Security and Reliability of Damaged Structures and Defective Materials
Guy Pluvinage, Aleksandar Sedmak - Security and Reliability of Damaged Structures and Defective Materials
Publisher: Springer | 2009-08-01 | ISBN: 9048127912 | PDF | 438 pages | 53.75 MB
Structures that are essential for economy and security such as energy production, transportation and supply, water supply, buildings, are susceptible to failure, because of defects already present in the material, or created at fabrication, or appearing during service. Methods of assessment of the nocivity of these defects are needed, to predict the remaining service life and the eventual emergency of stopping service and repairing, if possible. To reach this objectives, this book presents the last methods derived from the classical linear, non-linear fracture mechanics concepts, including fatigue and notch fracture mechanics. Several examples of structures rehabilitations and repairing are given. This book gathers the presentation made during the Advanced Research Workshop held in Portoroz (Slovenia) in October 2008, under the auspices of NATO Science for Peace and Security Programme. It is edited by Professor Guy Pluvinage from the University Paul Verlaine - Metz (France) and Professor Aleksandar Sedmak from the University of Belgrade, Faculty of Mechanical Engineering. Both have a long and rich experience in analysis of theoretical and practical cases in safety and reliability of structures. Other contributors are all known as experts in the areas of fatigue, facture and reliability of structures.
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L.A. Galin’s book on contact problems is a remarkable work. Actually there are two books: the first, published in 1953 deals with contact problems in the classical theory of elasticity; this is the one that was translated into English in 1961. The second book, published in 1980, included the first, and then had new sections on contact problems for viscoelastic materials, and rough contact problems; this section has not previously been translated into English.
In this new translation, the original text and the mathematical analysis have been completely revised, new material has been added, and the material appearing in the 1980 Russian translation has been completely rewritten.
In addition there are three essays by students of Galin, bringing the analysis up to date.
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Spectral Finite Element Method: Wave Propagation, Diagnostics and Control in Anisotropic and Inhomogeneous Structures (Computational Fluid and Solid Mechanics)
By Srinivasan Gopalakrishnan, Debiprosad Roy Mahapatra, Abir Chakraborty
Book Description:
In recent times, the use of composites and functionally graded materials (FGMs) in structural applications has increased. FGMs allow the user to design materials for a specified functionality and therefore have numerous uses in structural engineering. However, the behaviour of these structures under high-impact loading is not well understood. Spectral Finite Element Method: Wave Propagation, Health Monitoring and Control in Composite and Functionally Graded Structures focuses on some of the wave propagation and transient dynamics problems with this complex media which had previously been thought unmanageable.
By using state-off-the-art computational power, the Spectral Finite Element Method (SFEM) can solve many practical engineering problems. This book is the first to apply SFEM to inhomogeneous and anisotropic structures in a unified and systematic manner. The authors discuss the different types of SFEM for regular and damaged 1-D and 2-D waveguides, various solution techniques, different methods of detecting the presence of damages and their locations, and different methods available to actively control the wave propagation responses. The theory is supported by tables, figures and graphs; all the numerical examples are so designed to bring out the essential wave behaviour in these complex structures. Some case studies based on real-world problems are also presented.
This book is intended for senior undergraduate students and graduate students studying wave propagation in structures, smart structures, spectral finite element method and structural health monitoring. Readers will gain a complete understanding of how to formulate a spectral finite element; learn about wave behaviour in inhomogeneous and anisotropic media; and, discover how to design some diagnostic tools for monitoring the health or integrity of a structure. This important contribution to the engineering mechanics research community will also be of value to researchers and practicing engineers in structural integrity.
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Product Description:
Due to the increase in computational power and new discoveries in propagation phenomena for linear and nonlinear waves, the area of computational wave propagation has become more significant in recent years. Exploring the latest developments in the field, Effective Computational Methods for Wave Propagation presents several modern, valuable computational methods used to describe wave propagation phenomena in selected areas of physics and technology.
Featuring contributions from internationally known experts, the book is divided into four parts. It begins with the simulation of nonlinear dispersive waves from nonlinear optics and the theory and numerical analysis of Boussinesq systems. The next section focuses on computational approaches, including a finite element method and parabolic equation techniques, for mathematical models of underwater sound propagation and scattering. The book then offers a comprehensive introduction to modern numerical methods for time-dependent elastic wave propagation. The final part supplies an overview of high-order, low diffusion numerical methods for complex, compressible flows of aerodynamics.
Concentrating on physics and technology, this volume provides the necessary computational methods to effectively tackle the sources of problems that involve some type of wave motion.
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Wave Propagation for Train-induced Vibrations: A Finite/Infinite Element Approach
By Y. B. Yang, H. H. Hung
* Publisher: World Scientific Publishing Company
* Number Of Pages: 492
* Publication Date: 2009-06-22
* ISBN-10 / ASIN: 9812835822
* ISBN-13 / EAN: 9789812835826
Product Description:
For buildings and factories located near railway or subway lines, the vibrations caused by the moving trains, especially at high speeds, may be annoying to the residents or detrimental to the high-precision production lines. However, there is a lack of simple and efficient tools for dealing with the kind of environmental vibrations, concerning simulation of the radiation of infinite boundaries; irregularities in soils, buildings and wave barriers; and dynamic properties of the moving vehicles. This book is intended to fill such a gap.
Compared with the boundary element method (BEM) for solving the half-space problems, the finite/infinite element method (FIEM) presented in this book has the following advantages:
* It requires less effort in formulation and computation.
* It can be directly incorporated in an existing FEM analysis program.
* It is capable of simulating the irregularities in buildings, soils and tunnels.
* It can be used to evaluate the efficiency of various wave barriers for vibration reduction.
The methodology presented in the book can be adopted to analyze the vibrations caused by road traffic as well.
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After the Earth Quakes: Elastic Rebound on an Urban Planet
By Susan Elizabeth Hough, Roger G. Bilham,
* Publisher: Oxford University Press, USA
* Number Of Pages: 336
* Publication Date: 2005-10-28
* Sales Rank: 743267
* ISBN / ASIN: 0195179137
* EAN: 9780195179132
* Binding: Hardcover
Book Description:
Earthquakes rank among the most terrifying natural disasters faced by mankind. Out of a clear blue sky-or worse, a jet black one-comes shaking strong enough to hurl furniture across the room, human bodies out of bed, and entire houses off of their foundations. When the dust settles, the immediate aftermath of an earthquake in an urbanized society can be profound. Phone and water supplies can be disrupted for days, fires erupt, and even a small number of overpass collapses can snarl traffic for months. However, when one examines the collective responses of developed societies to major earthquake disasters in recent historic times, a somewhat surprising theme emerges: not only determination, but resilience; not only resilience, but acceptance; not only acceptance, but astonishingly, humor. Elastic rebound is one of the most basic tenets of modern earthquake science, the term that scientists use to describe the build-up and release of energy along faults. It is also the best metaphor for societal responses to major earthquakes in recent historic times. After The Earth Quakes focuses on this theme, using a number of pivotal and intriguing historic earthquakes as illustration. The book concludes with a consideration of projected future losses on an increasingly urbanized planet, including the near-certainty that a future earthquake will someday claim over a million lives. This grim prediction impels us to take steps to mitigate earthquake risk, the innately human capacity for rebound notwithstanding.
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Avoiding Claims in Building Design: Risk Management in Practice
Avoiding Claims in Building Design: Risk Management in Practice
By Malcolm Taylor
Publisher: Wiley-Blackwell
Number Of Pages: 304
Publication Date: 2000-06-15
ISBN-10 / ASIN: 0632053267
ISBN-13 / EAN: 9780632053261
The chance of being claimed against is now a major risk factor for every building designer, engineer, quantity surveyor and project manager. Apart from the cases that go to court, many other claims are settled before they reach that stage. The cost of insurance to meet claims is now a substantial component of every practice’s overheads. Sensible risk management can identify the potential sources of claims, reduce their likelihood, warn of impending trouble and control how the claim is to be defended.
This book explains how to plan a risk management strategy and suggests techniques that can supplement the practice’s existing management procedures without imposing unnecessary bureaucracy. It attaches as much importance to the interaction of risk between members of the design team as to the risk profile of the practice itself.
The first part defines risk and its origins, discusses how risk can arise in the various professions and types of practice, and how it interacts between the professions, compares quality assurance with risk management, and advises on the relations between the practice, its insurers and its lawyers. It concludes with advice on how to create a risk strategy and system for the office.
The second part is devoted to techniques and covers: setting up the appointment; creation of the team; managing the project; the risks of CDM; the complications of procurement; and drafting, awarding and administering the building contract. Risk implications of the major contract forms are discussed in detail. It concludes with advice on the handling of claims.
The book contains references to a number of legal cases to illustrate the risks discussed. It is recommended reading not only for the individual professions (architect, engineer, QS, project manger), but for all of them collectively in understanding how the risk of one profession can become the risk of any of his fellow team members.
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Dynamic and Mobile GIS: Investigating Changes in Space and Time
Dynamic and Mobile GIS: Investigating Changes in Space and Time
CRC | November 10, 2006 | ISBN 0849390923 | PDF | 310 pages | 10.6MB
With the widespread use of PDAs, wireless internet, Internet-based GIS, and 3G and 4G telecommunications, the technology supporting mobile GIS is rapidly gaining popularity and effectiveness. Dynamic and Mobile GIS: Investigating Changes in Space and Time addresses Web GIS, mobile GIS, and the modeling, processing, and representation of dynamic events, as well as current demands to update GIS representations.
Providing a comprehensive overview of this emerging technology, this book highlights innovations, new ways of modeling both spatial objects and dynamic processes affecting them, and advances in visualization. Featuring contributions from established GIS workers, it begins with an introduction of extant technology and previews future developments. The book examines challenges to security and privacy and presents practical solutions to these problems while focusing on modeling approaches and exploring the need to display an appropriate level of information in a mobile environment. Concluding with a study of mobility, the book also contains practical examples of applications of mobile devices for disaster management and environmental monitoring.
Dynamic and Mobile GIS: Investigating Changes in Space and Time offers detailed cases of successful applications and identifies the current cutting-edge aspects of mobile and dynamic GIS. The book also looks to the future, investigating important research directions and potential challenges.
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