Investigation of the Kinetics of Fatigue Macrocracks Under Transverse Shear
| Autor: | I. A. Verhun, S. T. Shtayura, T. M. Lenkovs’kyi, Ya. L. Ivanyts’kyi |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Structural material
Materials science Mechanical Engineering Kinetics 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Crack closure 020303 mechanical engineering & transports 0203 mechanical engineering Shear (geology) Mechanics of Materials Solid mechanics Transverse shear General Materials Science Crack resistance Composite material 0210 nano-technology |
| Zdroj: | Materials Science. 52:349-356 |
| ISSN: | 1573-885X 1068-820X |
| Popis: | We study the kinetics of shear macrocracks under the conditions of fatigue fracture by transverse shear of thermally hardened 65G steel with a troostite-sorbite structure for low-, middle-, and high-amplitude cyclic loads. We plot the kinetic diagrams of fatigue fracture with regard for the friction of the faces of a shear crack within the range of its growth rates covering up to six orders of magnitude. On the basis of the constructed dependence, we determine the principal and additional characteristics of cyclic crack resistance. We also study the contact interaction of the faces of fatigue cracks and the fractographic features of fracture under the conditions of low- and high-amplitude deformation by cyclic transverse shear. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|