Creep Life Assessment Method Considering Material Properties of Individual Piping

2017 ◽  
Vol 2017 (0) ◽  
pp. OS1209
Author(s):  
Masatsugu YAGUCHI
Keyword(s):  
Material Properties ◽  
Assessment Method ◽  
Life Assessment ◽  
Creep Life ◽  
Creep Life Assessment

scholarly journals Influence of thermal-varying material properties on stress calculation for creep life assessment of seamless medium-carbon steel boiler tubes

2020 ◽  
Vol 844 ◽  
pp. 012029
Author(s):  
L M Castellanos-González ◽  
H Hernández Herrera ◽  
R Goytisolo Espinosa ◽  
L M Castellanos Molina ◽  
E E Vergara Verbel ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Material Properties ◽  
Medium Carbon Steel ◽  
Life Assessment ◽  
Creep Life ◽  
Medium Carbon ◽  
Stress Calculation ◽  
Boiler Tubes ◽  
Creep Life Assessment ◽  
Steel Boiler

A Case Study on the Effect of Peaked Pipe Welds on Piping Life Expectancy

2010 ◽  
Author(s):  
Warren Brown ◽  
Martin Prager ◽  
Sarah Wrobel
Keyword(s):  
Material Properties ◽  
Life Assessment ◽  
Piping System ◽  
Creep Life ◽  
Element Analysis ◽  
Omega Method ◽  
Detailed Assessment ◽  
Creep Life Assessment ◽  
Pipe Geometry

This paper details a case study on the effect of weld peak geometry on the expected creep life of a piping system operating in a refining environment. Inspection of the 1-1/4 Cr piping system revealed significant peaked geometry at the longitudinal weld locations. A Finite Element Analysis (FEA) assessment of the remaining life was made using the Omega method of creep life assessment. The sensitivity of the results to modeled pipe geometry and assumed material properties was assessed. The variability of life prediction that was obtained indicated a necessity to perform further more detailed assessment of the pipe geometry and material properties by the removal of samples at the weld locations. The improvement obtained in the assessment accuracy and final life predictions from the sample analysis is presented in the paper and practical implications on the operation of the piping system are detailed. Suggestions and cautions for the practical assessment of similar peaked pipe problems are also discussed.

A creep life assessment method for boiler pipes using small punch creep test

2009 ◽  
Vol 86 (9) ◽  
pp. 637-642 ◽  
Author(s):  
Toru Izaki ◽  
Toshimi Kobayashi ◽  
Junichi Kusumoto ◽  
Akihiro Kanaya
Keyword(s):  
Creep Test ◽  
Assessment Method ◽  
Life Assessment ◽  
Creep Life ◽  
Small Punch ◽  
Creep Life Assessment ◽  
Small Punch Creep Test

Creep life assessment of distribution transformers

2010 ◽  
Vol 17 (5) ◽  
pp. 1077-1085 ◽  
Author(s):  
N.S. Beniwal ◽  
D.K. Dwivedi ◽  
H.O. Gupta
Keyword(s):  
Life Assessment ◽  
Creep Life ◽  
Distribution Transformers ◽  
Creep Life Assessment

scholarly journals CREEP LIFE ASSESSMENT OF 2.25Cr-1Mo PIPING STEEL AND OF ITS SIMULATED HAZ MATERIAL

1997 ◽  
Vol 46 (12Appendix) ◽  
pp. 237-243 ◽  
Author(s):  
Kazunari FUJIYAMA ◽  
Takashi ISEKI ◽  
Atsushi KOMATSU ◽  
Nagatoshi OKABE
Keyword(s):  
Life Assessment ◽  
Creep Life ◽  
Creep Life Assessment
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