Описание: This title provides a comprehensive overview of elastoplasticity relating to soil and rocks. Following a general outline of the models of behavior and their internal structure, each chapter develops a different area of this subject relating to the author`s particular expertise.
Описание: This book brings together a total of 48 contributions (including 5 keynote papers) which were presented at the 2nd International Workshop on the Application of X-ray CT for Geomaterials (GeoX 2006) held in Aussois, France, on 4-7 October, 2006. The contributions cover a wide range of topics, from fundamental characterization of material behavior to applications in geotechnical and geoenvironmental engineering. Recent advances of X-ray technology, hardware and software are also discussed. As such, this will be valuable reading for anyone interested in the application of X-ray CT to geomaterials from both fundamental and applied perspectives.
Автор: Otani Название: Xray CT for Geomaterials ISBN: 9058096661 ISBN-13(EAN): 9789058096661 Издательство: Taylor&Francis Рейтинг: Цена: 36300 р. Наличие на складе: Невозможна поставка.
Описание: Long-used as a tool for noninvasive medical diagnostics, X-ray computed tomography has attracted greater interest among engineers recently as a method of non-destructive evaluation of geomaterials. Covering advances in tomographic technology (hardware and software), recent applications, current rese
Описание: A selection of thirty-nine papers presented at the third FLAC Symposium. Topics covered include constitutive models, slope stability, underground cavity design, mining applications, soil structure interaction, dynamic analysis and thermal analyses.
Preface; Introduction; Instability and bifurcation for inelastic geomaterials, by R. Chambon; Part 1 Micromechanical origins and multiscale analysis of instabilities in geomaterials; Deciphering D'Alemberts dream: new tools for uncovering rules for self-organized pattern formation in geomaterials, by A. Tordesillas and D. M. Walker; Microscopic origins of shear strength in packings composed of elongated particles, by E. Azйma, F. Radjai; Multi-Scale Analysis of Instability in Sand, by C. S. Chang, Z.-Y. Yin and P-Y. Hicher; Observation of Microstructural Changes and Strain Localization of Unsaturated Sands Using Microfocus X-ray CT, by Y. Higo, F. Oka, S. Kimoto, T. Sanagawa and Y. Matsuhima; Signature of Anisotropy in Liquefiable Sand under Undrained Shear, by J. Zhao & N. Guo; Friction and localization associated with non- spherical particles, by A.V. Dyskin and E. Pasternak; Length scales for nonaffine deformation in localized, granular shear, by A. L. Rechenmacher, Sara Abedi;Discovering community structures and dynamical networks from grain-scale kinematics of shear bands in sand, by A. Tordesillas, D. M. Walker, A. Rechenmacher and S. Abedi; Slip and dislocation in crystalline solids as precursors to localized deformation, by R. I. Borja, H. Rahmani, F. Liu; Part 2 Geo-environmental applications; A Chemo-Thermo-Mechanically Coupled Behavior during Gas Hydrate Dissociation and its Numerical Analysis, by S. Kimoto, F. Oka, Y. Miki, T. Fukuda and H. Iwai; Stability of nail reinforced boreholes, by E. Papamichos; Stability analysis of creeping faults: the role of chemical decomposition of minerals, by J. Sulem, N. Brantut; Onset of immersed granular avalanches by DEM-LBM approach, by J.-Y. Delenne, M. Mansouri, F. Radjai, M. S. El Youssoufi, A. Seridi; Multi-scale periodic homogenization of ionic transfer in cementitious materials, by K. Bourbatache, O. Millet, A. Aпt-Mokhtar; Chimney of fluidization and "sandboil" in a granular soil, by P. Philippe and M. Badiane; Experimental study of contact erosion at a granular interface, by R. Beguinabc, P. Philippe and Y-H. Faure; Numerical modeling of hydrofracturing using the damage theory, by A. Guest and A. Settari; Polydisperse segregation down inclines: towards degradation models of granular avalanches, by B. Marks, I. Einav and P. Rognon; Numerical Modelling of Interaction between Snow Avalanche and Protective Structures, by M. Wawra, Y. Wang, W. Wu; Crack propagations on the rock face at Glacier Point of the Yosemite National Park after the 1999 rockfall, by K.T. Chau and P. Lin; Soil - Machine Interaction: Simulation and Testing, by M. Alsaleh; Part 3 Numerical modeling of failure and localized deformation in geomaterials; Multiscale Semi-Lagrangian Reproducing Kernel Particle Method for Modeling Damage Evolution in Geomaterials, by J. S. Chen, P. C. Guan, S. W. Chi, X. Ren, M. J. Roth, T. R. Slawson, M. Alsaleh; Tunnel excavation modeling with micromechanical approaches, by S. Levasseur, F. Collin, R. Charlier, D. Kondo; Coupling discrete elements and micropolar continuum through an overlapping region in one dimension, by Richard A. Regueiro and Beichuan Yan; On the numerical implementation of a multi-mechanism cyclic plasticity model associated to a dilation second gradient model aiming strain localization mitigation, by A. Foucault, F. Voldoire and A. Modaressi; 2 D and 3 D modelling of geomaterials using a second gradient dilation model, by R. Fernandes, B. Ducoin and R. Chambon; Local second gradient models for thermo-hydro-mechanical coupling in rock like materials, by Y. Sieffert, F. Marinelli, R. Chambon; Two scale model (fem-dem) for granular media, by M. Nitka, G. Combe, C. Dascalu and J. Desrues; Finite element modelling of material instability via an enriched elastoplastic model, by R. Wan and M. Pinheiro; Comprehensive DEM study of the effects of rolling resistance on strain localization in granular materials, by M. Gutierrez and M. Abdalsala
Описание: Discusses a broad range of issues related to the use of computed tomography in geomaterials and geomechanics. Contributions cover a wide range of topics Covers image-based computational modeling and software and visualization tools. .
Описание: A discussion of developments in the measurement and interpretation of advanced laboratory stress-strain testing of geomaterials. It includes a collection of case studies which apply the test results and is based on the activities of the technical committee No 29 of the ISSMGE.
Описание: This book presents contributions to the 9th International Workshop on Bifurcation and Degradation in Geomaterials held in Porquerolles, France, May 23-26, 2011. This series of conferences, started in the early 1980s, is dedicated to the research on degradation and instability phenomena in geomaterials.The volume gathers a series of manuscripts by brilliant international scholars reflecting recent trends in theoretical and experimental research in geomechanics. It incorporates contributions on topics like instability analysis, localized and diffuse failure description, multi-scale modeling and applications to geo-environmental issues.This book will be valuable for anyone interested in the research on degradation and instabilities in geomechanics and geotechnical engineering, appealing to graduate students, researchers and engineers alike.
Описание: Geomaterials exhibit complex but rich mechanical behaviour with a variety of failure modes ranging from diffuse to localized deformation depending on stress, density, microstructure, and loading conditions. These failure modes are a result of an instability of material and/or geometric nature that can be studied within the framework of bifurcation theory. Degradation is another related phenomenon arising from cyclic loading, ageing, weathering, chemical attack, and capillary effects, among others. The methodology of analyzing the various types of instabilities is crucial in the adequate modelling and safe design of numerous problems in geomechanics.The present volume contains a sampling of enlarged versions of papers presented at the International Workshop on Bifurcation and Degradations in Geomaterials (IWBDG 2008) held in Lake Louise, Alberta, Canada, May 28-31, 2008. These papers capture the state-of-the-art in the specialized field of geomechanics and contemporary approaches to solving the central issue of failure. Some engineering applications are presented in the areas of energy resource extraction and soil-machine interaction.
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