NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Effect of wall thickness and material on flexural fatigue of hollow rolling elementsHollow cylindrical bars were tested in a rolling-contact fatigue tester to determine the effects of material and outside diameter to inside diameter (OD/ID) ratios on fatigue failure mode and subsequent failure propagation. The range of applied loads with OD/ID ratios of 2.0, 1.6, 1.4, and 1.2 resulted in maximum tangential tensile stresses ranging from 165 to 655 MPa at the bore surface. Flexural failures of the hollow test bars occurred when this bore stress was 490 MPa or greater with AISI 52100 hollow bars and 338 MPa or greater with AISI M-50 hollow bars. Good correlation was obtained in relating the failures of these hollow bars with flexural failures of drilled balls from full-scale bearing test published previously.
Document ID
19780039446
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bamberger, E. N.
(General Electric Co. Evendale, Ohio, United States)
Parker, R. J.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Structural Mechanics
Report/Patent Number
ASME PAPER 77-LUB-14
Accession Number
78A23355
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available