Abstract
We show that one-level criteria for crack propagation in fracture mechanics should be supplemented by taking into account structure transformations in the local curvature regions of the crystal lattice in front of the crack tip. We develop a modified method of excitable cellular automata that takes into account the local torques in the crystal lattice with broken translational invariance and permits calculating the work of rotational deformation modes in crack propagation. Experimental data confirming the multilevel criteria of fracture mesomechanics are presented.
| Original language | English |
|---|---|
| Pages (from-to) | 400-411 |
| Number of pages | 12 |
| Journal | Mechanics of Solids |
| Volume | 50 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 4 Jul 2015 |
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Keywords
- fracture criterion
- hierarchical system
- nonlinearity
- structure curvature
- torque
ASJC Scopus subject areas
- Mechanics of Materials
- Physics and Astronomy(all)
Cite this
Physical fracture mesomechanics of solids treated as nonlinear hierarchically organized systems. / Moiseenko, D. D.; Panin, V. E.
In: Mechanics of Solids, Vol. 50, No. 4, 04.07.2015, p. 400-411.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Physical fracture mesomechanics of solids treated as nonlinear hierarchically organized systems
AU - Moiseenko, D. D.
AU - Panin, V. E.
PY - 2015/7/4
Y1 - 2015/7/4
N2 - We show that one-level criteria for crack propagation in fracture mechanics should be supplemented by taking into account structure transformations in the local curvature regions of the crystal lattice in front of the crack tip. We develop a modified method of excitable cellular automata that takes into account the local torques in the crystal lattice with broken translational invariance and permits calculating the work of rotational deformation modes in crack propagation. Experimental data confirming the multilevel criteria of fracture mesomechanics are presented.
AB - We show that one-level criteria for crack propagation in fracture mechanics should be supplemented by taking into account structure transformations in the local curvature regions of the crystal lattice in front of the crack tip. We develop a modified method of excitable cellular automata that takes into account the local torques in the crystal lattice with broken translational invariance and permits calculating the work of rotational deformation modes in crack propagation. Experimental data confirming the multilevel criteria of fracture mesomechanics are presented.
KW - fracture criterion
KW - hierarchical system
KW - nonlinearity
KW - structure curvature
KW - torque
UR - http://www.scopus.com/inward/record.url?scp=84940747048&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940747048&partnerID=8YFLogxK
U2 - 10.3103/S0025654415040068
DO - 10.3103/S0025654415040068
M3 - Article
AN - SCOPUS:84940747048
VL - 50
SP - 400
EP - 411
JO - Mechanics of Solids
JF - Mechanics of Solids
SN - 0025-6544
IS - 4
ER -