P91钢蠕变损伤试验研究与数值模拟.pdf.pdf

第 30 卷第 23 期中国电机工程学报 , 2010 2010 年 8 月 15 日 Proceedings of the CSEE ?2010 . 103 文章编号: 0258-8013 (2010) 23-0103-05 中图分类号: TG 407 文献标志码: A 学科分类号: 470·20 P91 钢蠕变损伤试验研究与数值模拟束国刚,赵彦芬,薛飞,张路,张国栋( 苏州热工研究院,江苏省苏州市 215004) Experiment Research and Numerical Simulation of Creep Damage for P91 Steel SHU Guo-gang, ZHAO Yan-fen, XUE Fei, ZHANG Lu, ZHANG Guo-dong (Suzhou Nuclear Power Research Institute , Suzhou 215004, Jiangsu Province, China) ABSTRACT: P91 steel was used widely in the boiler and piplines of power plant. The st udy of P91 steel creep damage performance had great theory a nd engineering significance for life prediction of power plant. Based on the creep test of P91 steel at 546 ℃, the parameters of creep damage constitutive equations of Kachanov-Rabotnov (K-R) were obtained by two parameter material model. With the user subroutine of finite element (FE) software, the creep damage of the tensile specimens was analyzed by ABAQUS, and the results of FE and test pared. The research results show that the FE results of rupture time and damage is in accordance with test results. Therefore, the theoretical base was provided by the research results for creep damage analysis and life prediction of P91 steel. KEY WORDS: creep damage; creep test; numerical simulation; P91 steel; parameters regression 摘要: