Statistical analysis of HDPE fatigue lifetime

Statistical analysis of HDPE fatigue lifetime,10.1007/s11012-008-9133-7,Meccanica,Rabia Khelif,Alaa Chateauneuf,Kamel Chaoui

Statistical analysis of HDPE fatigue lifetime   (Citations: 2)
BibTex | RIS | RefWorks Download
Fatigue lifetime of HDPE structures such as pipes is recognized to show a large scatter. This study aims to compare different statistical methods and distributions, in order to give convenient modeling of tensile and fatigue test results of commercially available polyethylene compression molded sheets. The median rank, the maximum likelihood and the Kolmogorov-Smirnov fitting are compared for the estimation of Weibull parameters. The choice of the best distribution to fit fatigue lifetime is discussed on the basis of the goodness-of-fit results. It is found that whether the three-parameter distributions of Weibull and lognormal types are suitable for lifetime prediction, the two-parameter Weibull is more conservative for probabilistic fatigue design.
Journal: Meccanica , vol. 43, no. 6, pp. 567-576, 2008
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
    • ...Two- and three-parameter Weibull distribution, as well as three-parameter lognormal, can be adequately applied for probabilistic lifetime characterization (Figure 7) and an expression in the power type form has led to more appropriate representation of fatigue data [25] compared to linear fitting in the log-scale...

    Kamel Chaouiet al. Failure Analysis of Polyethylene Gas Pipes

    • ...Brittle failure in semicrystalline polymers has been claimed to originate from chain disentanglement in fibrils, and recently other studies have also concluded that chain breaking due to applied stress during crack propagation involves fibrillation within the damage zone [9]...

    Boubaker Bounamouset al. Degradation and Failure of Some Polymers (Polyethylene and Polyamide) ...

Sort by: