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TECHNICAL PAPERS

An Experimental Investigation of Bending Fatigue Initiation and Propagation Lives

[+] Author and Article Information
Avinash Singh

GM Gear Center, GM Powertrain, General Motors Corporation, 30240 Oak Creek Dr., M/C 481-3WX-101, Wixom, MI 48393e-mail: avinash.singh@gm.com

J. Mech. Des 123(3), 431-435 (May 01, 2000) (5 pages) doi:10.1115/1.1370496 History: Received May 01, 2000
Copyright © 2001 by ASME
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References

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Manson, S. S., Frecke, J. C., and Ensign, C. R., 1967, “Applications of a Double Linear Damage Rule to Cumulative Fatigue,” Fatigue Crack Propagation, STP-415, American Society for Testing and Materials, Philadelphia, pp. 38.
Kaiser, J., 1950, “Untersuchungen uber das Auftreten Gerauschen Beim Zugversuch [An Investigation into the Occurrence of Noises in Tensile Tests or a Study of Acoustic Phenomena in Tensile Tests],” Ph.D. Dissertation Technische Hochschule Munchen, Munich, FRG.
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Morton,  H. L., Harrington,  R. M., and Bjeletich,  J. G., 1973, “Acoustic Emissions of Fatigue Crack Growth,” Eng. Fract. Mech., 5, No. 3, pp. 691.
Harris,  D. O., and Dunegan,  H. L., 1974, “Continuous Monitoring of Fatigue Crack Growth by Acoustic Emission Techniques,” Exp. Mech., 14, No. 2, pp. 71–81.
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Singh,  A., Houser,  D. R., and Vijayakar,  S., 1999, “Detecting Gear Tooth Breakage using Acoustic Emission: A Feasibility and Sensor Placement Study,” ASME J. Mech. Des., 121, No. 4, pp. 587–593.

Figures

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A typical S-N curve showing endurance limit
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Experimental setup of the bending fatigue fixture
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Schematic diagram of the experimental setup
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AE and load signals in the absence of AE activity
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AE signal due to crack propagation and the corresponding load signal
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AE signal due to crack initiation and the corresponding load signal
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Crack initiation, crack propagation and total life S-N curves for 4620M
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B10, B50, and B90 propagation S-N curves
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Comparison of the experimental B50 curves and the corresponding Manson’s approximate curves
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Comparison of the life predicted by Miner’s theory and the proposed two-stage method with experimental data

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