Nakai T. Constitutive Modeling of Geomaterials: Principles and Applications

CRC Press, Taylor & Francis Group, 2013. 374 p. 248 Illustrations. — ISBN13: 978-0-203-86884-3 (eBook - PDF).Features
Presents a logical framework for modeling soil features
Verifies the models by testing various elements of clay and sand using unified material parameters
Explains the concepts behind the modeling of soil features in one-dimensional conditions
Extends the one-dimensional models to three-dimensional ones via the concept of modified stress tij
Illustrates the numerical simulations/modeling of typical geotechnical problems
Performs model tests/physical modeling corresponding to the numerical modelingWritten by a veteran geotechnical engineer with a long record of research discoveries, Constitutive Modeling of Geomaterials: Principles and Applications presents a simple and unified approach to modeling various features of geomaterials in general stress systems. The book discusses the fundamentals of the constitutive modeling of soils and illustrates the application of these models to boundary value problems.
Helping readers easily understand the fundamentals and modeling of soil behaviors, the author first explains the ideas and formulations for modeling soil features in one-dimensional conditions. He then extends the one-dimensional models to three-dimensional models using the tij concept. The text covers the subloading tij model and other methods that describe density, bonding, time effect, and more. Moving on to the practical application of the constitutive models, the author presents the numerical simulations of typical geotechnical problems (numerical modeling) and the corresponding model tests (physical modeling).
Using a framework that leads to a unified set of material parameters, this book shows how to formulate a constitutive model capable of simulating the main features of soil behavior. It not only covers recent methods and models but also uses real test data to prove their reliability.Modeling of GeomaterialsFundamentals of Conventional ElastoplasticityOne-dimensional modeling of elastoplastic materials
Multidimensional modeling of elastoplastic materialsModeling of One-Dimensional Soil BehaviorModeling of normally consolidated soils—conventional elastoplastic modeling
Modeling of overconsolidated soils—advanced elastoplastic modeling at stage I
Modeling of structured soils (naturally deposited soils)—advanced elastoplastic modeling at stage II
Modeling of other features of soils—advanced elastoplastic modeling at stage III
Loading condition using increment of total change of void ratio and explicit expression in advanced elastoplastic modeling
Application of the advanced model (stage III) to time-dependent behavior of soil
Meaning of present time-dependent model—common and different points to Sekiguchi model
Simulation of time-dependent behavior of soil in one-dimensional conditions
Application of advanced methods to modeling of some other featuresOrdinary Modeling of Three-Dimensional Soil BehaviorOutline of ordinary elastoplastic models such as the Cam clay model
Discussion on applicability of Cam clay type model in three-dimensional conditions based on test resultsUnified Modeling of Three-Dimensional Soil Behavior Based on the tij ConceptConcept of modified stress tij
Three-dimensional modeling of normally consolidated soils based on the tij conceptThree-Dimensional Modeling of Various Soil Features Based on the tij ConceptThree-dimensional modeling of overconsolidated soils—advanced elastoplastic modeling at stage I
Three-dimensional modeling of structured soils—advanced elastoplastic modeling at stage II
Three-dimensional modeling of other features of soils—advanced elastoplastic modeling at stage III
Conclusions of Part 1Numerical and Physical Modeling of Geotechnical ProblemsIntroduction to Numerical and Physical ModelingModeling the interface behavior between soil and structure
Geomaterials used in 2D and 3D model tests and their material parametersTunneling
Two-dimensional trapdoor problems
Three-dimensional trapdoor problems
Circular tunnelingEarth Pressure of Retaining Walls and Bearing Capacity of Foundations
Active and passive earth pressure behind retaining walls
Braced open excavation
Strip foundation and piled raft foundationReinforced Soils
Reinforced foundation under uplift loading
Reinforcing for increasing bearing capacityLocalization and Shear Band Development in Element TestsOutline of analyses
Results and discussion
Conclusions of Part 2