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Bifurcations, Instabilities and Degradations in Geomaterials
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340211415 Buchausg. u.d.T.: ‡Bifurcations, instabilities and degradations in geomaterials
ISBN
978-3-642-18283-9
Name
Wan, Richard
Alsaleh, Mustafa
Name ANZEIGE DER KETTE
Alsaleh, Mustafa
Name
Labuz, Joe
T I T E L
Bifurcations, Instabilities and Degradations in Geomaterials
Verlagsort
Berlin, Heidelberg
Verlag
Springer-Verlag Berlin Heidelberg
Erscheinungsjahr
2011
2011
Umfang
Online-Ressource (VIII, 372p. 236 illus., 126 illus. in color, digital)
Reihe
Springer Series in Geomechanics and Geoengineering ; 0
Notiz / Fußnoten
Contains a selection of papers from the 8th International Workshop on Bifurcation and Degradations in Geomaterials (IWBDG 2008)
Includes bibliographical references and index
Weiterer Inhalt
Title; Preface; Contents; Failure in Granular Materials: Macro and Micro Views; Introduction; Microstructural Origin of the Vanishing of the Second-Order Work; The Micro-directional Model; Microstructural Expression of the Macroscopic Second-Order Work; From Micro to Macro Second-Order Work; Micromechanical Analysis of the Vanishing of the Second-Order Work; Some Remarks on the Basic Micro-Macro Relation for the Second-Order Work; Conclusion; References; Instability in Loose Sand: Experimental Results and Numerical Simulations with a Microstructural Model; Introduction. Stress-Strain Model Based on Micromechanical ApproachInter-particle Behaviour; Interlocking Influence; Micro-Macro Relationship; Stress-Strain Relationship; Experimental and Numerical Evidences of Instability in Sand; Undrained Triaxial Tests; Numerical Simulations of Undrained Tests; Constant-q Tests; Analysis of Undrained Compression and Constant-q Tests in Terms of Instability Condition; Proportional Strain Paths; Analysis of Proportional Strain Paths in Terms of Instability Condition; Summary and Conclusion; References. Failure in Granular Materials in Relation to Material Instability and Plastic Flow IssuesIntroduction; Experimental Evidence of Diffuse Instability; Diffuse Instability, Controllolability and Sustainability Concepts; Material Instability Analysis in Element Tests; Elasto-plastic Constitutive Model; Analysis of Diffuse Instability; Plastic Flow Rule; Conclusions; References; Loss of Controllability in Partially Saturated Soils; Introduction; Fundamentals of the Loss of Controllability Theory; Generalized Stress Variables and Constitutive Modelling for Unsaturated Soils. Loss of Controllability in Partially Saturated SoilsSome Applications of the Loss of Controllability Theory for Unsaturated Soils; Oedometric Wetting Test; Compaction Banding in Unsaturated Soils; Volume Implosion and Influence of Material Parameters; Conclusions; References; Critical Plane Approach to Analysis of Failure Criteria for Anisotropic Geomaterials; Introduction; Critical Plane Approach to Formulation of Yield or Failure Criteria; Model Formulation; Application Examples; Active Pressure of a Rigid Wall on Anisotropic Material; Load Carrying-Capacity of Embedded Plate Anchors. Concluding RemarksReferences; A Simple Method to Consider Density and Bonding Effects in Modeling of Geomaterials; Introduction; One-Dimensional Model for Over-Consolidated Soil; One-Dimensional Model for Structured Soil; Three-Dimensional Model for Over-Consolidated and Structured Soils; Ordinary Method to Formulate Three-Dimensional Model; Method to Formulate Three-Dimensional Model Based on tij Concept; Extension of One-Dimensional Model to Three-Dimensional Model; Numerical Simulation of Structured Soil; Conclusions; References. Cyclic Mobility of Sand and Its Simulation in Boundary Value Problems
Titelhinweis
Buchausg. u.d.T.: ‡Bifurcations, instabilities and degradations in geomaterials
ISBN
ISBN 978-3-642-18284-6
Klassifikation
TG
TEC009070
TEC021000
*74-06
74G60
74H55
74L05
74L10
00B25
620.1
624.1
TA405-409.3
QA808.2
TZ 9200
ZI 6130
Kurzbeschreibung
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.
1. Schlagwortkette
Bodenmechanik
Gebirgsmechanik
Instabilität
Schadensmechanik
Verzweigung <Mathematik>
Kongress
ANZEIGE DER KETTE
Bodenmechanik -- Gebirgsmechanik -- Instabilität -- Schadensmechanik -- Verzweigung
-- Kongress
SWB-Titel-Idn
339787945
Signatur
Springer E-Book
Bemerkungen
Elektronischer Volltext - Campuslizenz
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$uhttp://dx.doi.org/10.1007/978-3-642-18284-6
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