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Initiation of a Crack from the Edge of a Notch with Oblique Front in Specimens of Brittle Materials

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Abstract

The possibility of stable initiation and propagation of cracks from the edge of a notch with oblique front is established for specimens made of brittle tool materials. The compliance calibration of compact specimens weakened by notches with oblique front is obtained with the help of approximation of the experimental data by the method of least squares and applied to the evaluation of fracture toughness along the oblique profile in the process of wedging of a compact specimen.

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REFERENCES

  1. N. V. Novikov and A. L. Maistrenko, "Crack resistance of crystalline and composite superhard materials," Fiz.-Khim. Mekh. Mater., 19, No. 4, 46–53 (1983).

    Google Scholar 

  2. R. J. Primas and R. Gstrein, "ESIS TC6 round robin on fracture toughness of ceramics," in: Proc. of the 11th Bien. Europ. Conf. on Fracture, Poitiers-Futuroscope, France (1996), pp. 747–752.

    Google Scholar 

  3. S. Palmquist, "Rissbildungsarbeit bei Vickers-Eindrücken als Mass für die Zähigkeit von Hartmetallen," Archiw für Eisenhüttenwesen, 33, No. 9, 629–634 (1962).

    Google Scholar 

  4. J. Nakayama, "Chevron-notch specimen for fracture toughness testing of ceramics," Japan J. Appl. Phys., 3, 422–423 (1964).

    Google Scholar 

  5. R. J. Damani and R. Danzer, "A method for fracture toughness testing of ceramics-ready for standardization," in: Proc. of the 12th Bien. Europ. Conf. on Fracture, Vol. 2, Sheffield, UK (1998), pp. 491–496.

  6. S. Ya. Yarema, M. V. Ivanovich, and L. S. Mel'nichok, "Simple formulas for the stress intensity factors in standard specimens," Fiz.-Khim. Mekh. Mater., 21, No. 1, 52–55 (1985).

    Google Scholar 

  7. D. Munz, R. T. Bubsey, and J. E. Srawley, "Compliance and stress intensity coefficient for short bar specimens with chevron notches," Int. J. Fract., 16, No. 4, 359–374 (1980).

    Google Scholar 

  8. O. M. Romaniv and B. D. Vasyliv, "Some distinctive features of the formation of structural strength of ceramic materials," Fiz.-Khim. Mekh. Mater., 34, No. 2, 7–17 (1998).

    Google Scholar 

  9. V. Vasyliv, "A new conception of the crack growth resistance evaluation of structural and tool-making ceramics," in: R. C. Bradt, D. Munz, M. Sakai, V. Ya. Shevchenko, and K. White (editors), Fracture Mechanics of Ceramics, Vol. 13, Kluver Academic/ Plenum Publishers, New York (2002), pp. 479–484.

    Google Scholar 

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Vasyliv, B.D. Initiation of a Crack from the Edge of a Notch with Oblique Front in Specimens of Brittle Materials. Materials Science 38, 724–728 (2002). https://doi.org/10.1023/A:1024222709514

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