Author: Publisher:
ISBN:
Category : Mechanics
Languages : en
Pages : 402
Book Description
Proceedings
Author: Proceedings of the ... U.S. National Congress of Applied Mechanics
Author: Applied Mechanics Reviews
Author: Dhaka Megacity
Author: Ashraf DewanPublisher: Springer Science & Business Media
ISBN: 9400767358
Category : Science
Languages : en
Pages : 423
Book Description
The book Dhaka Megacity: Geospatial Perspectives on Urbanisation, Environment and Health presents the use of geospatial techniques to address a number of environmental issues, including land use change, climatic variability, urban sprawl, population density modelling, flooding, environmental health, water quality, energy resources, urban growth modelling, infectious diseases and the quality of life. Although the work is focused on the Megacity of Dhaka in Bangladesh, the techniques and methods that are used to research these issues can be utilized in any other areas where rapid population growth coupled with unplanned urbanization is leading to environmental degradation. The book is useful for people working in the area of Geospatial Science, Urban Geography, Environmental Management and International Development. Since the chapters in the book cover a range of environmental issues, this book describes useful tools for assisting informed decision making, particularly in developing countries.
Granular Geomechanics
Author: Matthew R. KuhnPublisher: Elsevier
ISBN: 0081010834
Category : Technology & Engineering
Languages : en
Pages : 276
Book Description
Granular Geomechanics provides a comprehensive exploration of soils as granular materials and the manner in which a soil's engineering properties form grain-scale mechanics. The book focuses on granular composition and packing, grain interactions, discrete granular modeling and continuum constitutive modeling. - Provides a coherent presentation on granular geomechanics for engineers - Presents essential background information in each chapter, along with a list of works for further study - Uses tensor notation, also including a brief explanation of conventions and operations in the book's appendix
Advanced Rail Geotechnology – Ballasted Track
Author: Buddhima IndraratnaPublisher: CRC Press
ISBN: 1000925420
Category : Science
Languages : en
Pages : 579
Book Description
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.
Micromechanics and Nanoscale Effects
Author: Vasyl Michael HarikPublisher: Springer Science & Business Media
ISBN: 9400710135
Category : Technology & Engineering
Languages : en
Pages : 251
Book Description
This volume consists of the state-of-the-art reports on new developments in micromechanics and the modeling of nanoscale effects, and is a companion book to the recent Kluwer volume on nanomechanics and mul- scale modeling (it is entitled Trends in Nanoscale Mechanics). The two volumes grew out of a series of discussions held at NASA Langley Research Center (LaRC), lectures and other events shared by many researchers from the national research laboratories and academia. The key events include the 2001 Summer Series of Round-Table Discussions on Nanotechnology at ICASE Institute (NASA LaRC) organized by Drs. V. M. Harik and M. D. Salas and the 2002 NASA LaRC Workshop on Multi-scale Modeling. The goal of these interactions was to foster collaborations between academic researchers and the ICASE Institute (NASA LaRC), a universi- based institute, which has pioneered world-class computational, theoretical and experimental research in the disciplines that are important to NASA. Editors gratefully acknowledge help of Ms. E. Todd (ICASE, NASA LaRC), the ICASE Director M. D. Salas and all reviewers, in particular, Dr. B. Diskin (ICASE/NIA, NASA LaRC), Prof. R. Haftka (University of Florida), Dr. V. M. Harik (ICASE/Swales Aerospace, NASA LaRC), Prof.
Metal Fatigue
Author: Norman Edward FrostPublisher: Courier Corporation
ISBN: 9780486409276
Category : Technology & Engineering
Languages : en
Pages : 550
Book Description
Definitive, clearly written, and well-illustrated volume addresses all aspects of the subject, from the historical development of understanding metal fatigue to vital concepts of the cyclic stress that causes a crack to grow. Examines effect of stress concentrations on notches, theories of fatigue crack propagation, and many other topics. Seven appendixes describe laboratory fatigue testing, stress concentrations, material stress-strain relationships, and more. Invaluable text for students of engineering design and metallurgy.
Dynamic Stability of Columns under Nonconservative Forces
Author: Yoshihiko SugiyamaPublisher: Springer
ISBN: 3030005720
Category : Science
Languages : en
Pages : 236
Book Description
This book treats dynamic stability of structures under nonconservative forces. it is not a mathematics-based, but rather a dynamics-phenomena-oriented monograph, written with a full experimental background. Starting with fundamentals on stability of columns under nonconservative forces, it then deals with the divergence of Euler’s column under a dead (conservative) loading from a view point of dynamic stability. Three experiments with cantilevered columns under a rocket-based follower force are described to present the verifiability of nonconservative problems of structural stability. Dynamic stability of columns under pulsating forces is discussed through analog experiments, and by analytical and experimental procedures together with related theories. Throughout the volume the authors retain a good balance between theory and experiments on dynamic stability of columns under nonconservative loading, offering a new window to dynamic stability of structures, promoting student- and scientist-friendly experiments.
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