典型文献
Modeling of irradiation-induced damage and failure behaviors of fuel foil/cladding interface in UMo/Zr monolithic fuel plates
文献摘要：
Models to describe the damage and fracture behaviors of the interface between the fuel foil and clad-ding in UMo/Zr monolithic fuel plates were established and numerically implemented.The effects of the interfacial cohesive strength and cohesive energy on the irradiation-induced thermal-mechanical behaviors of fuel plates were investigated.The results indicated that for heterogeneously irradiated fuel plates:(1)interfacial damage and failure were predicted to be initiated near the fuel foil corner with higher fission densities,accompanied by the formation of a large gap after interface failure,which was consistent with some experimental observations;high tensile stresses in the fuel foil occurred near the edges of the failed interface,attributed to through-thickness cracking of the fuel foil,as found in some post-irradiation examinations;(2)the cohesive strength and cohesive energy of the interface both influenced the in-pile evolution behaviors of fuel plates;a lower cohesive strength or cohesive energy resulted in faster interfacial damage;(3)after interface fracture,the thickness of the whole plate increased to a greater degree(by～20％)than that of the samples without interfacial damage,which was attributed to the locally enhanced Mises stresses and the nearby creep deformations around the cracked interface.This study provided a theoretical basis for assessing failure in fuel elements.
文献关键词：
中图分类号：
作者姓名：
Xiang-Zhe Kong;Xiao-Bin Jian;Feng Yan;Chang-Bing Tang;Zi-Xuan Guo;Shu-Rong Ding;Yuan-Ming Li;Chun-Yu Yin
作者机构：
Institute of Mechanics and Computational Engineering,Department of Aeronautics and Astronautics,Fudan University,Shanghai 200433,China;Science and Technology On Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu 610213,China
文献出处：
引用格式：
[1]Xiang-Zhe Kong;Xiao-Bin Jian;Feng Yan;Chang-Bing Tang;Zi-Xuan Guo;Shu-Rong Ding;Yuan-Ming Li;Chun-Yu Yin-.Modeling of irradiation-induced damage and failure behaviors of fuel foil/cladding interface in UMo/Zr monolithic fuel plates)[J].核技术（英文版）,2022(05):16-29
A类：
UMo
B类：
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AB值：
0.465616
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