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Title: A Model for Assessment of Failure of LWR Fuel during an RIA

Abstract

This paper presents a model for Pellet-Cladding Mechanical Interaction (PCMI) failure of LWR fuel during an RIA. The model uses the J-integral as a driving parameter to characterize the failure potential during PCMI. The model is implemented in the FRAPTRAN code and is validated by CABRI and NSRR simulated RIA test data. Simulation of PWR and BWR conditions are conducted by FRAPTRAN to evaluate the fuel failure potential using this model. Model validation and simulation results are compared with the strain-based failure model of PNNL and the SED/CSED model of EPRI. Our fracture mechanics model has good capability to differentiate failure from non-failure cases. The results reveal significant effects of power pulse width: a wider pulse width generally increases the threshold for fuel failure. However, this effect is less obvious for highly corroded cladding. (authors)

Authors:
;  [1]
  1. Center for Advanced Nuclear Energy Systems, Department of Nuclear Science and Engineering Massachusetts Institute of Technology, 77 Massachusetts Ave. Cambridge MA 02139 (United States)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
21229322
Resource Type:
Conference
Resource Relation:
Conference: 2007 LWR Fuel Performance Meeting / TopFuel 2007, San Francisco, CA (United States), 30 Sep - 3 Oct 2007; Other Information: Country of input: France; 18 refs; Related Information: In: Proceedings of the 2007 LWR Fuel Performance Meeting / TopFuel 2007 'Zero by 2010', 683 pages.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 42 ENGINEERING; BWR TYPE REACTORS; CLADDING; FAILURES; FRACTURE MECHANICS; FUEL PELLETS; NUCLEAR FUELS; PWR TYPE REACTORS; SIMULATION; STRAINS; VALIDATION

Citation Formats

Liu, Wenfeng, and Kazimi, Mujid S. A Model for Assessment of Failure of LWR Fuel during an RIA. United States: N. p., 2007. Web.
Liu, Wenfeng, & Kazimi, Mujid S. A Model for Assessment of Failure of LWR Fuel during an RIA. United States.
Liu, Wenfeng, and Kazimi, Mujid S. Sun . "A Model for Assessment of Failure of LWR Fuel during an RIA". United States.
@article{osti_21229322,
title = {A Model for Assessment of Failure of LWR Fuel during an RIA},
author = {Liu, Wenfeng and Kazimi, Mujid S},
abstractNote = {This paper presents a model for Pellet-Cladding Mechanical Interaction (PCMI) failure of LWR fuel during an RIA. The model uses the J-integral as a driving parameter to characterize the failure potential during PCMI. The model is implemented in the FRAPTRAN code and is validated by CABRI and NSRR simulated RIA test data. Simulation of PWR and BWR conditions are conducted by FRAPTRAN to evaluate the fuel failure potential using this model. Model validation and simulation results are compared with the strain-based failure model of PNNL and the SED/CSED model of EPRI. Our fracture mechanics model has good capability to differentiate failure from non-failure cases. The results reveal significant effects of power pulse width: a wider pulse width generally increases the threshold for fuel failure. However, this effect is less obvious for highly corroded cladding. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {7}
}

Conference:
Other availability
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