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K Ic and J-resistance-curve measurements on Nevada tuff

Linear-elastic fracture mechanics and J-integral test methods have been used to determine the static fracture behavior of a porous volcanic tuff

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Abstract

Linear-elastic fracture mechanics and J-integral test methods were used to determine the static fracture behavior of a porous volcanic tuff. Notched and prefatigued specimens of two different sizes were tested in three-point bending. The fracture toughness (K Ic ) and theJ-resistance (J vs. crack growth) curve for each specimen was determined. The results indicate that there is good agreement between the fracture parameters determined by the two methods; however, there is some dependence of the results on specimen size. Possible reasons for this specimen-size dependence are discussed.

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References

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Authors and Affiliations

  1. Department of Materials Science, Johns Hopkins University, 21218, Baltimore, MD

    R. Weisinger (Research Assistant)

  2. Division 5532, Sandia Laboratories, (a U.S. Dept. of Energy Facility, 87185, NM

    L. S. Costin (Member, Technical Staff)

  3. Division 5833, Sandia Laboratories, 87185, Albuquerque, NM

    T. J. Lutz (Engineering and Science Assistant)

Authors
  1. R. Weisinger
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  2. L. S. Costin
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  3. T. J. Lutz
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Additional information

This work was sponsored by the U.S. Department of Energy under Contract AT(29-1)-789.

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Weisinger, R., Costin, L.S. & Lutz, T.J. K Ic and J-resistance-curve measurements on Nevada tuff. Experimental Mechanics 20, 68–72 (1980). https://doi.org/10.1007/BF02321037

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  • DOI: https://doi.org/10.1007/BF02321037

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