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QI Fang-juan, HUO Li-xing, ZHANG Yu-feng, JING Hong-yang, ZHAO Hai-shen. Statistic distribution of resistance to initiation property of high density polyethylene gas pipe butt-fusion welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (3): 49-52.
Citation: QI Fang-juan, HUO Li-xing, ZHANG Yu-feng, JING Hong-yang, ZHAO Hai-shen. Statistic distribution of resistance to initiation property of high density polyethylene gas pipe butt-fusion welded joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2006, (3): 49-52.
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Statistic distribution of resistance to initiation property of high density polyethylene gas pipe butt-fusion welded joint

  • 1.

    Materials Science and Engineering Department, Shijiazhuang Railway Institute, Shijiazhuang 050043, China

  • 2.

    School of Materials Science and Engineering, Tianjing University, Tianjin 300072, China

  • 3.

    Chinaust Plastic CO.LTD., Zhuozhou 072716, Hebei, China

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  • Received Date: December 05, 2004
    Graphical Abstract
    • Abstract
  • The statistic distribution of the resistance to initiation property of HDPE(high density polyethylene) pipe butt-fusion welded joint was investigated on the basis of Crack Opening Displacement(COD).The results show that the saturation initial crack COD δis of HDPE butt-fusion welded joint have the statistic variance inherently.The statistic probabilistic model was set up to fit the distribution function of δis.Performed several statistic tests,the results show that the optimum fitting distribution of δis weibull distribution with three parameters.The variance of test results decreases with decreasing temperature.
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