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Erschienen in:
1981 | OriginalPaper | Buchkapitel
Moving Dislocations in a Shock Front
verfasst von : Johannes Weertman
Erschienen in: Shock Waves and High-Strain-Rate Phenomena in Metals
Verlag: Springer US
Enthalten in: Professional Book Archive
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Experimental and theoretical results on isolated moving dislocations are used as the basis to deduce group behavior of dislocations within and just behind shock fronts. For strong shocks it is concluded that the shock front consists of a Smith interface of supersonic dislocations with a narrow zone immediately behind it of high density subsonic moving dislocations. The Smith interface does not exist in weaker shocks. The dislocation density increases as the square of the shock wave pressure for weaker shocks and becomes almost independent of shock pressure for very strong shocks.