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Proceedings Papers

Evaluating Fouled Ballast Using Seismic Surface Waves

Timothy D. Stark, Stephen T. Wilk, Hugh B. Thompson, II, Theodore R. Sussmann, Jr., Mark Baker, Carlton L. Ho
Proc. ASME. JRC2016, 2016 Joint Rail Conference, V001T01A002, April 12–15, 2016
Paper No: JRC2016-5714
DOI: https://doi.org/10.1115/JRC2016-5714
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Topics: Surface waves (Fluid), Railroads, Rails, Soil, Stress, Drainage, Emission spectroscopy, Maintainability, Pavement, Shear waves
Proceedings Papers

Multiple Frequency Ultrasonic Detection of Subsurface Near-Race Inclusions for Improved Fatigue Life Performance

Ping Hu, Joseph A. Turner, Constantine Tarawneh, Brent Wilson, Allen J. Fuller
Proc. ASME. JRC2015, 2015 Joint Rail Conference, V001T02A012, March 23–26, 2015
Paper No: JRC2015-5785
DOI: https://doi.org/10.1115/JRC2015-5785
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Topics: Bearings, Brittleness, Damage, Failure, Fatigue, Fatigue life, Heat, Inspection, Mechanical properties, Production management
Proceedings Papers

Surface Wave Testing for Characterization of Ballast and Foundation Layers

Hoda Azari, Deren Yuan, Soheil Nazarian, Timothy D. Stark, Carlton L. Ho, Thomas J. Dehlin
Proc. ASME. JRC2014, 2014 Joint Rail Conference, V001T01A019, April 2–4, 2014
Paper No: JRC2014-3782
DOI: https://doi.org/10.1115/JRC2014-3782
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Topics: Design, Electromagnetic radiation, Maintenance, Mechanical properties, Radar, Rails, Safety, Shear strength, Soil, Stiffness
Proceedings Papers

Seismic Surface Wave Testing for Track Substructure Assessment

Timothy D. Stark, Thomas J. Dehlin, Soheil Nazarian, Hoda Azari, Deren Yuan, Carlton L. Ho
Proc. ASME. JRC2014, 2014 Joint Rail Conference, V001T01A017, April 2–4, 2014
Paper No: JRC2014-3776
DOI: https://doi.org/10.1115/JRC2014-3776
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Topics: Surface waves (Fluid), Testing, Computer simulation, Accelerometers, Excitation, Inspection, Maintenance, Railroads, Safety, Seismic waves
Proceedings Papers

Characterization of Work Hardened Layers in Rails

Thomas Hay, Subash Jayaraman, Robert Hay, Ethan Ray
Proc. ASME. JRC2009, 2009 Joint Rail Conference, 51-55, March 4–5, 2009
Paper No: JRC2009-63017
DOI: https://doi.org/10.1115/JRC2009-63017
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Topics: Rails, Waves, Fatigue cracks, Hazards, Inspection, Railroads, Reliability, Rolling contact, Safety, Stress