scholarly journals Estimation of unnotched low-cycle fatigue life of a medium carbon steel through observation of microcrack initiation and propagation.

1985 ◽  
Vol 51 (464) ◽  
pp. 1215-1223 ◽  
Author(s):  
Shoji HARADA ◽  
Yukitaka MURAKAMI ◽  
Yoshihiro FUKUSHIMA ◽  
Yutaka ISHIMATSU ◽  
Tatsuo ENDO
Keyword(s):  
Fatigue Life ◽  
Carbon Steel ◽  
Low Cycle Fatigue ◽  
Medium Carbon Steel ◽  
Cycle Fatigue ◽  
Medium Carbon ◽  
Initiation And Propagation ◽  
Microcrack Initiation

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.

Effect of Notched Parameters on Low Cycle Fatigue Life of Shaft under Bending-Torsional Loading

2011 ◽  
Vol 488-489 ◽  
pp. 166-169
Author(s):  
Ping Ma ◽  
You Tang Li
Keyword(s):  
Fatigue Life ◽  
Fatigue Testing ◽  
Low Cycle Fatigue ◽  
Testing Machine ◽  
Medium Carbon Steel ◽  
Cycle Fatigue ◽  
Medium Carbon ◽  
Fatigue Design ◽  
Tip Radius ◽  
Special Clamp

A special clamp for fatigue of shaft under bending-torsion that used on the fatigue machine is designed and manufactured. For the medium carbon steel, the low-cycle fatigue experiments of shaft with annular notch under bending-torsion have been made on Shimadzu EHF-EM100kN high-frequency electro-hydraulic fatigue testing machine. Through experiments and analysis, the effects of tip radius, depth and open angle of notch on low cycle fatigue life of shaft with annular notch under bending-torsion are obtained. The method and results will play an important role on the fatigue life prediction and anti-fatigue design.

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