Email this article Relationship Between the Crack Velocity, Fractal Dimension, and Dynamic Fracture Toughness of a Material
- Authors: Bragov A.M.1, Konstantinov A.Y.1, Kuznetsov A.V.2, Lomunov A.K.1, Savenkov G.G.2,3
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Affiliations:
- Research Institute of Mechanics
- Armalit Machine-Building Plant
- St. Petersburg State Technological Institute (Technical University)
- Issue: Vol 59, No 1 (2018)
- Pages: 132-137
- Section: Article
- URL: https://journals.rcsi.science/0021-8944/article/view/160916
- DOI: https://doi.org/10.1134/S0021894418010169
- ID: 160916
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Abstract
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.
About the authors
A. M. Bragov
Research Institute of Mechanics
Author for correspondence.
Email: bragov@mech.unn.ru
Russian Federation, Nizhnii Novgorod, 603950
A. Yu. Konstantinov
Research Institute of Mechanics
Email: bragov@mech.unn.ru
Russian Federation, Nizhnii Novgorod, 603950
A. V. Kuznetsov
Armalit Machine-Building Plant
Email: bragov@mech.unn.ru
Russian Federation, St. Petersburg, 198097
A. K. Lomunov
Research Institute of Mechanics
Email: bragov@mech.unn.ru
Russian Federation, Nizhnii Novgorod, 603950
G. G. Savenkov
Armalit Machine-Building Plant; St. Petersburg State Technological Institute (Technical University)
Email: bragov@mech.unn.ru
Russian Federation, St. Petersburg, 198097; St. Petersburg, 190013
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