Low Cycle Fatigue Analysis of Storage Canisters Due to Expansion of Contents

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Qualification of storage canisters due to the expansion behavior of plutonium metal during phase transitions requires a combined experimental and analytical modeling effort. Tests were conducted at Los Alamos National Laboratory to define the expansion behavior of plutonium metal during the alpha-beta-gamma phase transitions. Test results showed that the expansion is anisotropic due to the container wall constraint. The plutonium expansion parameters were calculated from test data, and combined with a finite element analysis to determine the stress state of the storage canisters. Strain values were computed and compared with the ASME Code secondary and peak stress limits. Since the ... continued below

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Flanders, H.E. Jr. December 12, 2003.

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Qualification of storage canisters due to the expansion behavior of plutonium metal during phase transitions requires a combined experimental and analytical modeling effort. Tests were conducted at Los Alamos National Laboratory to define the expansion behavior of plutonium metal during the alpha-beta-gamma phase transitions. Test results showed that the expansion is anisotropic due to the container wall constraint. The plutonium expansion parameters were calculated from test data, and combined with a finite element analysis to determine the stress state of the storage canisters. Strain values were computed and compared with the ASME Code secondary and peak stress limits. Since the applied expansion strain exceeds the strain of 10 cycles in the ASME Code design fatigue curve, the ASME Code design fatigue curve was extended to values below 10 cycles.

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  • 2004 ASME/JSME Pressure Vessels & Piping Conference, San Diego, CA (US), 07/25/2004--07/29/2004

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  • Report No.: WSRC-MS-2003-00845
  • Grant Number: AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 820403
  • Archival Resource Key: ark:/67531/metadc736070

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  • December 12, 2003

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  • Oct. 18, 2015, 6:40 p.m.

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  • May 5, 2016, 2:07 p.m.

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Flanders, H.E. Jr. Low Cycle Fatigue Analysis of Storage Canisters Due to Expansion of Contents, article, December 12, 2003; South Carolina. (digital.library.unt.edu/ark:/67531/metadc736070/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.