Relationship Between the Crack Velocity, Fractal Dimension, and Dynamic Fracture Toughness of a Material

被引:0
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作者
A. M. Bragov
A. Yu. Konstantinov
A. V. Kuznetsov
A. K. Lomunov
G. G. Savenkov
机构
[1] Lobachevsky State University,Research Institute of Mechanics
[2] Armalit Machine-Building Plant,undefined
[3] St. Petersburg State Technological Institute (Technical University),undefined
关键词
crack velocity; fractal dimension; dynamic fracture toughness;
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摘要
This paper presents the results of experimental studies of the crack propagation velocity and the dynamic fracture toughness of St. 45 steel and D16T Duralumin using a modified Kolsky method with a split Hopkinson bar. The results of microfractographic analysis of samples are given, and the fractal dimension is determined. The critical stress intensity factors are calculated using the obtained fractal dimension values.
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页码:132 / 137
页数:5
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