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Recent Advances in Data Processing from Caustics

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Dynamic Failure of Materials

Abstract

A technique for the determination of stress intensity factors from caustics by means of an interactive image processing system has been developed where a multipoint overdeterministic data reduction technique makes use of a number of data points along the recorded caustic. The method requires minimum manual input from the analyst. The selection of data points along the experimentally recorded caustic curve for the analysis is done automatically. Results of this procedure are checked by comparing for acceptable coincidence the numerically generated caustic on the basis of the result of the iterative data reduction technique with the experimentally recorded caustic.

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References

  1. P. Manogg. Anwendwig der Schattenoptik zur Untersuchung des Zerreißvorganges von Platten.PhD Thesis, Universität Freiburg i. B., Freiburg, Germany, 1964.

    Google Scholar 

  2. P. Manogg. Investigation of the rupture of a Plexiglas plate by means of an optical method involving high speed filming of the shadows originating around holes drilling in the plate. Int. J. Fracture Mechanics, 2:604–613, 1966.

    CAS  Google Scholar 

  3. P.S. Theocaris. Local yielding around a crack tip in Plexiglas. J. Applied Mechanics, 37:409–415, 1970.

    Article  Google Scholar 

  4. P.S. Theocaris. Reflected shadow method for the study of constrained zones in cracked plates. Applied Optics, 10(10):2240–2247, 1971.

    Article  CAS  Google Scholar 

  5. J. Beinert and J.F. Kalthoff. Experimental determination of dynamic stress intensity factors by the method of shadow patterns. Mechanics of Fracture, 7:281–330, 1981.

    Google Scholar 

  6. H.P. Rossmanith. The method of caustics for plane elasticity problems. Elasticity, 12:193–200, 1982.

    Article  Google Scholar 

  7. S. Suzuki and S. Fukuchi. Some experiments on measurement of dynamic stress intensity factor of fast propagating cracks. This volume.

    Google Scholar 

  8. L.B. Freund and A.J. Rosakis. The influence of transient effects on the asymptotic crack tip field during dynamic crack growth. This volume.

    Google Scholar 

  9. P. Manogg. Die Lichtablenkung durch eine elastisch beanspruchte Platte und die Schattenfiguren von Kreis und Rißkerbe. Glastechnische Berichte, 39:323–329, 1966.

    CAS  Google Scholar 

  10. R. Podleschny and J.F. Kalthoff. Improved methodology for the determination of fracture mechanics shear-(mode-2)-stress intensity factors by means of the shadow optical method of caustics. In: 13.GESA-Symposium, pages 323-335, Bochum, Germany, 1990.

    Google Scholar 

  11. J.F. Kalthoff. The shadow optical methods of caustics. In: A.S. Kobayashi (Editor), Handbook on Experimental Mechanics, chapter 9, pages 430-500. Prentice Hall, Inc., 1987.

    Google Scholar 

  12. H.P. Rossmanith. The method of caustics. In: Wang W.C. (Editor), Advanced Photomechanics, pages 1-450. Dynamic Engineering Institute, National Tsing-Hua University, Hsinchu, Taiwan, 1988.

    Google Scholar 

  13. G.R. Irwin. Lecture Notes on Fracture Mechanics. Dept. of Mechanical Engineering, University of Maryland, 1979.

    Google Scholar 

  14. H.P. Rossmanith. Determination of stress intensity factors by the dynamic method of caustics for optically isotropic materials. Ingenieur-Archiv, 48:363–381, 1979.

    Article  Google Scholar 

  15. H. Nigam and A. Shukla. Comparison of the techniques of transmitted caustics and photoelasticity as applied to fracture. Experimental Mechanics, pages 123-130, 1988.

    Google Scholar 

  16. L.B. Freund. Dynamic Fracture Mechanics. Cambridge University Press, 1990.

    Google Scholar 

  17. R.E. Knasmillner. Vielpunktmethode zur Bestimmung des Spannungsintensitätsfaktors mit Hilfe der Methode der Kaustik. ÖIAZ, 131:318–320, 1986.

    Google Scholar 

  18. H.P. Rossmanith and R.E. Knasmillner. An interactive caustic-based method of stress intensity factor determination. In: D. Firrao (Editor), Proc. ECF-8, volume 2, pages 1093-1098. EMAS, October 1990.

    Google Scholar 

  19. H.P. Rossmanith and R.E. Knasmillner. Interaction of Rayleigh waves with surface breaking and embedded cracks. In: Y. Kanto H. Homma (Editor), Proc. of OJI Int. Seminar on Dynamic Fracture, pages 236-262, Toyohashi University of Technology, Japan, 1989.

    Google Scholar 

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© 1991 Elsevier Science Publishers Ltd

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Rossmanith, H.P., Knasmillner, R.E. (1991). Recent Advances in Data Processing from Caustics. In: Rossmanith, H.P., Rosakis, A.J. (eds) Dynamic Failure of Materials. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3652-5_18

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  • DOI: https://doi.org/10.1007/978-94-011-3652-5_18

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-85166-665-2

  • Online ISBN: 978-94-011-3652-5

  • eBook Packages: Springer Book Archive

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