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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27010

    Title: Statistical analysis of size effects on time-dependent fracture of an alumina
    Authors: Lin,CK;Chen,WS
    Contributors: 機械工程學系
    Date: 1997
    Issue Date: 2010-06-29 18:05:29 (UTC+8)
    Publisher: 中央大學
    Abstract: Time-dependent fracture of an alumina under long-term static and cyclic loading was investigated by four- and three-point flexure tests. Bend bars with two different sizes were prepared to evaluate the size effects on the failure time distribution. The resulting stress-life data mere analyzed by two statistical time-dependent fracture theories which incorporate the statistics of strength and flaw size distribution with subcritical crack growth that leads to delayed fracture. The first model considers only the growth of a single major crack to a critical size while the second considers the size distribution of multiple flaws and their slow crack growth characteristics. Both models provided commonly acceptable description of the static and cyclic strength-probability-lifetime relationships for the experimental results from various specimen sizes and flexure modes.
    Appears in Collections:[機械工程研究所] 期刊論文

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