The sources of heat generation in vibrothermography

被引：165

作者：

Renshaw, Jeremy ^{[1
]}

Chen, John C. ^{[2
]}

Holland, Stephen D. ^{[1
]}

Thompson, R. Bruce ^{[1
]}

机构：

[1] Iowa State Univ, Ctr NDE, Ames, IA 50011 USA

[2] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA

来源：

NDT & E INTERNATIONAL | 2011年 / 44卷 / 08期

基金：

美国国家科学基金会;

关键词：

Vibrothermography; Source; Heat generation; Sonic IR; Friction; Plasticity; FATIGUE CRACKS;

D O I：

10.1016/j.ndteint.2011.07.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Vibrothermography, or sonic IR, is a nondestructive evaluation technique used to find surface and near surface defects-such as cracks and delaminations-through observations of vibration-induced heat generation. This method has significant interest as an industrial inspection method, however, a lack of understanding of the fundamental physics governing the heat generation process has limited its application despite extensive theoretical, numerical simulation, and experimental work. Significant theoretical and numerical simulation work has been performed, but has yet to be rigorously verified experimentally. This paper presents experimental verification of the sources of heat generation in vibrothermography; specifically friction, plasticity, and viscoelasticity. Specific experimental evidence is presented that verifies each of these heat-generating mechanisms. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：736 / 739

页数：4

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