Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-Rayleigh and supershear regimes

Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-Rayleigh and supershear regimes

Bibliographic Details
Parent link:AIP Conference Proceedings
Vol. 1623 : International Conference on Physical Mesomechanics of Multilevel Systems 2014, Tomsk, Russia, 3–5 September 2014.— 2014.— [P. 571-574]
Main Author: Shilko E. V. Evgeny
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ)
Other Authors: Psakhie S. G. Sergey Grigorievich
Summary:Title screen
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.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2014
Subjects:
электронный ресурс
труды учёных ТПУ
трещины
продольные сдвиги
безразмерные параметры
теоретические исследования
Online Access:http://dx.doi.org/10.1063/1.4901500
http://earchive.tpu.ru/handle/11683/35753
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=641931

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