Microstructure-Based Fatigue Life Prediction Methods for Naval Steel Structures

1993 ◽  
Author(s):  
K. S. Chan ◽  
R. C. CmClung ◽  
T. Y. Torng
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Steel Structures ◽  
Fatigue Life Prediction ◽  
Prediction Methods

Evaluation of Creep-Fatigue Life Prediction Methods for Low-Carbon Nitrogen-Added 316 Stainless Steel

1998 ◽  
Vol 120 (2) ◽  
pp. 119-125 ◽  
Author(s):  
Yukio Takahashi
Keyword(s):  
Stainless Steel ◽  
Fatigue Life ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Prediction Methods ◽  
Secondary Creep ◽  
Low Carbon ◽  
316 Stainless Steel ◽  
Creep Fatigue ◽  
Exhaustion Method

Low-carbon, medium-nitrogen 316 stainless steel is a principal candidate for a main structural material of a demonstration fast breeder reactor plant in Japan. A number of long-term creep tests and creep-fatigue tests have been conducting for two heats of the steel. Two representative creep-fatigue life prediction methods, i.e., time fraction rule and ductility exhaustion method were applied. An introduction of a simple viscous strain term improved the description of stress relaxation behavior and only the conventional (primary plus secondary) creep strain was assumed to contribute to creep damage in the ductility exhaustion method. The present ductility exhaustion approach was found to have very good accuracy in creep-fatigue life prediction, while the time fraction rule overpredicted failure life as large as a factor of 30.

Comparison of fatigue life prediction methods for solder joints under random vibration loading

2019 ◽  
Vol 95 ◽  
pp. 58-64 ◽  
Author(s):  
Jiang Xia ◽  
Lin Yang ◽  
Qunxing Liu ◽  
Qi Peng ◽  
LanXian Cheng ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Random Vibration ◽  
Solder Joints ◽  
Fatigue Life Prediction ◽  
Prediction Methods ◽  
Vibration Loading

Bi-Probability Fatigue Life Prediction for Bridge Crane Structures

2012 ◽  
Vol 482-484 ◽  
pp. 736-740
Author(s):  
Xiao Mei ◽  
Da Shan Dong ◽  
Yuan Yuan Teng
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Prediction Method ◽  
Steel Structures ◽  
Fatigue Life Prediction ◽  
Bridge Crane ◽  
Stress Cycle ◽  
Damage Theory ◽  
Rainflow Counting ◽  
Position Probability

Fatigue crack is very dangerous for safely operating of steel structures. To estimate precisely fatigue life of bridge cranes, the randomness of lifted load and trolley’s position should be considered. Therefore, bi-probability fatigue life prediction method, namely load and position probability, is put forward based on the miner linear cumulative damage theory. Stress cycle spectrum is constructed based on real-time monitoring data by rainflow counting method. This method can successfully explain the existence of girder cracks in a typical bridge crane RMG, so it would provide valuable reference for maintenance decision of in-service cranes.

Sign in / Sign up

Export Citation Format

Share Document