Mechanics of fatigue crack closurePapers are presented on plasticity induced crack closure, crack closure in fatigue crack growth, the dependence of crack closure on fatigue loading variables, and a procedure for standardizing crack closure levels. Also considered are a statistical approach to crack closure determination, the crack closure behavior of surface cracks under pure bending, closure measurements on short fatigue cracks, and crack closure under plane strain conditions. Other topics include fatigue crack closure behavior at high stress ratios, the use of acoustic waves for the characterization of closed fatigue cracks, and the influence of fatigue crack wake length and state of stress on crack closure.
Document ID
19890030030
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Newman, J. C., Jr. (NASA Langley Research Center Hampton, VA, United States)
Elber, Wolf (U.S. Army, Army Aerostructures Directorate, Hampton VA, United States)