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http://dx.doi.org/10.3795/KSME-A.2012.36.4.379

A Study of Probabilistic Fatigue Crack Propagation Models in Mg-Al-Zn Alloys Under Different Specimen Thickness Conditions by Using the Residual of a Random Variable  

Choi, Seon-Soon (Dept. of Car Mechatronics Engineering, Sahmyook Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.36, no.4, 2012 , pp. 379-386 More about this Journal
Abstract
The primary aim of this paper was to evaluate several probabilistic fatigue crack propagation models using the residual of a random variable, and to present the model fit for probabilistic fatigue behavior in Mg-Al-Zn alloys. The proposed probabilistic models are the probabilistic Paris-Erdogan model, probabilistic Walker model, probabilistic Forman model, and probabilistic modified Forman models. These models were prepared by applying a random variable to the empirical fatigue crack propagation models with these names. The best models for describing fatigue crack propagation behavior in Mg-Al-Zn alloys were generally the probabilistic Paris-Erdogan and probabilistic Walker models. The probabilistic Forman model was a good model only for a specimen with a thickness of 9.45 mm.
Keywords
Mg-Al-Zn Alloys; Probabilistic Fatigue Crack Propagation Model; Random Variable; Residual; Specimen Thickness; Fatigue;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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