Publication detail
Evaluation of Near-Threshold Fatigue Crack Propagation under Mixed Mode II+III in ARMCO Iron
VOJTEK, T. POKLUDA, J. HOHENWARTER, A. PIPPAN, R.
Czech title
Evaluation of Near-Threshold Fatigue Crack Propagation under Mixed Mode II+III in ARMCO Iron
English title
Evaluation of Near-Threshold Fatigue Crack Propagation under Mixed Mode II+III in ARMCO Iron
Type
abstract
Language
en
Original abstract
The research was focused on the near-threshold fatigue crack propagation under mixed mode II+III in the ARMCO iron. The aim was to evaluate selected mixed-mode criteria to find a suitable description of the mixed-mode crack propagation. The data were taken from experiments on cylindrical specimens with circumferential crack made of the ARMCO iron and loaded by various combinations of modes II and III. The dependences of stress intensity factors (SIFs) in mode II and III on the polar angle as well as on the crack length were numerically calculated using FEM. For sorting out the mixed-mode data, three different formulae were used (each normalized to 1 when approaching the mixed-mode threshold).
Czech abstract
The research was focused on the near-threshold fatigue crack propagation under mixed mode II+III in the ARMCO iron. The aim was to evaluate selected mixed-mode criteria to find a suitable description of the mixed-mode crack propagation. The data were taken from experiments on cylindrical specimens with circumferential crack made of the ARMCO iron and loaded by various combinations of modes II and III. The dependences of stress intensity factors (SIFs) in mode II and III on the polar angle as well as on the crack length were numerically calculated using FEM. For sorting out the mixed-mode data, three different formulae were used (each normalized to 1 when approaching the mixed-mode threshold).
English abstract
The research was focused on the near-threshold fatigue crack propagation under mixed mode II+III in the ARMCO iron. The aim was to evaluate selected mixed-mode criteria to find a suitable description of the mixed-mode crack propagation. The data were taken from experiments on cylindrical specimens with circumferential crack made of the ARMCO iron and loaded by various combinations of modes II and III. The dependences of stress intensity factors (SIFs) in mode II and III on the polar angle as well as on the crack length were numerically calculated using FEM. For sorting out the mixed-mode data, three different formulae were used (each normalized to 1 when approaching the mixed-mode threshold).
Keywords in Czech
mode II+III, crack growth threshold, mixed-mode criteria, ARMCO iron
Keywords in English
mode II+III, crack growth threshold, mixed-mode criteria, ARMCO iron
Released
24.09.2012
Publisher
Institute of Physics of Materials
Location
Brno
ISBN
978-80-87434-05-5
Pages count
1