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Nondestructive Evaluation of Damage and Degradation of Mechanical Properties in Composite Panels Subjected to Impact

  • H. Nayeb-Hashemi
  • N. Zheng
Chapter
Part of the Review of Progress in Quantitative Nondestructive Evaluation book series

Abstract

Materials. The materials used in this research were T300/5208 unidirectional graphite/epoxy composite panels supplied by the Army Materials Technology Laboratory. The panels were in square form of 12 in. by 12. in. with nominal thicknesses of 0.042 in. (7-ply) and 0.144 in. (24-ply) respectively. All of the panels were subjected to c-scan examination for uniformity and integrity. The properties of the material are presented in Table 1. A schematic of the unidirectional composite is shown in Fig. 1.

Keywords

Ultimate Tensile Strength Maraging Steel Local Buckling Composite Panel Impact Center 
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References

  1. 1.
    N. Zheng, “Nondestructive Evaluation of Damage and Degradation of Mechanical Properties in Composite Panels Subjected to Impact Loading”, M. S. Thesis, Dept. of Mech. Eng., May 1989, Northeastern University, Boston, MA 02115Google Scholar
  2. 2.
    Greszczuk, L. B., and H. Chao, “Investigation of Brittle Fractures in Graphite-Epoxy Composites Subjected to Impact”, USA-AMRDL-TR-7515, May 1975.Google Scholar
  3. 3.
    Talreja, T., A. Govada, and E. G. Henneke, II, “Quantitative Assessment of Damage Growth in Graphite Epoxy Laminates by Acousto-Ultrasonic Measurements,” Review of Progess in Quantitative Nondestructive Evaluation, Vol. 3B, D. O. Thompson and D. E. Chimenti, Eds., 1984, pp. 1099–1106.Google Scholar
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    Vary, A., and K. J. Bowles, “Ultrasonic Evaluation of the Strength of Unidirectional Graphite/Polyimide Composite,” Proceedings of the 11th Symposium on Nondestructive Evaluation, 1977, pp. 242–258.Google Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • H. Nayeb-Hashemi
    • 1
  • N. Zheng
    • 1
  1. 1.Department of Mechanical EngineeringNortheastern UniversityBostonUSA

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