Applications of one-dimensional models in simplified inelastic analyses. [LMFBR]

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This paper presents an approximate inelastic analysis based on geometric simplification with emphasis on its applicability, modeling, and the method of defining the loading conditions. Two problems are investigated: a one-dimensional axisymmetric model of generalized plane strain thick-walled cylinder is applied to the primary sodium inlet nozzle of the Clinch River Breeder Reactor Intermediate Heat Exchanger (CRBRP-IHX), and a finite cylindrical shell is used to simulate the branch shell forging (Y) junction. The results are then compared with the available detailed inelastic analyses under cyclic loading conditions in terms of creep and fatigue damages and inelastic ratchetting strains per the ... continued below

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Pages: 39

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Kamal, S.A.; Chern, J.M. & Pai, D.H. January 1, 1980.

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Description

This paper presents an approximate inelastic analysis based on geometric simplification with emphasis on its applicability, modeling, and the method of defining the loading conditions. Two problems are investigated: a one-dimensional axisymmetric model of generalized plane strain thick-walled cylinder is applied to the primary sodium inlet nozzle of the Clinch River Breeder Reactor Intermediate Heat Exchanger (CRBRP-IHX), and a finite cylindrical shell is used to simulate the branch shell forging (Y) junction. The results are then compared with the available detailed inelastic analyses under cyclic loading conditions in terms of creep and fatigue damages and inelastic ratchetting strains per the ASME Code Case N-47 requirements. In both problems, the one-dimensional simulation is able to trace the detailed stress-strain response. The quantitative comparison is good for the nozzle, but less satisfactory for the Y junction. Refinements are suggested to further improve the simulation.

Physical Description

Pages: 39

Notes

NTIS, PC A03/MF A01.

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  • ASME century 2 emerging technology conference, San Francisco, CA, USA, 10 Aug 1980

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  • Report No.: CONF-800804-22
  • Grant Number: W-7405-ENG-26
  • Office of Scientific & Technical Information Report Number: 5061877
  • Archival Resource Key: ark:/67531/metadc1060461

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Office of Scientific & Technical Information Technical Reports

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  • January 1, 1980

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 29, 2018, 12:52 p.m.

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Kamal, S.A.; Chern, J.M. & Pai, D.H. Applications of one-dimensional models in simplified inelastic analyses. [LMFBR], article, January 1, 1980; United States. (digital.library.unt.edu/ark:/67531/metadc1060461/: accessed June 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.