Developing damage metrics for metallic structures undergoing fatigue using real-time thermographic evaluation

被引：5

作者：

Kordatos, E. Z. ^{[1
]}

Matikas, T. E. ^{[1
]}

机构：

[1] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

来源：

SMART SENSOR PHENOMENA, TECHNOLOGY, NETWORKS, AND SYSTEMS 2011 | 2011年 / 7982卷

关键词：

Infrared thermography; nondestructive evaluation; fatigue; damage parameters; life prediction;

D O I：

10.1117/12.881019

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The purpose of this study is to develop an innovative non-destructive methodology for analyzing the thermal effects in metallic materials caused by fatigue. Mechanical stresses induced by cyclic loading in the material cause heat release due to microstructural changes, which results in an increase of the material's temperature. The heat release was quantified as a function of fatigue cycles in carbon steel samples. Mechanical hysteresis phenomena were analyzed to identify the metrics of damage, which relates to thermal parameters characterizing the level of damage of the material as a function of fatigue cycles.

引用

页数：7

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