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.
Original language | English |
---|---|
Title of host publication | AIP Conference Proceedings |
Publisher | American Institute of Physics Inc. |
Pages | 571-574 |
Number of pages | 4 |
Volume | 1623 |
ISBN (Print) | 9780735412606 |
DOIs | |
Publication status | Published - 2014 |
Event | International Conference on Physical Mesomechanics of Multilevel Systems 2014 - Tomsk, Russian Federation Duration: 3 Sep 2014 → 5 Sep 2014 |
Other
Other | International Conference on Physical Mesomechanics of Multilevel Systems 2014 |
---|---|
Country | Russian Federation |
City | Tomsk |
Period | 3.9.14 → 5.9.14 |
Keywords
- Computer-aided simulation
- Dynamic mode II fracture
- Interface crack
- Movable cellular automaton method
- Self-similarity
- Sub-rayleigh regime
- Supershear regime
ASJC Scopus subject areas
- Physics and Astronomy(all)