@inproceedings{596c4fafb2774277bc9c113dbe2db444,
title = "Ballast vibrations and deformations due to different train loading scenarios studied using the discrete element method",
abstract = "This paper focuses on the effects of different dynamic train loading patterns on the vibration and permanent deformation accumulation trends of railroad ballast. As opposed to a continuous sinusoidalload pulse often applied in cyclic biaxial tests, the actual dynamic train loading may have loading patterns of varying pulse shapes with rest periods. A validated ballast model, based on the Discrete Element Method and imaging based aggregate size/shape characterization, was used to simulate both continuous sinusoidal and moving wheel loading patterns of different train loading speeds or frequencies with and without rest periods between loadpulses. The continuous sinusoidal loading resulted in larger ballast layer settlements in DEM simulations when compared to a more realistic moving wheel dynamic loading pattern that considered rest periods.",
author = "Yu Qian and Erol Tutumluer and Hai Huang",
year = "2011",
language = "English (US)",
series = "Advances in Environmental Vibration - Proceedings of the 5th International Symposium on Environmental Vibration, ISEV 2011",
publisher = "Science Press",
pages = "613--619",
editor = "Hirokazu Takemiya and {De Roeck}, G. and Wanming Zhai and E. Tutumluer",
booktitle = "Advances in Environmental Vibration - Proceedings of the 5th International Symposium on Environmental Vibration, ISEV 2011",
address = "China",
note = "5th International Symposium on Environmental Vibration, ISEV 2011 ; Conference date: 20-10-2011 Through 22-10-2011",
}