@article{MAKHILLJEAS201611313578,
    title = {Finite Element Dynamic Analysis of a High-Speed Train on Ballasted Track},
    journal = {Journal of Engineering and Applied Sciences},
    volume = {11},
    number = {3},
    pages = {303-310},
    year = {2016},
    issn = {1816-949x},
    doi = {jeasci.2016.303.310},
    url = {https://makhillpublications.co/view-article.php?issn=1816-949x&doi=jeasci.2016.303.310},
    author = {Melaku and},
    keywords = {Dynamic analysis,ballasted railway,high-speed train,finite element,track},
    abstract = {The impact of dynamic loading on ballasted railway track has become an important issue due to increased demand for high-speed freight and public transport and because it leads to progressive deterioration and settlement of railway. In this study, the LS-DYNA computer code is used to conduct finite element calculations for the dynamic analysis of a high-speed train running on ballasted railway track. The rails are modelled as beams of a plastic kinematic material and the ballast and sub-ballast structure are modelled using rectangular prisms of an elastic material. The elastic beams representing the sleepers are placed 0.6 m apart.The load of a high-speed train is applied using a simplified finite element model. The commands RAIL_TRACK and RAIL_TRAIN LS_DYNA are applied to simulate the train’s interaction with the track. The CONTACT_SINGEL_SURFACE and CONTACT_SURAFCE_SURFCE commands which have not been applied in previous research are used to model the contact between connected parts. The results indicate that the LS-DYNA program can be used to model a high-speed train running on ballasted railway track and to calculate stress-strain, deformation and contact forces as well as sliding energy which are crucial for in railway track maintenance and in designing new ballasted railway track.}
    }