Modeling Interface Debonding in Coated Fuel Particles with BISON. (4th March 2022)

• Record Type: Journal Article
• Authors: Schappel, Daniel; Pastore, Giovanni; Terrani, Kurt A.
• Is Part Of: Nuclear science and engineering. Volume 196:Number 3(2022)
• Page Start: 276
• Page End: 284
• Publication Date: 2022-03-04
• Subjects: TRISO -- debonding -- silicon carbide pyrolytic carbon; Nuclear energy -- Periodicals; Nuclear engineering -- Periodicals; Nuclear energy; Nuclear engineering; Periodicals; 539.705
• DOI: 10.1080/00295639.2021.1955590
• Languages: English
• ISSNs: 0029-5639

Abstract

Abstract: This work introduces a meshed debonding model intended for use with tristructural isotropic (TRISO) fuel particles. The ability to better examine the potential effects of interface debonding between the coating layers will enable a host of investigations of the stress state when complex loading and interactions between coated fuel particles are taking place. In this work, the debonding model is discussed in detail. Then, simulations are presented to show the capabilities and limitations of the model. First, a traditional high-temperature gas reactor TRISO particle is considered. Then, a TRISO particle in a graphitic matrix is analyzed, followed by a TRISO particle in a silicon carbide matrix.