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Strength and Specific Fracture Energy of Metals Subjected to a Thermal Shock

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Abstract

Time dependences of spalling strength and critical specific fracture energy of some metals under a thermal shock initiated by x‐rays of a nuclear explosion are obtained. Under thermal‐shock conditions, the durability of metals decreases exponentially as the amplitude of the fracture stress increases. The critical specific fracture energy of metals subjected to a thermal shock increases with the duration of tensile stresses. Using an example of cones, conical shells, disks, and rods, it is shown that the geometric factor should be taken into account, which can reduce the fracture threshold and increase the degree of fracture of an object subjected to a thermal shock. This is a result of stress cumulation, occurrence of cumulative ejection of the material, and stability loss due to the action of powerful energy fluxes.

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REFERENCES

  1. S. Eliezer, I. Gilath, and T. Bar-Noy, “Laser-induced spall in metals: Experiment and simulation,” J. Appl. Phys., 67, No. 2, 715–724 (1990).

    Google Scholar 

  2. Physics of Nuclear Explosion, Vol.2: Explosive Action [in Russian], Fizmatlit, Nauka (1997).

  3. V. N. Aptukov, “Deformation and failure of a plate under a thermal shock,” Probl. Prochn., No. 12, 82–87 (1987).

    Google Scholar 

  4. E. K. Bonyushkin, B. L. Glushak, N. I. Zavada, et al., “Mechanisms of spalling of metals in the fast spaceheating regime in submicrosecond and submillimicrosecond ranges of durability,” J. Appl. Mech. Techn. Phys., 37, No. 6, 862–870 (1996).

    Google Scholar 

  5. V. K. Golubev, K. G. Rabinovich, and A. K. Chernyshev, “Special features of failure of copper foil under intense x-ray irradiation,” Zh. Tekhn. Fiz., 68, No. 2, 116–117 (1998).

    Google Scholar 

  6. A. M. Molitvin, I. P. Borin, and V. S. Bosamykin, “Durability of copper, nickel, titanium, brass, and bronze under impulsive irradiation,” J. Appl. Mech. Tech. Phys., 37, No. 6, 871–875 (1996).

    Google Scholar 

  7. I. P. Borin, V. S. Bosamykin, and A. M. Molitvin, “Durability of copper and its alloys under a pulsed electromagnetic action,” Fiz. Met. Metalloved., 81, No. 5, 170–175 (1996).

    Google Scholar 

  8. A. M. Molitvin and I. P. Borin, “Special features of spalling fracture of metals under a thermal shock,” Metally, No. 3, 93–98 (1998).

    Google Scholar 

  9. A. M. Molitvin, “Kinetic and energy approaches to the description of spalling fracture of copper and nickel under a thermal shock,” Metally, No. 3, 101–108 (2001).

    Google Scholar 

  10. A. M. Molitvin, “Kinetic and energy approaches to the description of spalling fracture of structural steels under a thermal shock,” Metally, No. 4, 66–71 (2002).

    Google Scholar 

  11. A. M. Molitvin, “Strength and speci_c fracture energy of metals subjected to a thermal shock,” in: V. E. Fortov (ed.), Physics of Extremal States of a Substance [in Russian], Chernogolovka (2002), pp. 121–123.

  12. A. M. Molitvin, I. P. Borin, and V. S. Bosamykin, Some geometrical effects of thermomechanical failure of metallic specimens under pulsed radiation,” J. Appl. Mech. Tech. Phys., 37, No. 5, 751–755 (1996).

    Google Scholar 

  13. E. N. Donskoi, “Algorithm and program _ELIZA for solving problems of compatible transfer of-radiation, electrons, and positrons by the Monte Carlo method,” Vopr. Atom. Nauki Tekh., Ser. Mat. Model. Fiz. Prots., No. 1, 3–6 (1993).

    Google Scholar 

  14. G. G. Ivanova, N. F. Gavrilov, V. I. Selin, and V. N. Safonov, “UP-OK program for solving one-dimensional problems of mechanics of continuous media in the one-dimensional complex,” Vopr. Atom. Nauki Tekhn. Ser. Met. Progr. Chisl. Resh. Zad. Mat. Fiz., No. 3, 11–14 (1982).

    Google Scholar 

  15. I. P. Borin, S. A. Novikov, A. P. Pogorelov, and V. A. Sinitsyn, “Kinetics of fracture of metals in the subsecond range of durability,” Dokl. Akad. Nauk SSSR, 266, No. 6, 1377–1380 (1982).

    Google Scholar 

  16. A. G. Ivanov and V. N. Mineev, “Scale criterion of brittle fracture of structures,” Dokl. Akad. Nauk SSSR, 220, No. 3, 575–578 (1975).

    Google Scholar 

  17. V. A. Ogorodnikov, A. G. Ivanov, V. I. Luchinin, et al., “Scaling effect in dynamic fracture (spallation) of brittle and ductile materials,” Combust. Expl. Shock Waves, 35, No. 1, 97–102 (1999).

    Google Scholar 

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Authors and Affiliations

  1. Institute of Experimental Physics, Sarov, 607188

    A. M. Molitvin

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  1. A. M. Molitvin
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Molitvin, A.M. Strength and Specific Fracture Energy of Metals Subjected to a Thermal Shock. Journal of Applied Mechanics and Technical Physics 44, 135–140 (2003). https://doi.org/10.1023/A:1021750301736

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  • DOI: https://doi.org/10.1023/A:1021750301736

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