Stresses And Deformations In Railway Track
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Stresses And Deformations In Railway Track
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Author : Gerald Patrick Raymond
language : en
Publisher: Kingston, Ont. : Canadian Institute of Guided Ground Transport, Queen's University
Release Date : 1977
Stresses And Deformations In Railway Track written by Gerald Patrick Raymond and has been published by Kingston, Ont. : Canadian Institute of Guided Ground Transport, Queen's University this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Ballast (Railroads) categories.
Stresses And Deformations In Railway Track
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Author : Gerald Patrick Raymond
language : en
Publisher: Kingston, Ont. : Canadian Institute of Guided Ground Transport, Queen's University
Release Date : 1977
Stresses And Deformations In Railway Track written by Gerald Patrick Raymond and has been published by Kingston, Ont. : Canadian Institute of Guided Ground Transport, Queen's University this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Ballast (Railroads) categories.
Stresses And Deformations In Railway Track Report Of Ciggt Project
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Author :
language : en
Publisher:
Release Date : 1976
Stresses And Deformations In Railway Track Report Of Ciggt Project written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Ballast (Railroads) categories.
Mechanics Of Ballasted Rail Tracks
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Author : Buddhima Indraratna
language : en
Publisher: CRC Press
Release Date : 2005-08-11
Mechanics Of Ballasted Rail Tracks written by Buddhima Indraratna and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-08-11 with Technology & Engineering categories.
In this book, the authors discuss testing of ballast, including the strength, deformation and degradation aspects of fresh and recycled ballast under monotonic and cyclic loading. The effectiveness of geosynthetics in stabilising recycled ballast has also been examined. A new stress-strain constitutive model for ballast incorporating particle breakage is presented. Finally, a new range of particle gradations, balancing the strength and permeability requirements, has been proposed for future rail tracks. This book is intended as a reference text for final year civil engineering students and postgraduates, and for practicing railway engineers with the task of modernizing existing designs.
Advanced Rail Geotechnology Ballasted Track
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Author : Buddhima Indraratna
language : en
Publisher: CRC Press
Release Date : 2023-08-14
Advanced Rail Geotechnology Ballasted Track written by Buddhima Indraratna and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-08-14 with Science categories.
Ballast plays a vital role in transmitting and distributing the train wheel loads to the underlying track substructure. The load-bearing capacity, safe train speed, and the levels of noise and vibration, as well as passenger comfort depend on the behaviour of ballast through particle interlocking and the corresponding deformation of this granular assembly. Attrition and breakage of ballast occur progressively under heavy and continual cyclic loading, causing track deterioration and rail misalignment affecting safety, while exacerbating the intensity of track maintenance. In the absence of realistic computational models, the track substructure is traditionally designed using mostly empirical approaches. In this book, the authors present the detailed information on the strength, deformation, and degradation aspects of fresh and recycled ballast under monotonic, cyclic, and impact loading using innovative geotechnical testing devices. A constitutive model for ballast incorporating particle breakage is presented representing a more realistic stress–strain response. The mathematical formulations and numerical models are validated using controlled experimental simulations and fully instrumented field trials. Revised ballast gradation is described to provide greater track resiliency and extended longevity. The book also provides a detailed description of geosynthetics for substructure improvement considering track deterioration caused by particle degradation, fouling, and impeded drainage. New to this second edition are extensive discussions on subgrade soil stabilisation, causes and mechanisms of soil fluidisation (mud pumping) under cyclic loading, and preventive and remedial measures to alleviate undue instability of ballast tracks. This book should prove most beneficial for final-year civil engineering students and for postgraduate teaching and learning. It is an ideal supplement for practising railway engineers and researchers engaged in the challenging tasks of future track design for heavier and faster trains.
Residual Stress In Rails
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Author : O. Orringer
language : en
Publisher: Springer
Release Date : 2017-08-16
Residual Stress In Rails written by O. Orringer and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-16 with Science categories.
Rail integrity is a current application of engineering fracture mechanics at a practical level. Although railroad rails have been manufactured and used for more than a century, it is only in the last ten years that the effects of their crack propagation and fracture characteristics have been considered from a rational viewpoint. The J,Jractical objectives are to develop damage tolerance ~delines for rail inspection and to improve the fracture resistance of new rail productiOn. Rail fatigue crack propagation rates and fracture resistance are strongly influenced by residual stresses, which are introduced into the rail both during proouction and in service. Therefore, the rail residual stress field must be well understood before fracture mechanics can be usefully applied to the subject of rail integrity. The three-dintensional character of rail and its stress fields make it essential to apply both experimental and analytical methods in order to twderstand the effects of pro duction and service variables on residual stress and the effects of the stress on fatigue crack propagation and fracture. This volume brings to~ether field observations and experimental stress analysis of railroad rails in the Umted States and Europe. The ongoing search for an efficient and accurate technique is emphasized. A companion volume brings together several analytical investigations, based on advanced compu tational mechanics methods, for correlation of the experimental data as well as eval uation of the effects of residual stress on rail integrity.
Rail Quality And Maintenance For Modern Railway Operation
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Author : J.J. Kalker
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-18
Rail Quality And Maintenance For Modern Railway Operation written by J.J. Kalker and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-18 with Technology & Engineering categories.
In April 1990 a conference was held at the Cracow Institute of Technology, Cracow, Poland. The title of that conference was "Residual Stresses in Rails - Effects on Rail Integrity and Railroad Economics" and its themes were the measurement and prediction of residual stresses in rails, but, as the sub-title suggests, the intention was also to provide a link between research and its application to the practical railway world. At the Cracow conference there were 40 participants with 5 railways and 5 rail makers being represented and 25 papers were given. The Cracow conference was a success, and by March 1991 its off-spring, "The International Conference on Rail Quality and Maintenance for Modern Railway Operations", was conceived and birth was ultimately given in June 1992 at the Technical University, Delft. It turned out to be some baby, with 112 delegates from 24 countries taking part! As with its predecessor, the conference was to provide a forum for the exchange of ideas between research investigators, rail makers and railway engineers. A cursory examination of the list of participants suggests that about 57% were from the railway industry, 34% from universities and other research institutions and 9% from the steel industry. Bearing in mind that some of the railway industry participants were from their respective research and development organisations the balance of interests was about right.
Deformations Of Railroad Tracks And The Means For Remedying Them
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Author : G. Cuénot
language : en
Publisher:
Release Date : 1907
Deformations Of Railroad Tracks And The Means For Remedying Them written by G. Cuénot and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1907 with Railroad tracks categories.
Analysis Of Stresses In Railway Track
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Author : Ta-chung Liu
language : en
Publisher:
Release Date : 1937
Analysis Of Stresses In Railway Track written by Ta-chung Liu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1937 with Railroad tracks categories.
Mechanics And Fatigue In Wheel Rail Contact
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Author : S.L. Grassie
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Mechanics And Fatigue In Wheel Rail Contact written by S.L. Grassie and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
These proceedings demonstrate the increasing interest and importance of contact mechanics and wear to the railway industry. The 27 contributions succeed in sustaining a balance between mechanics and metallurgy, theory and practice, and will be of considerable interest to those engaged in research, as well as practising engineers.