|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Mechanical Behavior and Degradation of Advanced Nuclear Fuel and Structural Materials
||Simulation of Shearing-induced Edge and Interfacial Fractures in U-10Mo Monolithic Fuel Plates
||Lei Li, Kyoo Sil Choi, Kenneth Johnson, Vineet Joshi, Ayoub Soulami
|On-Site Speaker (Planned)
Low-enriched uranium metal alloyed with 10wt% molybdenum (U-10Mo) is being developed and qualified by the NNSA to replace high-enriched uranium fuel due to its ability to meet the neutron flux requirements in U.S. high-performance research reactors. Shearing is a critical step in the U-10Mo monolithic fuel fabrication, which trims off redundant interfacially bonded materials to meet the target dimension. This work proposes a finite element model to predict the edge and interfacial fractures induced by the shearing process. The proposed model is demonstrated and validated on a HIP-bonded U-10Mo monolithic fuel plate, where the bonding strength and energy release rate of aluminum/aluminum interface for the cohesive model are determined using peel and shear testing data. A sensitivity study various shearing conditions on the fracture characteristic was conducted. Based on the simulation results, the optimal shearing parameters were determined and suggested to improve the interfacial fracture resistance during the shearing process.
||Modeling and Simulation, Mechanical Properties, Other