Conclusions
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1.
The experimental damping of shock waves in iron can be described well with a model incorporating viscous damping of dislocations in subbarrier motion; it follows that the damping of the elastic precursor of the shock wave as it travels is due primarily to stress relaxation resulting from the motion of these dislocations.
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2.
The ratio of the constant B characterizing the viscous damping of dislocations to the reduced density N of mobile dislocations which is found from the damping of an elastic shock wave is close to the value of this ratio found from the damping of ultrasound. Accordingly, experiments involving the damping of elastic shock waves may be considered an independent source of B/N values.
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Additional information
Institute of Problems of Strength, Academy of Sciences of the Ukrainian SSR, Kiev. Translated from Problemy Prochnosti, No. 7, pp. 31–35, July, 1970.
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Krasovskii, A.Y. Damping of elastic shock waves in iron caused by viscous damping of dislocations. Strength Mater 2, 636–640 (1970). https://doi.org/10.1007/BF01527416
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DOI: https://doi.org/10.1007/BF01527416