Overview
- Editors:
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Donald O. Thompson
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Center for NDE Ames Laboratory (USDOE) and Department of Aerospace Engineering and Engineering Mechanics, Iowa State University, Ames, USA
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Dale E. Chimenti
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Center for NDE and Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, USA
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Table of contents (147 chapters)
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- D. J. Roth, S. M. Swickard, D. B. Stang, M. R. DeGuire
Pages 1749-1756
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- Sanjai Parthasarathi, Yichi Lu, Haydn N. G. Wadley
Pages 1757-1764
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- Derek Sturges, Claudio Cappabianca, Janet Minter
Pages 1765-1773
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- Derek Sturges, Kathleen McQueeney, Ellen Avril, Stephen Bonadies
Pages 1775-1781
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- R. H. Bossi, J. L. Cline, G. E. Georgeson
Pages 1783-1790
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- Zhang Yongqian, Chen Yuanhui, Zhao Bin
Pages 1791-1795
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- John H. Cantrell, William T. Yost
Pages 1805-1811
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- Laszlo Adler, Peter B. Nagy
Pages 1813-1820
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- H. Mohrbacher, D. Lee, E. Schneider, K. Salama
Pages 1821-1828
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- Jerry H. Ginsberg, Kun-Tien Shu
Pages 1829-1836
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- J. D. Achenbach, O. K. Parikh
Pages 1837-1844
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- Paul McGowan, Laszlo Adler
Pages 1845-1852
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- P. A. Dickstein, A. N. Sinclair, S. Girshovich, Y. Sternberg, H. Leibovitch, A. Notea
Pages 1853-1860
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- Brian P. Bonner, B. J. Wanamaker
Pages 1861-1867
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- John H. Cantrell, Menglu Qian
Pages 1869-1874
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- Xiaogong Lee, Laurence J. Jacobs, Maciej P. Bieniek
Pages 1883-1889
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- Chien-P. Chiou, Frank J. Margetan, James H. Rose
Pages 1891-1898
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- Mary T. Quinn, Gary F. Hawkins
Pages 1899-1904
About this book
The objective of this study was to increase the understanding of damage in composite materials with through-the-thickness reinforcements. As a first step it was necessary to develop new ultrasonic imaging technology to better assess internal damage of the composite. A useful ultrasonic imaging technique has been successfully developed to assess the internal damage of composite panels. The ultrasonic technique accurately determines the size of the internal damage. It was found that the ultrasonic imaging technique was better able to assess the damage in a composite panel with through-the-thickness reinforcements than by destructively sectioning the specimen and visual inspection under a microscope. Microscopic determination of crack location and lengths in a composite panel with through-the-thickness reinforcements was almost impossible. Five composite compression-after-impact panels were tested. The compression-after-impact strength of the panels with the through-the thickness reinforcements was almost twice that of the comparable panel without through-the-thickness reinforcement. REFERENCES 1. B.T. Smith, J.S. Heyman, A.M. Buoncristiani, Earl D. Blodgett, J.G. Miller, and S.M. Freeman, Correlation of the Deply TechniQue with the Ultrasonic Imaging of Impact Damage in Graphite/Epoxy Composites, Materials Evaluation, vol. 47, NO. 12, December 1989, pp 1408-1416. 2. NASA Tech Briefs, June 1987, p. 28. 3. P.M. Gammel, Improved Ultrasonic Detection using Analytic Signal Magnitude. Ultrasonics, Vol. 19, March 1981, pp 73-76. 4. R.C. Heyser, Determination of Loudspeaker Signal Arrival Times Part ~ Journal of the Audio Engineering Society, Vol. 19, Dec. 1971, pp 902-905.
Editors and Affiliations
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Center for NDE Ames Laboratory (USDOE) and Department of Aerospace Engineering and Engineering Mechanics, Iowa State University, Ames, USA
Donald O. Thompson
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Center for NDE and Department of Materials Science and Engineering, The Johns Hopkins University, Baltimore, USA
Dale E. Chimenti