Abstract
The paper studies the formation of strain-induced roughness on an initially flat surface of materials with a modified surface layer in tension. The dynamic boundary value problem of mechanics is solved numerically by the finite difference method for plane strain. The curvilinear surface layer-substrate interface is specified explicitly in the calculations. The mechanical response of the steel substrate and surface layer is described by elastoplastic models with isotropic hardening and elastic-brittle fracture models, respectively. The surface roughness shape and amplitude are found to depend on the thickness of both elastic and high-strength plastic layers with sinusoidal geometry of the hardened layer-substrate interface.
Original language | English |
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Pages (from-to) | 81-87 |
Number of pages | 7 |
Journal | Physical Mesomechanics |
Volume | 18 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2015 |
Externally published | Yes |
Keywords
- curvilinear interface
- materials with coatings
- mechanics of structured media
- numerical modeling
ASJC Scopus subject areas
- Condensed Matter Physics
- Surfaces and Interfaces
- Mechanics of Materials
- Materials Science(all)