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 |
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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)
Cite this
Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-rayleigh and supershear regimes. / Shilko, Evgeny V.; Psakhie, Sergey G.
AIP Conference Proceedings. Vol. 1623 American Institute of Physics Inc., 2014. p. 571-574.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Theoretical study of peculiarities of unstable longitudinal shear crack growth in sub-rayleigh and supershear regimes
AU - Shilko, Evgeny V.
AU - Psakhie, Sergey G.
PY - 2014
Y1 - 2014
N2 - 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.
AB - 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.
KW - Computer-aided simulation
KW - Dynamic mode II fracture
KW - Interface crack
KW - Movable cellular automaton method
KW - Self-similarity
KW - Sub-rayleigh regime
KW - Supershear regime
UR - http://www.scopus.com/inward/record.url?scp=84915747265&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84915747265&partnerID=8YFLogxK
U2 - 10.1063/1.4901500
DO - 10.1063/1.4901500
M3 - Conference contribution
SN - 9780735412606
VL - 1623
SP - 571
EP - 574
BT - AIP Conference Proceedings
PB - American Institute of Physics Inc.
ER -