Abstract
The effect of hydrostatic stress on the growth of voids from inclusions located near the tips of deep and shallow notches in three-point bend specimens is analysed using slip-line field theory and the Rice-Tracey void growth model. The analysis explains qualitatively the observed dependence of the crack tip opening displacement δi at the initiation of a ductile tear in low carbon steel on the hydrostatic stress. Although a plot of the experimental values of δi normalised by the inclusion spacing against the inclusion spacing/size ratio do not agree well with the theory, the plot is a promising means of determining experimentally the dependence of δi on hydrostatic stress for any particular steel.
Original language | English |
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Pages (from-to) | 207-218 |
Number of pages | 12 |
Journal | International Journal of Fracture |
Volume | 51 |
Issue number | 3 |
DOIs | |
Publication status | Published - Oct 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- Computational Mechanics
- Modelling and Simulation
- Mechanics of Materials