东南大学学报（自然科学版）2012，Vol.42Issue(6)：1175-1179,5.DOI:10.3969/j.issn.1001-0505.2012.06.028
循环荷载下奥氏体不锈钢的本构关系试验研究
Experimental study on constitutive relationship in austenitic stainless steel under cyclic loading
摘要
Abstract
In order to study the constitutive relationship of the stainless steel under cyclic loading, specimens of stainless steel S31608 were tested under a variety of loading systems. The stress-strain relationships of the stainless steel under monotonic and cyclic loading were studied. The cyclic skeleton curves were fitted by using the Ramberg-Osgood model. The parameters of the hardening model of cyclic plasticity were calibrated from test data and the tests were simulated by ABAQUS. The experimental results show that the hysteretic curves of stainless steel are plump, which indicates the excellent cyclic behavior. With the increase of the cyclic loops, stainless steel exhibits cyclic hardening behavior and the stress turns greater. The Ramberg-Osgood model fits the cyclic skeleton curves well. The simulated curves obtained by ABAQUS agree well with the test curves. Therefore, the constitutive relationship of stainless steel under cyclic loading is different from that under monotonic loading and the parameters of the hardening model of cyclic plasticity which are calibrated from tests can be used in the numerical simulations.关键词
不锈钢/循环加载/滞回性能/有限元分析Key words
stainless steel/cyclic loading/ hysteretic behavior/ finite element analysis分类
建筑与水利引用本文复制引用
王元清,常婷,石永久..循环荷载下奥氏体不锈钢的本构关系试验研究[J].东南大学学报（自然科学版）,2012,42(6):1175-1179,5.基金项目
国家自然科学基金资助项目(51108007)、高等学校博士学科点专项科研基金资助项目(20110002130002)、北京市自然科学基金资助项目(8112018). （51108007）
