PSI - Issue 6

Y.V. Petrov et al. / Procedia Structural Integrity 6 (2017) 134–139 Author name / Structural Integrity Procedia 00 (2017) 000 – 000

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simultaneously. This region extends from 3-4 to 10-15 cm. The circles denote the spall sections formed during the experiments. All the spall sections fixed in the experiment, fall into the region in which the destruction condition is realized at the smallest instants of time.

5. Conclusion

Thus, the observed unstable behavior of the fracture zone formed in the conditions of the spalling can be explained on the basis of the structural-temporal approach, based on the concept of the incubation time of fracture. The method makes it possible to efficiently predict both the critical characteristics of pulses leading to destruction of material and the qualitative geometric characteristics of the spall zone in the series of tests.

Acknowledgements

The work was supported by the Russian Science Foundation (RNF 17-11-01053).

References

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Petrov Y.V., Utkin A.A. Sov. Mater. Science, 1989, 25(2), 153-156 Petrov Y.V., Utkin A.A. Technical Physics, 2015, 60(8), 1162-1166