Growth behavior of surface cracks in the circumferential plane of solid and hollow cylindersExperiments were conducted to study the growth behavior of surface fatigue cracks in the circumferential plane of solid and hollow cylinders. In the solid cylinders, the fatigue cracks were found to have a circular arc crack front with specific upper and lower limits to the arc radius. In the hollow cylinders, the fatigue cracks were found to agree accurately with the shape of a transformed semiellipse. A modification to the usual nondimensionalization expression used for surface flaws in flat plates was found to give correct trends for the hollow cylinder problem.
Document ID
19860058814
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Forman, R. G. (NASA Johnson Space Center Houston, TX, United States)
Shivakumar, V. (Lockheed Engineering and Management Services Co., Inc. Houston, TX, United States)