Sensing damage in carbon fiber and its polymer-matrix and carbon-matrix composites by electrical resistance measurement

被引：93

作者：

Wang, XJ ^{[1
]}

Wang, SK ^{[1
]}

Chung, DDL ^{[1
]}

机构：

[1] SUNY Buffalo, Composite Mat Res Lab, Buffalo, NY 14260 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 1999年 / 34卷 / 11期

关键词：

D O I：

10.1023/A:1004629505992

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Fatigue damage was sensed in real time in continuous carbon fiber and its polymer-matrix and carbon-matrix composites by electrical resistance measurement in the fiber direction. In a polymer-matrix composite, fiber breakage overshadows fiber damage in causing the resistivity of the composite to increase irreversibly. In a carbon-matrix composite, fiber breakage and matrix cracking caused the resistivity to increase irreversibly, such that these two mechanisms cannot be distinguished. Fatigue damage was detected from 50% of the fatigue life onward for the polymer-matrix composite, and from 0% of the fatigue life onward for the carbon-matrix composite. (C) 1999 Kluwer Academic Publishers.

引用

页码：2703 / 2713

页数：11

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