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Proceedings Article

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

[+] Author Affiliations
E. Z. Kordatos, T. E. Matikas

Univ. of Ioannina (Greece)

Proc. SPIE 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011, 79820U (April 15, 2011); doi:10.1117/12.881019
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From Conference Volume 7982

  • Smart Sensor Phenomena, Technology, Networks, and Systems 2011
  • Wolfgang Ecke; Kara J. Peters; Theodore E. Matikas
  • San Diego, California, USA | March 06, 2011

abstract

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

E. Z. Kordatos and T. E. Matikas
"Developing damage metrics for metallic structures undergoing fatigue using real-time thermographic evaluation", Proc. SPIE 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011, 79820U (April 15, 2011); doi:10.1117/12.881019; http://dx.doi.org/10.1117/12.881019


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