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Title: | Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-Rayleigh and supershear regimes |
Authors: | Shilko, Evgeny Psakhie, Sergey Grigorievich |
Keywords: | трещины; продольные сдвиги; безразмерные параметры; теоретические исследования |
Issue Date: | 2014 |
Publisher: | AIP Publishing |
Citation: | Shilko E. V. Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-Rayleigh and supershear regimes / E. V. Shilko, S. G. Psakhie // AIP Conference Proceedings. — 2014. — Vol. 1623 : International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russia, 3–5 September 2014 : [proceedings]. — [P. 571-574]. |
Abstract: | In the paper we present the results of the theoretical study of some fundamental aspects of mode II crack propagation in conventional sub-Rayleigh regime and transition to intersonic regime. It is shown that development of a sub-Rayleigh shear crack is determined in many respects by elastic vortex traveling ahead of the crack tip at a shear wave velocity. Formation of such a vortex helps to better understand the well-known phenomenon of acceleration of a shear crack towards the longitudinal wave velocity. Simulation results have shown that due to self-similarity of shear crack propagation the conditions of sub-Rayleigh to intersonic transition depend on dimensionless material and crack parameters. Two key dimensionless parameters are proposed. |
URI: | http://earchive.tpu.ru/handle/11683/35753 |
Appears in Collections: | Материалы конференций |
Files in This Item:
File | Description | Size | Format | |
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dx.doi.org-10.1063-1.4901500.pdf | 581,32 kB | Adobe PDF | View/Open |
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