Abstract
The paper studies how the stress state of the interface between structural elements in a block-structured medium affects its deformation response to dynamic loading. It is shown that the normalized shear stress and mean stress are the major factors that determine the deformation response of the interface. We propose to describe the dependence of the value of induced irreversible displacement at the interface on the normalized shear stress using a logistic function. The central point of this function is the point of transition from the quasi-elastic to quasi-plastic stage of the interface shear deformation. The obtained empirical dependences are important for understanding the mechanism of irreversible strain accumulation in fault zone fragments and, particularly, for the development of an earlier proposed approach to estimate the characteristic level of active shear stresses in separate tectonic fault regions.
| Original language | English |
|---|---|
| Pages (from-to) | 136-148 |
| Number of pages | 13 |
| Journal | Physical Mesomechanics |
| Volume | 19 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Apr 2016 |
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Keywords
- block-structured medium
- diagnostics
- dynamic impact
- fault zone
- interface
- irreversible displacement
- logistic function
- movable cellular automata method
- numerical simulation
- shear stress
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Surfaces and Interfaces
Cite this
Effect of dynamic stress state perturbation on irreversible strain accumulation at interfaces in block-structured media. / Grigoriev, A. S.; Shilko, E. V.; Astafurov, S. V.; Dimaki, A. V.; Vysotsky, E. M.; Psakhie, S. G.
In: Physical Mesomechanics, Vol. 19, No. 2, 01.04.2016, p. 136-148.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of dynamic stress state perturbation on irreversible strain accumulation at interfaces in block-structured media
AU - Grigoriev, A. S.
AU - Shilko, E. V.
AU - Astafurov, S. V.
AU - Dimaki, A. V.
AU - Vysotsky, E. M.
AU - Psakhie, S. G.
PY - 2016/4/1
Y1 - 2016/4/1
N2 - The paper studies how the stress state of the interface between structural elements in a block-structured medium affects its deformation response to dynamic loading. It is shown that the normalized shear stress and mean stress are the major factors that determine the deformation response of the interface. We propose to describe the dependence of the value of induced irreversible displacement at the interface on the normalized shear stress using a logistic function. The central point of this function is the point of transition from the quasi-elastic to quasi-plastic stage of the interface shear deformation. The obtained empirical dependences are important for understanding the mechanism of irreversible strain accumulation in fault zone fragments and, particularly, for the development of an earlier proposed approach to estimate the characteristic level of active shear stresses in separate tectonic fault regions.
AB - The paper studies how the stress state of the interface between structural elements in a block-structured medium affects its deformation response to dynamic loading. It is shown that the normalized shear stress and mean stress are the major factors that determine the deformation response of the interface. We propose to describe the dependence of the value of induced irreversible displacement at the interface on the normalized shear stress using a logistic function. The central point of this function is the point of transition from the quasi-elastic to quasi-plastic stage of the interface shear deformation. The obtained empirical dependences are important for understanding the mechanism of irreversible strain accumulation in fault zone fragments and, particularly, for the development of an earlier proposed approach to estimate the characteristic level of active shear stresses in separate tectonic fault regions.
KW - block-structured medium
KW - diagnostics
KW - dynamic impact
KW - fault zone
KW - interface
KW - irreversible displacement
KW - logistic function
KW - movable cellular automata method
KW - numerical simulation
KW - shear stress
UR - http://www.scopus.com/inward/record.url?scp=84973915662&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973915662&partnerID=8YFLogxK
U2 - 10.1134/S1029959916020041
DO - 10.1134/S1029959916020041
M3 - Article
VL - 19
SP - 136
EP - 148
JO - Physical Mesomechanics
JF - Physical Mesomechanics
SN - 1029-9599
IS - 2
ER -