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.

Author: Mark Robinson

Publisher: Elsevier

ISBN: 9781845697020

Category: Technology & Engineering

Page: 128

View: 564

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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
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Rail Infrastructure Resilience

This chapter introduces the main duties of sleepers and railway sleeper design processes. The common damages of prestressed concrete sleepers: dynamic load, fatigue, rail seat abrasion, and time-dependent behavior are analyzed for ...

Author: Rui Calcada

Publisher: Woodhead Publishing

ISBN: 9780128210437

Category: Technology & Engineering

Page: 494

View: 548

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Economic growth, security and sustainability across Europe are at risk due to ageing railway infrastructure systems. At present, the majority of such systems are aging and some have even reached their initial design lives. These issues align with a major challenge in civil engineering: how to restore and improve urban infrastructure and built environments. Policy, environmental and physical barriers must be addressed and overcome. The complex and interconnected nature of the problem means that there is a need for academia, industry, communities and governments to work collaboratively. The challenges posed by extreme events from natural and man-made disasters are urgent. Rail Infrastructure Resilience: A Best-Practices Handbook presents developed improvement methods for rail infrastructure systems, toward resilience to extreme conditions. It shows how best to use new information in the engineering design, maintenance, construction and renewal of rail infrastructure resilience, through knowledge exchange and capability development. The book presents the outcome of a major European research project, known as the RISEN project. RISEN aimed to enhance knowledge creation and transfer using both international and intersectoral secondment mechanisms among European Advanced Rail Research Universities and SMEs, and Non-EU, leading rail universities, providing methodological approaches and practical tools for restoring and improving railway infrastructure systems for extreme events. Edited and written by members of this project, this book will be essential reading for researchers and practitioners hoping to find practical solutions to the challenges of rail infrastructure resilience. Offers a best-practices handbook for rail infrastructure resilience from the leaders in the field Paints a holistic picture of the rail transport system, showing that infrastructure maintenance intervention can be enhanced through advanced monitoring systems and resilience design Presents rail infrastructure resilience and advanced condition monitoring, allowing a better understanding of the critical maintenance, renewal and retrofit needs of railways Considers how academia, industry, communities and governments can work collaboratively in order to tackle aggregated problems in rail infrastructure resilience Presents the findings from the RISEN project, the leading European project on enhancing knowledge creation and transfer of expertise on rail infrastructure resilience
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Cumulative Damage of Welded Joints

The book concludes with the various fatigue issues present in barriers and ticket machines. It is a valuable resource for all concerned with the rail industry, academics and researchers of railway infrastructure systems.

Author: T R Gurney

Publisher: Woodhead Publishing

ISBN: 9781845691035

Category: Technology & Engineering

Page: 464

View: 760

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Fatigue is a mechanism of failure which involves the formation and growth of cracks under the action of repeated stresses. Ultimately, a crack may propagate to such an extent that total fracture of the member may occur. To avoid fatigue it is essential to design the structure with inherent fatigue strength. However, fatigue strength for variable amplitude loading is not a constant material property and any calculations are necessarily built on a number of assumptions. Cumulative damage of welded joints explores the wealth of research in this important field and its implications for the design and manufacture of welded components. After an Introduction, chapter two introduces the constant amplitude database, which contains results obtained in test conditions and which forms the basis of the basic S-N curves for various types of joint. Chapter three discusses the influence of residual stresses which can have a marked effect on fatigue behaviour. Chapter four explores variable amplitude loading and the problem of how information from laboratory tests, obtained under constant amplitude conditions, can be applied to the design of structures for service conditions. This problem is further investigated in the next chapter which is devoted to two and three level load testing. Chapters six, seven and eight look at the influence that the variety of variable loading spectra can have on fatigue strength, whether narrow or wide band loading or cycles of small stress range. Taking all of this knowledge, chapter nine discusses structure designs. Cumulative damage of welded joints is a comprehensive source of invaluable information for welding engineers, supervisors, inspection personnel and designers. It will also be of great interest for academics working in the fields of structural and mechanical engineering. Covers the wealth of research in the field of fatigue strength and its role in the design and manufacture of welded components Invaluable reference source for welding engineers, supervisors, inspection personnel and designers
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The Railway Track and Its Long Term Behaviour

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.

Author: Konstantinos Tzanakakis

Publisher: Springer Science & Business Media

ISBN: 9783642360510

Category: Technology & Engineering

Page: 414

View: 734

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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.
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People and Rail Systems

Fatigue. Management. on. the. Operational. Railway: Developing ... As owner of the rail infrastructure across England, Scotland and Wales, Network Rail is challenged with not only managing and maintaining the infrastructure itself, ...

Author: John R. Wilson

Publisher: CRC Press

ISBN: 9781351912280

Category: Technology & Engineering

Page: 632

View: 998

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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.
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Human Mental Workload Models and Applications

... that might occur in the railway infrastructure, was found to suffer from fatigue problems and the unpredictability of ... A large-scale survey among UK train staff covering all the job roles [5] indicated that issues of fatigue were ...

Author: Luca Longo

Publisher: Springer Nature

ISBN: 9783030623029

Category: Computers

Page: 251

View: 860

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This book constitutes the refereed proceedings of the 4th International Symposium on Human Mental Workload: Models and Applications, H-WORKLOAD 2020, held in Granda, Spain*, in December 2020. The volume presents one keynote paper as well as 13 revised full papers, which were carefully reviewed and selected from 22 submissions. The papers are organized in two topical sections on models and applications. *The conference was held virtually due to the COVID-19 pandemic.
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Ageing of Infrastructure

Fatigue is defined as a process of cycle-by-cycle accumulation of damage in a material undergoing fluctuating stresses and strains (e.g. railway infrastructure). Corrosion fatigue relates to the joint mechanical degradation of a metal ...

Author: Frank Collins

Publisher: CRC Press

ISBN: 9780429849534

Category: Technology & Engineering

Page: 142

View: 803

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The book addresses the problem of ageing infrastructure and how ageing can reduce the service life below expected levels. The rate of ageing is affected by the type of construction material, environmental exposure, function of the infrastructure, and loading: each of these factors is considered in the assessment of ageing. How do international design codes address ageing? Predictive models of ageing behaviour are available and the different types (empirical, deterministic, and probabilistic) are discussed in a whole-of-life context. Life cycle plans, initiated at the design stage, can ensure that the design life is met, while optimising the management of the asset: reducing life cycle costs and reducing the environmental footprint due to less maintenance/remediation interventions and fewer unplanned stoppages and delays. Health monitoring of infrastructure can be conducted via implanted probes (wired or wireless) or by non-destructive testing that can routinely measure the durability, loading, and exposure environments at key locations around the facility. Routine monitoring can trigger preventative maintenance that can extend the life of the infrastructure and minimise unplanned and reactive remediation, while also providing ongoing data that can be utilised towards more durable future construction. Future infrastructure will need to be safe and durable, financially and environmentally sustainable over the lifecycle, thereby raising socio-economic wellbeing. The book concludes by discussing the key impacting factors that will need to be addressed. The author brings a strong academic and industry background to present a resource for academics and practitioners wishing to address the ageing of built infrastructure.
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Bridge Safety Maintenance Management Life Cycle Resilience and Sustainability

By focusing on railway bridges, which are essential in railway infrastructure, reference is made to an existing case ... the Norwegian railway infrastructure owner conducted an investigation aimed at determining the remaining fatigue ...

Author: Joan Ramon Casas

Publisher: CRC Press

ISBN: 9781000798777

Category: Technology & Engineering

Page: 2646

View: 476

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Bridge Safety, Maintenance, Management, Life-Cycle, Resilience and Sustainability contains lectures and papers presented at the Eleventh International Conference on Bridge Maintenance, Safety and Management (IABMAS 2022, Barcelona, Spain, 11–15 July, 2022). This e-book contains the full papers of 322 contributions presented at IABMAS 2022, including the T.Y. Lin Lecture, 4 Keynote Lectures, and 317 technical papers from 36 countries all around the world. The contributions deal with the state-of-the-art as well as emerging concepts and innovative applications related to the main aspects of safety, maintenance, management, life-cycle, resilience, sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle, resilience, sustainability, standardization, analytical models, bridge management systems, service life prediction, structural health monitoring, non-destructive testing and field testing, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, needs of bridge owners, whole life costing and investment for the future, financial planning and application of information and computer technology, big data analysis and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on bridge safety, maintenance, management, life-cycle, resilience and sustainability of bridges for the purpose of enhancing the welfare of society. The volume serves as a valuable reference to all concerned with and/or involved in bridge structure and infrastructure systems, including students, researchers and practitioners from all areas of bridge engineering.
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Rail Crack Monitoring Using Acoustic Emission Technique

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

Author: Dan Li

Publisher: Springer

ISBN: 9789811083488

Category: Technology & Engineering

Page: 136

View: 227

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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.
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Wheel Rail Interface Handbook

A list of references is included in the final section for further reading on Dutch wheel–rail interface research. Key words: infrastructure management, rolling contact fatigue (Rcf), railway noise, squeal, wheel maintenance, ...

Author: R. Lewis

Publisher: Elsevier

ISBN: 9781845696788

Category: Technology & Engineering

Page: 856

View: 329

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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
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