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Article
Fatigue Damage Detection In Graphite/Epoxy Composites Using Sonic Infrared Imaging Technique
Composites Science and Technology
  • Ahsan Mian, Wright State University - Main Campus
  • Xiaoyan Han
  • Sarwar Islam
  • Golam Newaz
Document Type
Article
Publication Date
4-1-2004
Abstract

This paper describes the application of a short ultrasonic pulse thereby infrared surface imaging to assess fatigue damage in graphite/epoxy composites. The technique uses a short pulse of sound wave that infuses to the material and results in frictional heating at the crack surfaces. The heating at the crack defuses into the surface of the sample, and the temperature rise at the crack location is sufficient to be captured by an infrared (IR) camera. In this paper, the ability of sonic infrared imaging technique in detecting fatigue damage in composite materials has been demonstrated. Finite element modeling was performed to better understand the effect of applied sound pulse at the damage locations and to interpret the vibrometer data. The same samples were also tested using thermal wave imaging nondestructive evaluation (NDE) technique.

DOI
10.1016/j.compscitech.2003.07.005
Citation Information
Ahsan Mian, Xiaoyan Han, Sarwar Islam and Golam Newaz. "Fatigue Damage Detection In Graphite/Epoxy Composites Using Sonic Infrared Imaging Technique" Composites Science and Technology Vol. 64 Iss. 5 (2004) p. 657 - 666 ISSN: 0266-3538
Available at: http://works.bepress.com/ahsan-mian/28/