Oxidation induced stress - Rupture of fiber bundles

被引：28

作者：

Lara-Curzio, E ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA

来源：

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 1998年 / 120卷 / 02期

关键词：

D O I：

10.1115/1.2806996

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The effect of oxidation on the stress-rupture behavior of fiber bundles was modeled. If is shown that oxidation-induced fiber strength degradation results in the delayed failure of the associated fiber bundle and that the fiber bundle strength decreases with time as t(-1/4). It is also shown that the temperature dependence of the bundle loss of strength reflects the thermal dependence of the mechanism controlling the oxidation of the fibers. The effect of gauge length on the fiber bundle strength,vas also analyzed. Numerical examples are presented for the special case of Nicalon (TM) fibers.

引用

页码：105 / 109

页数：5

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