Microcrack Growth Law-Aided Approach in Evaluating Low-Cycle Fatigue Strength and Its Application — Directionality Assessment of Thick Forged Steel Plates(A533b Cl 1) and Prediction of the Microcrack Propagation Life of a Medium Carbon Steel Under Variable Strain Amplitudes

1987 ◽  
pp. 581-587
Author(s):  
Shoji Harada ◽  
Tatsuo Endo ◽  
Yoshihiro Fukushima
Keyword(s):  
Fatigue Strength ◽  
Carbon Steel ◽  
Low Cycle Fatigue ◽  
Medium Carbon Steel ◽  
Steel Plates ◽  
Cycle Fatigue ◽  
Medium Carbon ◽  
Microcrack Propagation ◽  
Microcrack Growth

Probabilistic Model of the Multiaxial Low-Cycle Fatigue Life Prediction

2012 ◽  
Vol 479-481 ◽  
pp. 2135-2140
Author(s):  
Lei Wang ◽  
Tian Zhong Sui ◽  
Hang Zhao ◽  
En Guo Men
Keyword(s):  
Fatigue Life ◽  
Carbon Steel ◽  
Probabilistic Model ◽  
Life Prediction ◽  
Low Cycle Fatigue ◽  
Medium Carbon Steel ◽  
Multiaxial Fatigue ◽  
Fatigue Life Prediction ◽  
Cycle Fatigue ◽  
Medium Carbon

First, several widely used models of the multiaxial low-cycle fatigue life prediction based on the critical plane approach were presented in this paper, and the predicted results of these models for a medium carbon steel under the condition of multiaxial low-cycle fatigue loading were compared. Second, the stochastic expressions and probability density function curves of the fatigue performance parameters were obtained by probabilistic analysis of the medium carbon steel fatigue data. Finally, the probabilistic model of the multiaxial fatigue life prediction was simulated by Monte Carlo Method, which should provide a basis for the reliability analysis of engineering components subjected to the multiaxial complex loads.

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