Creep crack growth on spent fuel zircaloy cladding in interim storage

被引：3

作者：

Chao, C. K.

Chen, J. Q.

Yang, K. C.

Tseng, C. C.

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Mech Engn, Sect 4, Taipei 106, Taiwan

[2] Inst Nucl Energy Res, Nucl Fuels & Mat Div, Tao Yuan 32546, Taiwan

来源：

THEORETICAL AND APPLIED FRACTURE MECHANICS | 2007年 / 47卷 / 01期

关键词：

creep; strain energy density; crack growth rate; spent fuel Zircaloy cladding;

D O I：

10.1016/j.tafmec.2006.10.009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effect of creep failure mechanisms on the creep crack growth is examined on spent fuel Zircaloy cladding in interim storage. Based on the creep fracture mechanics parameter C* and the strain energy density criteria, the relationship between the creep crack growth rate and the fracture mechanics parameter C* is established theoretically. The effects of initial crack lengths and storage temperature profiles on cladding failure are discussed in detail. The results show that the initial crack length and the storage temperature profile play an important role in the interim dry storage. When the storage temperature remains at a constant temperature of 400 degrees C, it will be safe for the cladding which stores in the interim dry storage. The results presented in this study provide a reliable cladding integrity evaluation for spent fuel in the interim dry storage. (C) 2006 Elsevier Ltd. All rights reserved.

引用

页码：26 / 34

页数：9

共 14 条

[1]

CHAO CK, 1992, NUCL TECHNOL, V101, P202

[2]

DAUM RS, 2005, P 2005 WAT FUEL PERF

[3] CREEP CRACK-GROWTH IN TECHNICAL ALLOYS AT ELEVATED-TEMPERATURE - A REVIEW [J].