Finite Element Based Stress Analysis of Graphite Component in High Temperature Gas Cooled Reactor Core Using Linear and Nonlinear Irradiation Creep Models

Journal Article · Thu Jan 01 00:00:00 EST 2015 · Nuclear Engineering and Design

DOI:https://doi.org/10.1016/j.nucengdes.2015.05.016· OSTI ID:1237954

Mohanty, Subhasish; Majumdar, Saurindranath

Irradiation creep plays a major role in the structural integrity of the graphite components in high temperature gas cooled reactors. Finite element procedures combined with a suitable irradiation creep model can be used to simulate the time-integrated structural integrity of complex shapes, such as the reactor core graphite reflector and fuel bricks. In the present work a comparative study was undertaken to understand the effect of linear and nonlinear irradiation creep on results of finite element based stress analysis. Numerical results were generated through finite element simulations of a typical graphite reflector.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: Nuclear Regulatory Commission (NRC)
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1237954
• Journal Information: Nuclear Engineering and Design, Vol. 292; ISSN 0029-5493
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

High temperature gas cooled reactor
Finite element based stress analysis
H-451 graphite
Irradiation creep model
Graphite reflector stress analysis