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Ultrasonic NDE of Laser-Damaged Organo-Matrix Composites

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Review of Progress in Quantitative Nondestructive Evaluation

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Abstract

The ultrasonic attenuation and velocity in graphite/epoxy (Gr/Ep) composites damaged by real and simulated laser radiation were measured. The measurements were carried out with composite ultrasonic test equipment (CUTE), a water-tank testbed constructed to study the elastic properties of samples subjected to CO2 laser radiation at several different scan rates. Parallel simulation studies were carried out on samples subjected to temperatures high enough to cause pyrolysis. The ultrasonic measurements were made in the 1 to 5 MHz frequency range for varying angles of incidence. The damage manifests itself in differing degrees of porosity depending on the intensity of irradiation. Both attenuation and velocity were found to be sensitive to this damage.

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References

  1. A.V. Butenin and B. Ya Kogan, “Mechanism of Laser Damage to Polymer Materials,” Sov. J. Quantum Electron. 16, 1422–1424 (1986).

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  2. B. Hosten, M. Des champs and B.R. Tittmann, “Inhomogeneous Wave Generation and Propagation in Lossy Anisotropic Solids. Application to the Viscoelastic Characterization of Composite Materials,” J. of Acoust. Soc. of Am. 82 (1987).

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  3. G.V. Blessing and A.L. Bertram, “Elastic Moduli of Porous Metal Composites,” Proc. IEEE Ultrasonic Symp., 332 (1979).

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Author information

Authors and Affiliations

  1. Rockwell International Science Center, Thousand Oaks, CA, 91360, USA

    B. R. Tittmann & R. Houston

  2. University of Bordeaux, Talence, Cedex, France

    B. Hosten

Authors
  1. B. R. Tittmann
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  2. R. Houston
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  3. B. Hosten
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Editor information

Editors and Affiliations

  1. Ames Laboratory (USDOE), Iowa State University, Ames, Iowa, USA

    Donald O. Thompson

  2. Materials Laboratory, Air Force Wright Aeronautical Laboratories, Wright-Patterson Air Force Base, Dayton, Ohio, USA

    Dale E. Chimenti

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© 1988 Plenum Press, New York

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Tittmann, B.R., Houston, R., Hosten, B. (1988). Ultrasonic NDE of Laser-Damaged Organo-Matrix Composites. In: Thompson, D.O., Chimenti, D.E. (eds) Review of Progress in Quantitative Nondestructive Evaluation. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0979-6_23

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  • DOI: https://doi.org/10.1007/978-1-4613-0979-6_23

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4612-8275-4

  • Online ISBN: 978-1-4613-0979-6

  • eBook Packages: Springer Book Archive

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