用本构关系及有限元法研究高温管道剩余寿命.pdf

A Study of Residual Life for the High Temperature Tube by Constitutive Relationship and Finite Element Method () () ( ) ang Xu (Jinling Petrochemical Corporation) ( ) Shen Fuzhong Ning Zhiwei Ling Xiang Nanjing University of Chemical T echnology Gu Li (Shanghai Petrochemical Corporation) [ ] 2032, PG , , [ Abstract] For the tube operated at elevated temperature, the variations of critical damage with service time are obtained in light of the constitutive relationshops taken from the creep and rupture test data, as well as analysis model of the finite element mothod. T he radiant heating fur- nace PG2032 centrifugally casting alloy tube taken for an example is discussed in this paper The. acquired result of damage development can be compared with the result of non-destructive inspec- tion therefore predicting residual life of the tube can be more accurate, , . Keywords high temperature tubecreepdamage constitutive relationshipfinite ele- ment residual life 1 PG 2032, , , , ; , [ 1] , , , , [2] F . A . Simonen [3] HK - 40