Experimental Evaluation of Structural and Temporal Characteristics of Material Fracture Based on Magnetic Pulse Loading of Ring Samples

The study of fracture of thin aluminum rings due to shock loading generated by magnetic-pulse method was performed. This method provides experimental results on dynamic fracture under conditions of pure tension for a wide range of loading conditions. To simulate rapture of the ring samples a structu...

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Bibliographic Details
Published in:Technical physics 2019-05, Vol.64 (5), p.642-646
Main Authors: Morozov, V. A., Petrov, Yu. V., Sukhov, V. D.
Format: Article
Language:English
Subjects:
Aluminum
Analysis
Classical and Continuum Physics
Criteria
Fracture (Materials)
Fractures (Injuries)
Physics
Physics and Astronomy
Shock loading
Solid State
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Summary:The study of fracture of thin aluminum rings due to shock loading generated by magnetic-pulse method was performed. This method provides experimental results on dynamic fracture under conditions of pure tension for a wide range of loading conditions. To simulate rapture of the ring samples a structural-temporal fracture criterion was applied. This criterion allows for analysis of the effects which are characteristic for the dynamic experiments. The fracture incubation time value and ultimate stresses are calculated for the aluminum rings subjected to pulse loading. An analytical relationship between the critical stress and the fracture time are obtained and this relation is in good agreement with the experimental data.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784219050165