Mechanism of growth of short cracks and durability of workpieces

Autor: Fishgoit, A. V., Maistrov, V. M., Rozanov, M. A.
Zdroj: Materials Science; July 1995, Vol. 30 Issue: 4 p424-430, 7p
Abstrakt: The principal regularities of the growth of short cracks were established by direct observation with a scanning electron microscope. We propose a model that describes their growth and enables one to calculate the kinetics of growth of short cracks from both a smooth surface and stress concentrators. The growth of shorts crack is represented as successive failures of periodically located structural obstacles upon accumulation of critical plastic strain under cyclic loading.
Databáze: Supplemental Index