Active thermography as a quantitative method for non-destructive evaluation of porous carbon fiber reinforced polymers

被引：73

作者：

Mayr, G. ^{[1
]}

Plank, B. ^{[1
]}

Sekelja, J. ^{[2
]}

Hendorfer, G. ^{[3
]}

机构：

[1] Res & Dev Ltd, A-4600 Wels, Austria

[2] FACC AG, A-4910 Ried, Austria

[3] Upper Austrian Univ Appl Sci, A-4600 Wels, Austria

来源：

NDT & E INTERNATIONAL | 2011年 / 44卷 / 07期

关键词：

Active thermography; Ultrasonic testing; Computed tomography; Porosity; Carbon fiber reinforced polymers; THERMAL-DIFFUSIVITY; ULTRASONIC-ATTENUATION; POROSITY; CONDUCTIVITY; NDE;

D O I：

10.1016/j.ndteint.2011.05.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work active thermography was successfully applied as a quantitative method for the non-destructive evaluation of porosity in carbon fiber reinforced polymers. Results showed that not only the level of porosity, but also the shape of the pores strongly influences the active thermography results, in particular the measured thermal diffusivity. In an experiment the shape of the pores was obtained by means of X-ray computed tomography. Based on this microstructural information, the "dethermalization theory" can be deduced as the most effective thermal diffusivity model with respect to quantitative porosity determination. Furthermore, the obtained experimental data on active thermography correspond to measurements made using ultrasonic testing with respect to the influence of pore shapes. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：537 / 543

页数：7

共 25 条

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