Fatigue Crack Tip Strains in 7075-T6 Aluminum Alloy by Stereoimaging and Their Use in Crack Growth Models
- 1 January 1983
- book chapter
- Published by ASTM International
- p. 371-399
- https://doi.org/10.1520/stp30565s
Abstract
Detailed quantitative measurements of crack tip strains have been made for near-threshold fatigue cracks in 7075-T6 aluminum specimens grown in a vacuum environment. In addition, crack tip opening displacements and crack growth rates have been measured. These data are used in three related models which examine cumulative and critical strain and critical energy dissipation as criteria for crack advance. These models are then examined in light of observed crack growth patterns.Keywords
This publication has 22 references indexed in Scilit:
- Application of crack-tip-strain loop to fatigue-crack propagationExperimental Mechanics, 1981
- Theoretical model for FCGR near the thresholdMetallurgical Transactions A, 1981
- Plastic work of fatigue crack propagation in steels and aluminum alloysMetallurgical Transactions A, 1981
- Fatigue of α-β brass two-phase bicrystalsActa Metallurgica, 1980
- Fatigue-crack-tip plastic strains by the stereoimaging techniqueExperimental Mechanics, 1980
- An Evaluation of the summation of cyclic plastic strain damage in two high strength aluminum alloysMetallurgical Transactions A, 1979
- Measurement of strain distribution by the moiré fringe multiplication method at a tip of propagating fatigue crackInternational Journal of Fracture, 1977
- Fatigue crack propagation and cyclic deformation at a crack tipInternational Journal of Fracture, 1974
- Theory of fatigue crack growth based on a BCS crack theory with work hardeningInternational Journal of Fracture, 1973
- Fatigue crack propagation in trip steelsMetallurgical Transactions, 1972