1. Fatigue crack closure under cyclic tension;Elber;Engng Fracture Mech.,1970
2. Mechanics of Fatigue Crack Closure,1988
3. Results of the round robin on opening-load measurement;Phillips,1989
4. Change of fatigue closure level with gauge location along crack line;Ohta;Int. J. Fracture,1979
5. Observations on fatigue crack opening load determinations;Jones;Int. J. Fracture,1978