A Continuum Damage Mechanics Model on Creep Rupture Life Assessment of a Steam Turbine Rotor-Reference-Cited by-同舟云学术

A Continuum Damage Mechanics Model on Creep Rupture Life Assessment of a Steam Turbine Rotor

Published:2005-02-15 Issue:1 Volume:128 Page:173-177
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

JianPing Jing¹,Guang Meng¹,Yi Sun²,SongBo Xia²

Affiliation:

1. The State Key Laboratory of Vibration, Shock & Noise, ShangHai JiaoTong University, ShangHai 200030, P. R. China

2. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China

Abstract

A nonlinear continuum damage mechanics model is proposed to assess the high temperature creep life of a steam turbine rotor, in which the effect of mean stress is taken into account and the damage is accumulated nonlinearly. The model is applied to a 300 MW steam turbine under hot start operation. The results are compared with those from the linear accumulation theory that is dominant in the creep life assessment of steam turbine rotors at present. The comparison results show that the nonlinear continuum damage mechanics model describes the accumulation and development of damage better than the linear accumulation theory.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/128/1/173/5707014/173_1.pdf

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5. Life Prediction of 300 MW Steam Turbine Under Cold Start;Wang;Turbine Technology

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