Abstract
A comprehensive effort is underway at Los Alamos National Laboratory to understand the causes and mechanisms behind pellet failure due to cracking during the production of238PuO2 heat sources. To this end, the PUMA (Plutonium Modeling and Assessment) code is being developed based on the MOOSE framework. Concurrent with PUMA model development is an experimental campaign using CeO2 surrogate material which seeks to measure and understand the relevant material properties and behavior for incorporation in PUMA. The synergistic nature of this approach has led to a rapid increase in understanding of many of the fundamental mechanisms important to pellet fracture. These surrogate studies will be used to inform future studies using non-surrogate PuO2 materials.
Original language | English |
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Title of host publication | Nuclear and Emerging Technologies for Space, NETS 2018 |
Publisher | American Nuclear Society |
Pages | 352-359 |
Number of pages | 8 |
ISBN (Print) | 9781510859609 |
State | Published - 2016 |
Externally published | Yes |
Event | Nuclear and Emerging Technologies for Space, NETS 2018 - Las Vegas, United States Duration: Feb 26 2018 → Mar 1 2018 |
Publication series
Name | Nuclear and Emerging Technologies for Space, NETS 2018 |
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Conference
Conference | Nuclear and Emerging Technologies for Space, NETS 2018 |
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Country/Territory | United States |
City | Las Vegas |
Period | 02/26/18 → 03/1/18 |
Funding
This manuscript has been authored by UT-Battelle, LLC and the University of Tennessee under Contract DE-AC05-OR222725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally funded research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). The US Department of Energy Office of Nuclear Energy Nuclear Facility Operations (NE-3) and the NASA Science Mission Directorate sponsored this work. This manuscript was authored by UT-Battelle, LLC, under contract no. DE-AC05-00OR22725 with the US Department of Energy. Research presented in this paper was supported by the Laboratory Directed Research and Development program of Los Alamos National Laboratory under project number 20170531ER.