Statistical modeling of crack growth and reliability assessment of high-density polyethylene

被引：0
|
作者：
F. S. Qureshi
A. S. Sheikh
Z. Khan
M. Ahmad
机构：
[1] The Lubrizol Corporation,Mechanical Engineering Department
[2] King Fahd University of Petroleum and Minerals,undefined
来源：
Journal of Materials Engineering and Performance | 1999年 / 8卷
关键词：
crack growth; fatigue; high-density polyethylene; reliability modeling;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this work, a statistical evaluation of the crack-growth process in high-density polyethylene (HDPE) was carried out. The specimens were compression molded from virgin, molding-grade HDPE. Edgenotched specimens for replicate fatigue testing were prepared from compression-molded sheets. Fatigue test results were then analyzed, and it is shown that if the crack-growth process can be characterized as a random process following a power-law-type behavior, then the time to reach a critical crack length will be distributed according to an inverted lognormal model.
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页码：347 / 352
页数：5
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