Influence of mean stress and frequency on the fatigue crack growth behaviour of A508 cl III steel in a low temperature pressurized water reactor environment

1992 ◽  
Vol 14 (6) ◽  
pp. 421
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Low Temperature ◽  
Crack Growth ◽  
Mean Stress ◽  
Pressurized Water Reactor ◽  
Growth Behaviour ◽  
Pressurized Water ◽  
Crack Growth Behaviour ◽  
Water Reactor

Fatigue Crack Growth Rate of Medium and Low Sulfur Ferritic Steels in Pressurized Water Reactor Primary Water Environments

2003 ◽  
Author(s):  
Ernest D. Eason ◽  
Edward E. Nelson ◽  
Graham B. Heys
Keyword(s):  
Growth Rate ◽  
Fatigue Crack ◽  
Crack Growth Rate ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Pressurized Water Reactor ◽  
Pressurized Water ◽  
Water Reactor ◽  
Primary Water ◽  
Low Sulfur

Models of fatigue crack growth rates for medium and low sulfur ferritic pressure vessel steels in pressurized water reactor (PWR) primary environments are developed based on a recent collection of UK data and the EPRI Database for Environmentally Assisted Cracking (EDEAC). The combined UK and EDEAC database contains a broader range of experimental conditions specific to PWRs than either database by itself. Both probabilistic and conventional crack growth rate models are developed that reduce unnecessary conservatism for medium and low sulfur PWR primary water applications and eliminate the explicit dependence on rise time that caused difficulties applying prior models.

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