GS(6)-28(GSW0309) Development of a Creep-Fatigue Life Prediction Model for Type 316L Stainless Steels

2003 ◽  
Vol 2003 (0) ◽  
pp. 322
Author(s):  
Jun Youn Lee ◽  
Soon Bok Lee
Keyword(s):  
Fatigue Life ◽  
Prediction Model ◽  
Stainless Steels ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Type 316L ◽  
Creep Fatigue ◽  
Life Prediction Model

A creep-fatigue life prediction model considering multi-factor coupling effect

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Junzhou Huo ◽  
Debin Sun ◽  
Shaoxia An
Keyword(s):  
Fatigue Life ◽  
Prediction Model ◽  
Life Prediction ◽  
Evaluation Method ◽  
Prediction Models ◽  
Coupling Effect ◽  
Fatigue Life Prediction ◽  
Creep Fatigue ◽  
Exhaustion Method ◽  
Life Prediction Model

Abstract A creep-fatigue life prediction model based on a novel creep damage evaluation method (NCDEM) considering the multi-factor coupling effect is presented in this paper. Further, to verify the validity and practicability, the creep-fatigue life of GH4169 at 650 °C is calculated to compare with the experimental results. Ultimately, the prediction results are respectively compared with those of the creep-fatigue life prediction models based on the time fraction method (TFM), ductility exhaustion method (DEM), and strain energy density exhaustion method (SEDEM). Consequently, the prediction results are distributed in ±1.5 times dispersion band, which elucidates the creep-fatigue life prediction model proposed based on the NCDEM has the best ability.

Normalized creep–fatigue life prediction model based on the energy dissipation during hold time

2007 ◽  
Vol 460-461 ◽  
pp. 195-203 ◽  
Author(s):  
Chang Yeol Jeong ◽  
Jung-Chan Bae ◽  
Chang-Seog Kang ◽  
Jae-Ik Cho ◽  
Hyeon-Taek Son
Keyword(s):  
Fatigue Life ◽  
Energy Dissipation ◽  
Prediction Model ◽  
Life Prediction ◽  
Hold Time ◽  
Fatigue Life Prediction ◽  
Model Based ◽  
Creep Fatigue ◽  
Life Prediction Model

Fatigue Life Prediction of Buckling String with Cracks in Horizontal Wells of Mining Engineering

2012 ◽  
Vol 577 ◽  
pp. 127-131 ◽  
Author(s):  
Peng Wang ◽  
Tie Yan ◽  
Xue Liang Bi ◽  
Shi Hui Sun
Keyword(s):  
Fatigue Life ◽  
Prediction Model ◽  
Life Prediction ◽  
Horizontal Well ◽  
Drill Pipe ◽  
Prediction Method ◽  
Drill String ◽  
Fatigue Life Prediction ◽  
Mining Engineering ◽  
Life Prediction Model

Fatigue damage in the rotating drill pipe in the horizontal well of mining engineering is usually resulted from cyclic bending stresses caused by the rotation of the pipe especially when it is passing through curved sections or horizontal sections. This paper studies fatigue life prediction method of rotating drill pipe which is considering initial crack in horizontal well of mining engineering. Forman fatigue life prediction model which considering stress ratio is used to predict drill string fatigue life and the corresponding software has been written. The program can be used to calculate the stress of down hole assembly, can predict stress and alternating load in the process of rotating-on bottom. Therefore, establishing buckling string fatigue life prediction model with cracks can be a good reference to both operation and monitor of the drill pipe for mining engineering.

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