Efficient Failure Probability Calculations and Modeling Interface Debonding in TRISO Particles with BISON

Technical Report · Thu Sep 30 00:00:00 EDT 2021

DOI:https://doi.org/10.2172/1825512· OSTI ID:1825512

Jiang, Wen  ^[1]; Singh, Gyanender ^[1]; Hales, Jason D. ^[1]; Toptan, Aysenur ^[1]; Spencer, Benjamin W. ^[1]; Novascone, Stephen R. ^[1]

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1. Idaho National Lab. (INL), Idaho Falls, ID (United States)

This document constitutes completion of the NEAMS milestone, which is titled Demonstrate efficiency improvements in TRISO failure probability calculations and the effect of debonding on fission product transport in TRISO fuel particles in Bison. In this report we present the development of the following: (1) the anisotropic elasticity model of pyrolytic carbon and extended material models using the local coordinate system for aspherical particle geometry; (2) a capability of modeling interface debonding in TRISO particles; and (3) an efficient high-fidelity approach to calculate the failure probability of TRISO particles. Benchmark problems and AGR-2 tests are used to verify the models and demonstrate these new capabilities.

• Research Organization: Idaho National Lab. (INL), Idaho Falls, ID (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1825512
• Report Number(s): INL/EXT-21-64589-Rev.000; TRN: US2301753
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
97 MATHEMATICS AND COMPUTING
TRISO
Debonding
BISON
Direct integration approach
Anisotropy