Abstract
The mechanism involved in fatigue crack propagation in the surface layer of a flat specimen subjected to alternating bending is studied, using a multiscale approach adopted in physical mesomechanics. The incompatibility of channeled plastic shear strains in the surface layer with accommodation elastic strains in the substrate is shown to be responsible for fatigue crack propagation as a nonlinear rotational autowave process.
Original language | English |
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Pages (from-to) | 112-123 |
Number of pages | 12 |
Journal | Physical Mesomechanics |
Volume | 14 |
Issue number | 3-4 |
DOIs | |
Publication status | Published - 2011 |
Keywords
- Channeling
- Fatigue fracture
- Nonlinear autowave process
- Rotational deformation modes
- Surface layer
ASJC Scopus subject areas
- Mechanics of Materials
- Materials Science(all)
- Condensed Matter Physics
- Surfaces and Interfaces