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Title: Report on Design and Failure Limits of SiC/SiC and FeCrAl ATF Cladding Concepts under RIA

Abstract

Pellet-cladding mechanical interaction (PCMI) is a possible failure scenario during a postulated reactivity-initiated accident (RIA). This report summarizes fiscal year 2018 research activities that were undertaken to evaluate the PCMI-like hoop strain–driven mechanical response of accident tolerant fuel cladding candidates of silicon carbide fiber/silicon carbide matrix composite (SiC/SiC) and iron–chromium–aluminum (FeCrAl) tube specimens. To achieve various RIA-like conditions, the modified-burst test device developed during fiscal years 2016 and 2017 was used. A heating capability was also added to the system for high-temperature testing of FeCrAl samples.The first section of this report assesses the accuracy of the two-dimensional digital image correlation calculated strain values for tube samples. The speckle patterns are computer generated in a two-dimensional plane, and the generated images were wrapped into a cylindrical surface for the validation using digital image correlation technique on curved geometries. Subsequent sections address the failure behavior of SiC/SiC composites and long-term heat treated and as-drawn FeCrAl alloy tubes at various strain rates relevant to the postulated RIA events. In the last part, the effect of possible design parameters of failure strain and the strain rate are discussed for SiC/SiC composites and FeCrAl alloys during the PCMI phase of RIA.Future work is planned tomore » develop and design safety tests for accident tolerant fuel cladding candidates and the advanced fuel forms with respect to their transient responses. A broader perspective on the mechanical behavior of the unirradiated and irradiated accident tolerant fuel cladding candidates will be developed using the modified-burst test and other mechanical tests.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1461053
Report Number(s):
ORNL/LTR-2018/521
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 42 ENGINEERING

Citation Formats

Cinbiz, Mahmut N., Brown, Nick, Lowden, Rick R., Gussev, Maxim N., Linton, Kory D., and Terrani, Kurt A. Report on Design and Failure Limits of SiC/SiC and FeCrAl ATF Cladding Concepts under RIA. United States: N. p., 2018. Web. doi:10.2172/1461053.
Cinbiz, Mahmut N., Brown, Nick, Lowden, Rick R., Gussev, Maxim N., Linton, Kory D., & Terrani, Kurt A. Report on Design and Failure Limits of SiC/SiC and FeCrAl ATF Cladding Concepts under RIA. United States. https://doi.org/10.2172/1461053
Cinbiz, Mahmut N., Brown, Nick, Lowden, Rick R., Gussev, Maxim N., Linton, Kory D., and Terrani, Kurt A. Sun . "Report on Design and Failure Limits of SiC/SiC and FeCrAl ATF Cladding Concepts under RIA". United States. https://doi.org/10.2172/1461053. https://www.osti.gov/servlets/purl/1461053.
@article{osti_1461053,
title = {Report on Design and Failure Limits of SiC/SiC and FeCrAl ATF Cladding Concepts under RIA},
author = {Cinbiz, Mahmut N. and Brown, Nick and Lowden, Rick R. and Gussev, Maxim N. and Linton, Kory D. and Terrani, Kurt A.},
abstractNote = {Pellet-cladding mechanical interaction (PCMI) is a possible failure scenario during a postulated reactivity-initiated accident (RIA). This report summarizes fiscal year 2018 research activities that were undertaken to evaluate the PCMI-like hoop strain–driven mechanical response of accident tolerant fuel cladding candidates of silicon carbide fiber/silicon carbide matrix composite (SiC/SiC) and iron–chromium–aluminum (FeCrAl) tube specimens. To achieve various RIA-like conditions, the modified-burst test device developed during fiscal years 2016 and 2017 was used. A heating capability was also added to the system for high-temperature testing of FeCrAl samples.The first section of this report assesses the accuracy of the two-dimensional digital image correlation calculated strain values for tube samples. The speckle patterns are computer generated in a two-dimensional plane, and the generated images were wrapped into a cylindrical surface for the validation using digital image correlation technique on curved geometries. Subsequent sections address the failure behavior of SiC/SiC composites and long-term heat treated and as-drawn FeCrAl alloy tubes at various strain rates relevant to the postulated RIA events. In the last part, the effect of possible design parameters of failure strain and the strain rate are discussed for SiC/SiC composites and FeCrAl alloys during the PCMI phase of RIA.Future work is planned to develop and design safety tests for accident tolerant fuel cladding candidates and the advanced fuel forms with respect to their transient responses. A broader perspective on the mechanical behavior of the unirradiated and irradiated accident tolerant fuel cladding candidates will be developed using the modified-burst test and other mechanical tests.},
doi = {10.2172/1461053},
url = {https://www.osti.gov/biblio/1461053}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}