Thermal-mechanical coupling behavior analysis on metal-matrix dispersed plate-type fuel

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• 作者：Yangbin Deng^a ; Yingwei Wu^a ; Dalin Zhang^a ; Qing Lu^b ; Wenxi Tian^a ; Suizheng Qiu^a ; G.H. Su^a ; ^{ghsu@mail.xjtu.edu.cn}
• 关键词：Dispersed plate-type fuel ; Thermal-mechanical analysis ; FROBA-PLATEs code ; Bending and torsion
• 刊名：Progress in Nuclear Energy
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：95
• 期：Complete
• 页码：8-22
• 全文大小：2094 K
• 卷排序：95

文摘

In this study, according to the structure and material characteristics of the metal-matrix dispersed plate-type fuel assembly, a series of mathematical and physical models were established, including thermal-hydraulic analysis, stress-strain calculation, bending and torsion calculation and other auxiliary models. Based on these models, a thermal-mechanical coupling analysis scheme was designed and a fuel behavior analysis code FROBA-PLATEs was independently developed. The accuracy and reliability of the code FROBA-PLATEs was validated by the single-module validation method. The validated code was used to perform the thermal-mechanical behavior simulation of a hypothetical metal-matrix dispersed plate-type fuel assembly. Significant parameters, such as flow distribution, temperature profile and stress-strain profile, were obtained. In addition, some important thermal-mechanical phenomena, including the asymmetric heat transfer of the edge plate, the bending of side panel of and the torsion of the whole assembly, were simulated and evaluated.