Development of inelastic constitutive model for austenitic stainless steel for design use

被引:7
|
作者
Takahashi, Yukio [1 ]
Shibamoto, Hiroshi [2 ]
Inoue, Kazuhiko [2 ]
机构
[1] Cent Res Inst Elect Power Ind, Mat Sci Res Lab, Tokyo 2018511, Japan
[2] Japan Atom Power Co, Tokyo, Japan
关键词
D O I
10.1016/j.nucengdes.2006.09.016
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
To prevent creep-fatigue failure or excessive deformation in high-temperature components of fast reactor plants, accurate estimation of inelastic deformation is essential. In performing inelastic analysis, employment of constitutive models, which can precisely reproduce inelastic deformation of the material is of critical importance. The authors have been engaged in the development of inelastic constitutive model for the use in structural design assessment of liquid metal-cooled fast reactor plants. Various improvements were made on the nonlinear hardening model proposed by Ohno and Wang, placing an emphasis on capability to simulate inelastic deformation behavior of austenitic stainless steels, under regular or irregular cyclic loading possibly with temperature variation and hold time. It was demonstrated that the model can simulate the inelastic deformation behavior under various loading conditions with a sufficient accuracy. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:368 / 379
页数:12
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