 38,000 psi which exists at the assumed metal temperature of 365 F.

  • Supplemental Notes:
    • This document is available for review at the Department of Commerce Library, Main Commerce Building, Washington, D.C., under reference number ESI-26-1.
  • Corporate Authors:

    Ebasco Services Incorporated

    Two Rector Street
    New York, NY  United States 

    States Marine Lines, Incorporated

  • Publication Date: 1961-2

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 23 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00026385
  • Record Type: Publication
  • Source Agency: Maritime Administration
  • Report/Paper Numbers: ESI-26-1
  • Contract Numbers: MA-1889
  • Files: TRIS, USDOT
  • Created Date: Feb 6 1973 12:00AM