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Proceedings Papers

Effect of Coal Fouling on Railroad Ballast Under Direct Shear Loading Conditions

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Gundavaram Dinesh, Syed Khaja Karimullah Hussaini
Proc. ASME. JRC2020, 2020 Joint Rail Conference, V001T08A001, April 20–22, 2020
Publisher: American Society of Mechanical Engineers
Paper No: JRC2020-8010
https://doi.org/10.1115/JRC2020-8010
View Paper titled, Effect of Coal Fouling on Railroad Ballast Under Direct Shear Loading Conditions
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Topics: Coal, Contamination, Friction, Railroads, Shear (Mechanics), Shear strength
Proceedings Papers

Design and Strength Evaluation of Laser-Welded Carbody for Railway Vehicles

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Qi Luo, Chunyu Zhang, Ziwen Fang, Kefei Wang, Jianran Wang, Haifeng Hong, Hongxiao Wang, Steven Kirkpatrick
Proc. ASME. JRC2019, 2019 Joint Rail Conference, V001T08A001, April 9–12, 2019
Publisher: American Society of Mechanical Engineers
Paper No: JRC2019-1222
https://doi.org/10.1115/JRC2019-1222
View Paper titled, Design and Strength Evaluation of Laser-Welded Carbody for Railway Vehicles
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Topics: Design, Lasers, Railway vehicles, Finite element analysis, Laser welding, Simulation, Stainless steel, Welding, Automobiles, Engineers
Proceedings Papers

Railway Ballast Strength and Permeability Affecting Track Performance Under Dry and Wet Conditions

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Issam Qamhia, Maximilian Orihuela, Scott Schmidt, Erol Tutumluer, Maziar Moaveni, Colin Basye, Dingqing Li
Proc. ASME. JRC2018, 2018 Joint Rail Conference, V001T01A021, April 18–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: JRC2018-6256
https://doi.org/10.1115/JRC2018-6256
View Paper titled, Railway Ballast Strength and Permeability Affecting Track Performance Under Dry and Wet Conditions
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Topics: Permeability, Railroads, Shear strength, Testing, Trains, Abrasion, Density, Drainage, Dynamic testing (Materials), Flow (Dynamics)
Proceedings Papers

Simulating Ballast Breakage Under Repeated Loading Using the Discrete Element Method

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Beema Dahal, S. M. Naziur Mahmud, Debakanta Mishra
Proc. ASME. JRC2018, 2018 Joint Rail Conference, V001T01A003, April 18–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: JRC2018-6117
https://doi.org/10.1115/JRC2018-6117
View Paper titled, Simulating Ballast Breakage Under Repeated Loading Using the Discrete Element Method
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Topics: Discrete element methods, Bond strength, Particulate matter, Railroads, Stress, Computer simulation, Cycles, Deformation, Drainage, Particle size
Proceedings Papers

Development of ‘Coarse to Fine Ratio’ As a New Gradation Parameter to Study Ballast Packing

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S. M. Naziur Mahmud, Debakanta Mishra
Proc. ASME. JRC2018, 2018 Joint Rail Conference, V001T01A004, April 18–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: JRC2018-6125
https://doi.org/10.1115/JRC2018-6125
View Paper titled, Development of ‘Coarse to Fine Ratio’ As a New Gradation Parameter to Study Ballast Packing
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Topics: Packing (Shipments), Packings (Cushioning), Particulate matter, Railroads, Shear strength, Classification, Computer simulation, Construction, Design, Discrete element methods
Proceedings Papers

Effect of Geogrid Inclusion on Ballast Resilient Modulus: The Concept of ‘Geogrid Gain Factor’

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S. M. Naziur Mahmud, Debakanta Mishra, David O. Potyondy
Proc. ASME. JRC2018, 2018 Joint Rail Conference, V001T01A005, April 18–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: JRC2018-6126
https://doi.org/10.1115/JRC2018-6126
View Paper titled, Effect of Geogrid Inclusion on Ballast Resilient Modulus: The Concept of ‘Geogrid Gain Factor’
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Topics: Construction, Cycles, Design, Discrete element methods, Modeling, Particle size, Particulate matter, Railroads, Shear strength, Stress
Proceedings Papers

Influence of Fouling and Water Content of Ballast on Railway Substructure Bearing Capacity

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A. K. Rohrman, H. F. Kashani, C. L. Ho
Proc. ASME. JRC2017, 2017 Joint Rail Conference, V001T01A010, April 4–7, 2017
Publisher: American Society of Mechanical Engineers
Paper No: JRC2017-2286
https://doi.org/10.1115/JRC2017-2286
View Paper titled, Influence of Fouling and Water Content of Ballast on Railway Substructure Bearing Capacity
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Topics: Load bearing capacity, Railroads, Water, Computer software, Coulombs, Stability, Abrasion, Bearings, Continuous footings, Equilibrium (Physics)
Proceedings Papers

Effect of Particle Size and Shape Characteristics on Ballast Shear Strength: A Numerical Study Using the Direct Shear Test

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Debakanta Mishra, S. M. Naziur Mahmud
Proc. ASME. JRC2017, 2017 Joint Rail Conference, V001T01A014, April 4–7, 2017
Publisher: American Society of Mechanical Engineers
Paper No: JRC2017-2322
https://doi.org/10.1115/JRC2017-2322
View Paper titled, Effect of Particle Size and Shape Characteristics on Ballast Shear Strength: A Numerical Study Using the Direct Shear Test
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Topics: Particle size, Shapes, Shear (Mechanics), Shear strength, Railroads, Computer simulation, Particulate matter, Discrete element methods, Stress, Construction
Proceedings Papers

Introduction to Chemical Stabilization of Unstable Trackbeds

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George A. Tannoury, Steven D. Schrock
Proc. ASME. JRC2016, 2016 Joint Rail Conference, V001T01A021, April 12–15, 2016
Publisher: American Society of Mechanical Engineers
Paper No: JRC2016-5779
https://doi.org/10.1115/JRC2016-5779
View Paper titled, Introduction to Chemical Stabilization of Unstable Trackbeds
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Topics: Compacting, Construction equipment, Contamination, Deformation, Density, Granular materials, Maintenance, Membranes, Polymers, Railroads
Proceedings Papers

Influence of Water Content on the Behavior of Partially Saturated Fouled Ballast

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Zhenning Yang, Carlton L. Ho, Richard Joy, Nandan C. Dabhade
Proc. ASME. JRC2016, 2016 Joint Rail Conference, V001T01A006, April 12–15, 2016
Publisher: American Society of Mechanical Engineers
Paper No: JRC2016-5724
https://doi.org/10.1115/JRC2016-5724
View Paper titled, Influence of Water Content on the Behavior of Partially Saturated Fouled Ballast
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Topics: Water, Coulombs, Shear strength, Cohesion, Elastic moduli, Friction, Concretes, Cycles, Deformation, Freezing
Proceedings Papers

Moisture Effects on Degraded Ballast Shear Strength Behavior

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Yu Qian, Debakanta Mishra, Erol Tutumluer, Youssef M. A. Hashash, Jamshid Ghaboussi
Proc. ASME. JRC2016, 2016 Joint Rail Conference, V001T01A034, April 12–15, 2016
Publisher: American Society of Mechanical Engineers
Paper No: JRC2016-5840
https://doi.org/10.1115/JRC2016-5840
View Paper titled, Moisture Effects on Degraded Ballast Shear Strength Behavior
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Topics: Shear strength, Abrasion, Drainage, Particulate matter, Stress, Traffic, Coal, Contamination, Dust, Soil
Proceedings Papers

Surface Wave Testing for Characterization of Ballast and Foundation Layers

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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
Publisher: American Society of Mechanical Engineers
Paper No: JRC2014-3782
https://doi.org/10.1115/JRC2014-3782
View Paper titled, Surface Wave Testing for Characterization of Ballast and Foundation Layers
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Topics: Design, Electromagnetic radiation, Maintenance, Mechanical properties, Radar, Rails, Safety, Shear strength, Soil, Stiffness
Proceedings Papers

Effects of Ballast Degradation on Permanent Deformation Behavior From Large-Scale Triaxial Tests

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Yu Qian, Erol Tutumluer, Youssef M. A. Hashash, Jamshid Ghaboussi
Proc. ASME. JRC2014, 2014 Joint Rail Conference, V001T01A022, April 2–4, 2014
Publisher: American Society of Mechanical Engineers
Paper No: JRC2014-3806
https://doi.org/10.1115/JRC2014-3806
View Paper titled, Effects of Ballast Degradation on Permanent Deformation Behavior From Large-Scale Triaxial Tests
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Topics: Deformation, Particulate matter, Stress, Abrasion, Aggregates (Building materials), Coal, Contamination, Drainage, Dust, Mechanical behavior
Proceedings Papers

Ballast Direct Shear Testing

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Timothy D. Stark, Robert H. Swan, Jr., Zehong Yuan
Proc. ASME. JRC2014, 2014 Joint Rail Conference, V001T01A003, April 2–4, 2014
Publisher: American Society of Mechanical Engineers
Paper No: JRC2014-3714
https://doi.org/10.1115/JRC2014-3714
View Paper titled, Ballast Direct Shear Testing
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Topics: Shear (Mechanics), Testing, Shear strength, Stress, ASTM International, Railroads, Weight (Mass)
Proceedings Papers

Seismic Surface Wave Testing for Track Substructure Assessment

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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
Publisher: American Society of Mechanical Engineers
Paper No: JRC2014-3776
https://doi.org/10.1115/JRC2014-3776
View Paper titled, Seismic Surface Wave Testing for Track Substructure Assessment
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Topics: Surface waves (Fluid), Testing, Computer simulation, Accelerometers, Excitation, Inspection, Maintenance, Railroads, Safety, Seismic waves
Proceedings Papers

Seismic Testing for Track Substructure (Ballast and Subgrade) Assessment for Passenger/Freight Corridors

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Timothy D. Stark, Soheil Nazarian, Carlton L. Ho, Erol Tutumluer
Proc. ASME. JRC2013, 2013 Joint Rail Conference, V001T01A013, April 15–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: JRC2013-2489
https://doi.org/10.1115/JRC2013-2489
View Paper titled, Seismic Testing for Track Substructure (Ballast and Subgrade) Assessment for Passenger/Freight Corridors
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Topics: Deformation, Inspection, Numerical analysis, Railroads, Safety, Seismic waves, Shear modulus, Shear strength, Shear waves, Testing
Proceedings Papers

Polyurethane Coating of Railroad Ballast Aggregate for Improved Performance

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Marcus S. Dersch, Erol Tutumluer, Calvin T. Peeler, David K. Bower
Proc. ASME. JRC2010, 2010 Joint Rail Conference, Volume 1, 337-342, April 27–29, 2010
Publisher: American Society of Mechanical Engineers
Paper No: JRC2010-36215
https://doi.org/10.1115/JRC2010-36215
View Paper titled, Polyurethane Coating of Railroad Ballast Aggregate for Improved Performance
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Topics: Coating processes, Coatings, Railroads, Urethane elastomers, Shear (Mechanics), Stress, Particulate matter, Testing, Trains, Drainage