Fatigue in Railway Infrastructure

Fatigue is a major issue affecting safety and quality of service in the railway industry. This book reviews key aspects of this important subject.

Fatigue in Railway Infrastructure

Fatigue is a major issue affecting safety and quality of service in the railway industry. This book reviews key aspects of this important subject. It begins by providing an overview of the subject, discussing fatigue at the wheel-rail interface and in other aspects of infrastructure. It then considers fatigue in railway and tramway track, looking at causes of potential failure in such areas as rails and fixings as well as sleepers. It also reviews failure points in structures such as embankments and cuttings. The book analyses fatigue in railway bridges, looking in particular at masonry arch bridges as well as metal and concrete bridges. Two final chapters review safety and reliability issues affecting escalators and lifts. Fatigue in railway infrastructure is a helpful reference for those in the railway industry responsible for infrastructure maintenance as well as those researching this important subject. Provides a concise review of fatigue in the railway infrastructure Examines the causes of potential failure in rails, fixings and sleepers Analyses fatigue in railway bridges including masonry arch, metal and concrete structures

People and Rail Systems

Fatigue. Management. on. the. Operational. Railway: Developing. a. Strategic.
Approach. Fiona Kenvyn Introduction The ... As owner of the rail infrastructure
across England, Scotland and Wales, Network Rail is challenged with not only ...

People and Rail Systems

Following on from 2005's Rail Human Factors: Supporting the Integrated Railway, this book brings together an even broader range of academics and practitioners from around the world to share their expertise and experience on rail human factors. The content is both comprehensive and cutting-edge, featuring more than 55 chapters addressing the following topics: ¢ Passengers and public ¢ Driver performance and workload ¢ Driving and cognition ¢ Train cab and interfaces: simulation and design ¢ Routes, signage, signals and drivability ¢ Signalling and control of the railway ¢ Planning for the railway ¢ Engineering work and maintenance ¢ Level crossings ¢ Accidents and safety ¢ Human error and human reliability ¢ SPADs: signals passed at danger ¢ Human factors integration and standards ¢ Impairments to performance ¢ Staff competencies and training. People and Rail Systems: Human Factors at the Heart of the Railway will be invaluable for all those concerned with making railways safer, more reliable, of higher quality and more efficient. It will be essential reading for policy-makers, researchers and industry around the world.

Rail Crack Monitoring Using Acoustic Emission Technique

Detection of the onset of fatigue crack growth in rail steels using acoustic
emission. Engineering Fracture ... Railway infrastructure damage detection using
wavelet transformed acceleration response of traversing vehicle. Structural
Control and ...

Rail Crack Monitoring Using Acoustic Emission Technique

This thesis provides an innovative strategy for rail crack monitoring using the acoustic emission (AE) technique. The field study presented is a significant improvement on laboratory studies in the literature in terms of complex rail profile and crack conditions as well as high operational noise. AE waves induced by crack propagation, crack closure, wheel-rail impact and operational noise were obtained through a series of laboratory and field tests, and analyzed by wavelet transform (WT) and synchrosqueezed wavelet transform (SWT). A wavelet power-based index and the enhanced SWT scalogram were sequentially proposed to classify AE waves induced by different mechanisms according to their energy distributions in the time–frequency domain. A novel crack sizing method taking advantage of crack closure-induced AE waves was developed based on fatigue tests in the laboratory. The propagation characteristics of AE waves in the rail were investigated, and Tsallis synchrosqueezed wavelet entropy (TSWE) with time was finally brought forward to detect and locate rail cracks in the field. The proposed strategy for detection, location and sizing of rail cracks helps to ensure the safe and smooth operation of the railway system. This thesis is of interest to graduate students, researchers and practitioners in the area of structural health monitoring.

Quantitative Monitoring of Brittle Fatigue Crack Growth in Railway Steel Using Acoustic Emission

Rail infrastructure managers employ a variety of techniques and equipment to inspect rails. Still tens of rail failures are detected every year on all major rail networks.

Quantitative Monitoring of Brittle Fatigue Crack Growth in Railway Steel Using Acoustic Emission

Structural degradation of rails will unavoidably take place with time due to cyclic bending stresses, rolling contact fatigue, impact and environmental degradation. Rail infrastructure managers employ a variety of techniques and equipment to inspect rails. Still tens of rail failures are detected every year on all major rail networks. Inspection of the rail network is normally carried out at night time, when normal traffic has ceased. As the implementation of the 24-h railway moves forward to address the increasing demand for rail transport, conventional inspection processes will become more difficult to implement. Therefore, there is an obvious need to gradually replace outdated inspection methodologies with more efficient remote condition monitoring technology. The remote condition monitoring techniques employed should be able to detect and evaluate defects without causing any reduction in the optimum rail infrastructure availability. Acoustic emission is a passive remote condition monitoring technique which can be employed for the quantitative evaluation of the structural integrity of rails. Acoustic emission sensors can be easily installed on rails in order to monitor the structural degradation rate in real time. Therefore, apart from detecting defects, acoustic emission can be realistically applied to quantify damage. In this study, the authors investigated the performance of acoustic emission in detecting and quantifying damage in rail steel samples subjected to cyclic fatigue loads during experiments carried out under laboratory conditions. Herewith, the key results obtained are presented together with a detailed discussion of the approach employed in filtering noise sources during data acquisition and subsequent signal processing.

Atti del Workshop IGF Rolling contact fatigue applications and developments

... OF RCF ON RAILWAY WHEELS When a train runs on rails, complex
phenomena of plastic deformation, contact fatigue ... strong consequences on
train suspension, on the boogie's bearings and on railways infrastructure (rail
and sleepers).

Atti del Workshop IGF   Rolling contact fatigue  applications and developments


Wheel Rail Interface Handbook

This comprehensive volume will enable practising railway engineers, in whatever discipline of railway engineering – infrastructure, vehicle design and safety, and so on – to enhance their understanding of wheel/rail issues, which have a ...

Wheel Rail Interface Handbook

Many of the engineering problems of particular importance to railways arise at interfaces and the safety-critical role of the wheel/rail interface is widely acknowledged. Better understanding of wheel/rail interfaces is therefore critical to improving the capacity, reliability and safety of the railway system. Wheel-rail interface handbook is a one-stop reference for railway engineering practitioners and academic researchers. Part one provides the fundamentals of contact mechanics, wear, fatigue and lubrication as well as state-of-the-art research and emerging technologies related to the wheel/rail interface and its management. Part two offers an overview of industrial practice from several different regions of the world, thereby providing an invaluable international perspective with practitioners’ experience of managing the wheel/rail interface in a variety of environments and circumstances. This comprehensive volume will enable practising railway engineers, in whatever discipline of railway engineering – infrastructure, vehicle design and safety, and so on – to enhance their understanding of wheel/rail issues, which have a major influence on the running of a reliable, efficient and safe railway. One-stop reference on the important topic of wheel rail-interfaces Presents the fundamentals of contact mechanics, wear, fatigue and lubrication Examines state-of-the-art research and emerging technologies related to wheel-rail interface and its management

Advances in Fracture and Damage Mechanics X

Fatigue failures of rails often occur at the rail foot, since the geometry of this zone
gives rise to stress concentrations under ... Despite efforts by infrastructure
managers to ensure that the integrity of rail track is preserved through up to date
 ...

Advances in Fracture and Damage Mechanics X

Volume is indexed by Thomson Reuters CPCI-S (WoS). This collection of peer-reviewed papers covers a wide range of topics: Fracture Mechanics, Failure analysis, corrosion, Creep, Non-linear problems, Dynamic Fracture, Residual Stress, Environmental effects, Crack Propagation, Repair Techniques, Composites, Ceramics, Polymers, Metallic and concrete materials, Probabilistic Aspects, Risk Analysis, Damage Tolerance, Fracture Control, Computer Modelling Methods (Finite Elements, Boundary Elements and Meshless), Microstructural and Multiscale Aspects. The work thus offers a timely survey of these subjects.

The Structural Engineer

structural fatigue group has developed in - house programmes for accounting for
shakedown and ratchetting failure of ... has expertise in structural masonry ,
nonlinear analysis of concrete structures , structural fatigue and rail infrastructure
 ...

The Structural Engineer


Fatigue in the Rail Industry

... Representatives Committee on Transportation and Infrastructure
Subcommittee on Railroads, Pipelines and Hazardous Materials Fatigue in the
Rail Industry February 13, 2007 Good afternoon Chairwoman Brown, Ranking
Member Shuster ...

Fatigue in the Rail Industry


Transportation Research Record

Fatigue Testing of Double - Angle Connections of Steel Railroad Bridges WALED
ABOUELMAATY , EMMANUEL ... top one - third of the angle depth : Railroad
bridges are one of the most important links of the nation ' s aging infrastructure ...

Transportation Research Record


Engineering Geology for Society and Territory Volume 6

Infrastructure. in. Railway. Tunnels. Under. Fatigue. Load. L.C.. Huang. and. G. Li.
Abstract The concrete foundation in railway tunnel settles gradually following
long-term exposure to repeated loads by trains on the track. We established two ...

Engineering Geology for Society and Territory   Volume 6

This book is one out of 8 IAEG XII Congress volumes, and deals with the theme of applied geology, which is a critical theme for the global economy. In the international, multidisciplinary approach to major engineering projects (either to macro- or mega-scale), the application of geological investigation techniques is fundamental for properly selecting the location sites, planning the construction and maintaining the infrastructures. The contributions in this book include not only engineering constructions but also case studies related to large projects on geo-resources exploration and extraction (minerals, petroleum and groundwater), energy production (hydropower, geothermal, nuclear and others), transportation (railway and highway) and waste disposal as well as the environmental management of these and other activities. The Engineering Geology for Society and Territory volumes of the IAEG XII Congress held in Torino from September 15-19, 2014, analyze the dynamic role of engineering geology in our changing world and build on the four main themes of the congress: Environment, processes, issues, and approaches. The congress topics and subject areas of the 8 IAEG XII Congress volumes are: 1. Climate Change and Engineering Geology 2. Landslide Processes 3. River Basins, Reservoir Sedimentation and Water Resources 4. Marine and Coastal Processes 5. Urban Geology, Sustainable Planning and Landscape Exploitation 6. Applied Geology for Major Engineering Projects 7. Education, Professional Ethics and Public Recognition of Engineering Geology 8. Preservation of Cultural Heritage.

The Railway Track and Its Long Term Behaviour

A Handbook for a Railway Track of High Quality Konstantinos Tzanakakis. Fig.
Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. ... infrastructure .................................... .. 115
Degradation processes of railways infrastructure with a load-dependent wearing .

The Railway Track and Its Long Term Behaviour

A proper quality of a track and other infrastructure objects represents a basic requirement for train safety and punctuality. Most of the physical systems and their components deteriorate over time. This affects performance and may lead to failures. Albert Einstein said, “You have to learn the rules of the game. And then you have to play better than anyone else.” Only if we understand how the whole system works, taking into account its imperfections and how they influence its quality and performance will we be able to learn the rules of the game and “play better.” The book provides the readers with the necessary functional knowledge of track behaviour and comprehensively covers the function of the various track components, their interaction as elements of the track system, as well as the interaction of the track with railway vehicles. By presenting important tools for a deep understanding of track-behaviour this book aims to be a reference guide for infrastructure managers and to help them to find ways improving track quality for optimum long-term behaviour.

Rail International

international rail supply and operating busi - nesses collaborate and vigorously
pursue a strategy that will reduce the rolling contact fatigue problem to an
insignificant level ; it is likely that a major step in rail / wheel technol - ogy will be
required to achieve this . ... ΑΙ High - speed line maintenance in Raymond
Demaret Infrastructure Maintenance JUNE 2002 SEMETERNATIONAL p19 |
INFRASTRUCTURE.

Rail International


Design of Modern Steel Railway Bridges

These bridges are critical components of the railroad infrastructure and, therefore
, essential elements of an effective and ... fatigue life cycle analysis),
maintenance (repair and retrofitting), and rehabilitation (strengthening) of existing
railway ...

Design of Modern Steel Railway Bridges

Perhaps the first book on this topic in more than 50 years, Design of Modern Steel Railway Bridges focuses not only on new steel superstructures but also outlines principles and methods that are useful for the maintenance and rehabilitation of existing steel railway bridges. It complements the recommended practices of the American Railway Engineering and Maintenance-of-way Association (AREMA), in particular Chapter 15-Steel Structures in AREMA’s Manual for Railway Engineering (MRE). The book has been carefully designed to remain valid through many editions of the MRE. After covering the basics, the author examines the methods for analysis and design of modern steel railway bridges. He details the history of steel railway bridges in the development of transportation systems, discusses modern materials, and presents an extensive treatment of railway bridge loads and moving load analysis. He then outlines the design of steel structural members and connections in accordance with AREMA recommended practice, demonstrating the concepts with worked examples. Topics include: A history of iron and steel railway bridges Engineering properties of structural steel typically used in modern steel railway bridge design and fabrication Planning and preliminary design Loads and forces on railway superstructures Criteria for the maximum effects from moving loads and their use in developing design live loads Design of axial and flexural members Combinations of forces on steel railway superstructures Copiously illustrated with more than 300 figures and charts, the book presents a clear picture of the importance of railway bridges in the national transportation system. A practical reference and learning tool, it provides a fundamental understanding of AREMA recommended practice that enables more effective design.

Structural Health Monitoring of Civil Infrastructure Systems

BS 5400 : Part 10 * Fatigue damage evaluation method • Fatigue damage
loading * Fatigue damage criteria Highway - trailwayinduced accumulated
fatigue damage Data conversion engine • Conversion of measured highway /
railway traffic ...

Structural Health Monitoring of Civil Infrastructure Systems

Structural health monitoring is an extremely important methodology in evaluating the 'health' of a structure by assessing the level of deterioration and remaining service life of civil infrastructure systems. This book reviews key developments in research, technologies and applications in this area of civil engineering. It discusses ways of obtaining and analysing data, sensor technologies and methods of sensing changes in structural performance characteristics. It also discusses data transmission and the application of both individual technologies and entire systems to bridges and buildings. With its distinguished editors and international team of contributors, Structural health monitoring of civil infrastructure systems is a valuable reference for students in civil and structural engineering programs as well as those studying sensors, data analysis and transmission at universities. It will also be an important source for practicing civil engineers and designers, engineers and researchers developing sensors, network systems and methods of data transmission and analysis, policy makers, inspectors and those responsible for the safety and service life of civil infrastructure. Reviews key developments in research, technologies and applications Discusses systems used to obtain and analyse data and sensor technologies Assesses methods of sensing changes in structural performance

Handbook of Lubrication and Tribology

Contact Position • Friction and Creep • Contact Stress • Wheel and Rail Profiles
22.3 WheelandRailMaterials. ... Wear and Plastic Deformation • Wear Transitions
• Wear Mapping • Rolling Contact Fatigue • Interaction of Wear and Fatigue
Modeling Damage Mechanisms 22.5 FrictionModification. ... Effective
management of the wheel/rail contact is an important aspect of rail infrastructure
operations.

Handbook of Lubrication and Tribology

When it was first published some two decades ago, the original Handbook of Lubrication and Tribology stood on technology's cutting-edge as the first comprehensive reference to assist the emerging science of tribology lubrication. Later, followed by Volume II, Theory and Design and Volume III, Monitoring, Materials, Synthetic Lubricants, and Ap

International Railway Journal

Katrina Hits US Railways NY WAXIASEZATURE RAWAVAA IS EMD Signs
300Locomotive Deal With China LECTRO - Motive Diesel , L ... the owner caused
by rolling contact fatigue of “ gross negligence manslaughIV of Britain ' s railway
infra ( gauge corner cracking ) . ... Britain ' s rail infrastructure saw Beatty he
addressed the families sociated with a fatal derailment extensive speed
restrictions , to of ...

International Railway Journal


The Signalman s Journal

Congress To Tackle Rail Worker Fatigue FRA proposal would replace Hours of
Service Act with scientific - based regulations he Rail Subcommittee of the House
Transportation and Infrastructure Committee conducted a hearing on February ...

The Signalman s Journal


Maintenance and Safety of Aging Infrastructure

Fatigue. Life. of. Bridges. Beyond. 100Years. by. using. Monitored. Data. Eugen.
Brühwiler. Civil Engineering Institute, Swiss ... The approach is illustrated by
means of application cases in Switzerland related to a riveted railway bridge of
high ...

Maintenance and Safety of Aging Infrastructure

This book presents the latest research findings in the field of maintenance and safety of aging infrastructure. The invited contributions provide an overview of the use of advanced computational and/or experimental techniques in damage and vulnerability assessment as well as maintenance and retrofitting of aging structures and infrastructures such