Abstract
The paper reports on theoretical and experimental investigations on deformation and fracture patterns of surface hardened materials. Simulation results on modeling processes of energy distribution and transformation at coating-substrate interface of a solid under loading by means of Stochastic Excitable Cellular Automata (SECA)-method are described. In doing so, deformable solid is considered as a multilevel system. The method allows taking into account self-organization of configuration perturbations for different levels of the system. An important role of stochastic modulation of an inelastic deformation at the interface in origin of inelastic deformation is discussed. It is shown experimentally that formation of toothed interface between nanostructured coating and substrate also results in formation of chessboard pattern of stress distribution there. This is manifested by multiple cracking of the coating with preferential crack orientation toward direction of maximum tangential stresses. This phenomenon could give rise to increase both strength and ductility of the surface hardened materials.
| Original language | English |
|---|---|
| Title of host publication | 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures |
| Pages | 445-451 |
| Number of pages | 7 |
| Volume | 1 |
| Publication status | Published - 2008 |
| Event | 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 - Brno, Czech Republic Duration: 2 Sep 2008 → 5 Sep 2008 |
Other
| Other | 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures, ECF17 |
|---|---|
| Country | Czech Republic |
| City | Brno |
| Period | 2.9.08 → 5.9.08 |
Fingerprint
Keywords
- Coatings
- Cracking
- Interface
- Mesomechanics
- Multilevel approach
ASJC Scopus subject areas
- Civil and Structural Engineering
Cite this
Mesomechanics of multiple cracking of nanostructured gradient coatings under loading. / Panin, Sergey; Panin, Victor; Panin, Alexey; Sergeev, Victor Petrovich; Evtushenko, Evgenii; Moiseenko, Dmitrii.
17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures. Vol. 1 2008. p. 445-451.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Mesomechanics of multiple cracking of nanostructured gradient coatings under loading
AU - Panin, Sergey
AU - Panin, Victor
AU - Panin, Alexey
AU - Sergeev, Victor Petrovich
AU - Evtushenko, Evgenii
AU - Moiseenko, Dmitrii
PY - 2008
Y1 - 2008
N2 - The paper reports on theoretical and experimental investigations on deformation and fracture patterns of surface hardened materials. Simulation results on modeling processes of energy distribution and transformation at coating-substrate interface of a solid under loading by means of Stochastic Excitable Cellular Automata (SECA)-method are described. In doing so, deformable solid is considered as a multilevel system. The method allows taking into account self-organization of configuration perturbations for different levels of the system. An important role of stochastic modulation of an inelastic deformation at the interface in origin of inelastic deformation is discussed. It is shown experimentally that formation of toothed interface between nanostructured coating and substrate also results in formation of chessboard pattern of stress distribution there. This is manifested by multiple cracking of the coating with preferential crack orientation toward direction of maximum tangential stresses. This phenomenon could give rise to increase both strength and ductility of the surface hardened materials.
AB - The paper reports on theoretical and experimental investigations on deformation and fracture patterns of surface hardened materials. Simulation results on modeling processes of energy distribution and transformation at coating-substrate interface of a solid under loading by means of Stochastic Excitable Cellular Automata (SECA)-method are described. In doing so, deformable solid is considered as a multilevel system. The method allows taking into account self-organization of configuration perturbations for different levels of the system. An important role of stochastic modulation of an inelastic deformation at the interface in origin of inelastic deformation is discussed. It is shown experimentally that formation of toothed interface between nanostructured coating and substrate also results in formation of chessboard pattern of stress distribution there. This is manifested by multiple cracking of the coating with preferential crack orientation toward direction of maximum tangential stresses. This phenomenon could give rise to increase both strength and ductility of the surface hardened materials.
KW - Coatings
KW - Cracking
KW - Interface
KW - Mesomechanics
KW - Multilevel approach
UR - http://www.scopus.com/inward/record.url?scp=84866098506&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84866098506&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84866098506
SN - 9781617823190
VL - 1
SP - 445
EP - 451
BT - 17th European Conference on Fracture 2008: Multilevel Approach to Fracture of Materials, Components and Structures
ER -