K-0630 Fatigue Life Prediction of Wood under Multiaxial Cyclic Loading

2001 ◽  
Vol I.01.1 (0) ◽  
pp. 255-256
Author(s):  
Mariko YAMASAKI ◽  
Yasutoshi SASAKI
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Life Prediction ◽  
Fatigue Life Prediction

Multiaxial Fatigue Life Prediction for Notched Components under Proportional and Non-Proportional Cyclic Loading

2012 ◽  
Vol 197 ◽  
pp. 585-589
Author(s):  
Hong Chen ◽  
De Guang Shang ◽  
Yu Jie Tian ◽  
Guang Wei Xu
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Life Prediction ◽  
Elastic Solution ◽  
Fatigue Life Prediction ◽  
Elastic Plastic ◽  
Linear Elastic ◽  
Equivalent Parameter ◽  
Non Linear ◽  
Notched Components

Fatigue life estimation of notched components is mostly dependent on notch stress and strain calculation with non-linear finite element analysis (FEA). For multiaxial cyclic loading, the stress-strain analysis of notch root is rather complex and the non-linear FEA is also very time-consuming. In this paper, a new fatigue life prediction method for notched components under multiaxial loading is proposed. First, a linear elastic solution needs to be solved for notched components under multiaxial cyclic loading. Then, an elastic equivalent parameter is computed using the linear elastic solution. On the basis of the elastic equivalent parameter combined with the Neuber’s rule, an elastic-plastic equivalent parameter is obtained. Finally, the elastic-plastic equivalent parameter is used to estimate fatigue crack initiation life of notched components. The proposed method needs only elastically calculated notch strain history as the basic input and is convenient for engineering application. The method is verified with experimental data of SAE 1045 notched shaft specimens under proportional and non-proportional loading. The results showed that the method can provide good life estimates.

Fatigue Life Prediction of CFRP Laminates under Variable Stress Amplitude and Frequency

2007 ◽  
Vol 334-335 ◽  
pp. 445-448 ◽  
Author(s):  
Masayuki Nakada ◽  
Junji Noda ◽  
Yasushi Miyano
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Life Prediction ◽  
Statistical Approach ◽  
Stress Amplitude ◽  
Fatigue Tests ◽  
Fatigue Life Prediction ◽  
Bending Fatigue ◽  
Cfrp Laminates ◽  
Three Point Bending

This paper is concerned with the fatigue life prediction of CFRP laminates under variable cyclic loading using the linear cumulative damage (LCD) rule with statistical approach. Three-point bending fatigue tests for plain-woven CFRP laminates were carried out undervarious cyclic loading with constant and variable stress amplitude and frequency. As results, the applicability of LCD rule to the flexural fatigue life was confirmed for this CFRP laminates.

A Fatigue Life Prediction Model of Welded Joints under Combined Cyclic Loading

2011 ◽  
Author(s):  
Keurrie C. Goes ◽  
Arnaldo F. Camarao ◽  
Marcos Venicius S. Pereira ◽  
Gilmar Ferreira Batalha ◽  
Francisco Chinesta ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Prediction Model ◽  
Welded Joints ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Life Prediction Model

A Reinterpretation of the Palmgren-Miner Rule for Fatigue Life Prediction

1980 ◽  
Vol 47 (2) ◽  
pp. 324-328 ◽  
Author(s):  
Z. Hashin
Keyword(s):  
Fatigue Life ◽  
Cyclic Loading ◽  
Life Prediction ◽  
Cumulative Damage ◽  
Fatigue Life Prediction ◽  
Damage Theory ◽  
Special Case ◽  
Damage Rule

It is shown that the simple Palmgren-Miner linear cumulative damage rule is a special case of a general cumulative damage theory previously established. Predictions of lifetimes for families of multistage loadings according to the Palmgren-Miner rule and the general cumulative damage theory are compared with the aim of arriving at qualitative guidelines for applicability of the Palmgren-Miner rule in cyclic loading programs.

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