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Abstract
Examples are presented when propagation of the boundaries of the zones of frictional sliding or elastic shear propagate with the speed of the longitudinal wave (or p-wave) and thus can be confused with the instances of intersonic fracture propagation. In these examples the mechanism of intersonic sliding/shear zone propagation is the longitudinal elastic deformation of the ma-terial surrounding the zone and hence controlled by the longitudinal wave velocity. Two simple models of intersonic sliding/shear zone propagation are considered: a frictional sliding of an elastic rod and shearing of an elastic rod on shear Winkler foundation. It is presumed that the shear Winkler layer can have either the conventional positive stiffness or apparent negative stiffness. In all these cases the sliding/shear zone propagates with the longitudinal wave velocity. In the case of negative stiffness of the Winkler layer the deformation rapidly increases with time reflecting the presence of influx of the external energy required by the system that realises negative stiffness.
Original language | English |
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Article number | 103795 |
Number of pages | 12 |
Journal | International Journal of Engineering Science |
Volume | 183 |
DOIs | |
Publication status | Published - 1 Feb 2023 |
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Dive into the research topics of 'Inter-sonic propagation of shear zone as an effect of longitudinal deformation'. Together they form a unique fingerprint.Projects
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Constricted hydraulic fracture opening
Dyskin, A. (Investigator 01), Pasternak, E. (Investigator 02), Gurevich, B. (Investigator 03), Lebedev, M. (Investigator 04), Bunger, A. (Investigator 05) & Shapiro, S. (Investigator 06)
ARC Australian Research Council
6/06/19 → 31/12/24
Project: Research