Evaluation of Fatigue Damage in Short Carbon Fiber Reinforced Plastics Based on Thermoelastic Stress and Phase Analysis

  • Takahide SakagamiEmail author
  • Daiki Shiozawa
  • Yu Nakamura
  • Shinichi Nonaka
  • Kenichi Hamada
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)


Short carbon fiber composite materials are receiving a lot of attentions because of their excellent moldability and productivity, however they show complicated behaviors in fatigue fracture due to the random fibers orientation. In this study, thermoelastic stress analysis (TSA) using an infrared thermography was applied to the evaluation of fatigue damage in short carbon fiber composites. Second harmonic component of thermoelastic temperature change that is obtained by lock-in processing based on double-frequency against loading frequency was conducted to identify the turbulence in thermoelastic waveform due to fatigue damage evolution. It was found that the portions showing high second harmonic component values coincided with the portions where delamination damages were detected.


Nondestructive evaluation Thermoelastic stress analysis Second harmonic analysis Infrared camera Short carbon fiber reinforced plastics 


  1. 1.
    Greene, R.J., Patterson, E.A., Rowlands, R.E.: Thermoelastic stress analysis. In: Sharpe Jr., W.N. (ed.) Springer Handbook of Experimental Solid Mechanics, pp. 743–767., ISBN 978-0-387-26883-5. Springer Science + Business Media, LLC, New York (2008)CrossRefGoogle Scholar
  2. 2.
    Dulieu-Barton, J.M.: Introduction to thermoelastic stress analysis. Strain. 35, 35–39 (1999)CrossRefGoogle Scholar
  3. 3.
    Emery, T.R., Dulieu-Barton, J.M.: Thermoelastic stress analysis of damage mechanisms in composite materials. Compos. Part A. 41, 1729–1742 (2010)CrossRefGoogle Scholar
  4. 4.
    Fruehmann, R.K., Dulieu-Barton, J.M., Quinn, S.: Assessment of fatigue damage evolution in woven composite materials using infra-red techniques. Compos. Sci. Technol. 70, 937–946 (2010)CrossRefGoogle Scholar
  5. 5.
    Uenoya, T., Fujii, T.: Damage characterization of woven fabric composite materials by thermoelastic analysis. J. Soc. Mater. Sci. Jpn. 49, 941–947 (2000)CrossRefGoogle Scholar
  6. 6.
    Sakagami, T., Shiozawa, D., Nakamura, Y., Nonaka, S., Hamada, K.: Fatigue damage evaluation of short fiber CFRP based on phase information of thermoelastic temperature change. Proc. SPIE. 10214, 102140M-1–102140M-6 (2017). 12.2262972 CrossRefGoogle Scholar
  7. 7.
    Shiozawa, D., Sakagami, T., Nakamura, Y., Nonaka, S., Hamada, K.: Fatigue damage evaluation of short carbon fiber reinforced plastics based on phase information of thermoelastic temperature change. Sensors. 17(12), 2824 (2017). CrossRefGoogle Scholar
  8. 8.
    Sugimoto, S., Ishikawa, T.: Examination of quantitative infrared stress measurement of CFRP laminates and its application to non-destructive evaluation. Tech. Rep. National Aerosp. Lab. 1396, 1–23 (1999)Google Scholar
  9. 9.
    Paynter, R.J.H., Dutton, A.G.: The use of a second harmonic correlation to detect damage in composite structures using thermoelastic stress measurements. Strain. 39, 73–78 (2003)CrossRefGoogle Scholar

Copyright information

© The Society for Experimental Mechanics, Inc. 2019

Authors and Affiliations

  • Takahide Sakagami
    • 1
    Email author
  • Daiki Shiozawa
    • 1
  • Yu Nakamura
    • 1
  • Shinichi Nonaka
    • 2
  • Kenichi Hamada
    • 2
  1. 1.Department of Mechanical EngineeringKobe UniversityNada, KobeJapan
  2. 2.DIC CorporationChuo-ku, TokyoJapan

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