Download or read book A Constitutive Model for Agricultural Clay Soil written by R.L. Kushwaha and published by . This book was released on 1994 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Constitutive Modeling of Soils and Rocks written by Pierre-Yves Hicher and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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. The first half of the book concentrates on the elastoplasticity of soft soils and rocks, while the second half examines that of hard soils and rocks.

Download or read book Constitutive Modeling the Elasto viscoplastic Behavior of Regina Clay Soil Under the Drained Stress Path Condition written by yiwei luo and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The stress-strain behavior of soft clay soil is dependent on the applied strain rate and such time dependency behavior should be considered in geotechnical engineering projects such as the bearing capacity analysis for a foundation. Most previous studies focus on elastic-viscoplastic behavior of clay soil under an undrained stress path condition. The developed constitutive models cannot simulate the strong time-dependent stress-strain relation of soft clay under the drained stress path condition. In the long-term bearing capacity analysis for a shallow foundation, the neglect of the time-dependent stress-strain relation of soft clay may result in inaccurate result. In this study, the strain-rate-dependent soil behavior is modeled using the Drucker-Prager/Cap model with the consideration of soil creep behavior. Both consolidation creep and shear creep mechanisms are considered in the modeling. A simplified approach is proposed to derive creep parameters from stress relaxation test results. The constitutive modeling is validated against experimental measurements on strain-rate-dependent behavior of Regina clay soil under the drained stress path condition. Finite element modeling on the long-term bearing capacity of a shallow foundation on soft clay is also performed. The result shows that the considering of viscoplastic behavior of clay soils does not affect the ultimate bearing capacity. However, it yields the lower bound of developed shear stress of a shallow foundation at a given vertical displacement, which is to be conservative from the engineering point of view.

Download or read book Practice of Constitutive Modelling for Saturated Soils written by Zhen-Yu Yin and published by Springer Nature. This book was released on 2020-09-11 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of a constitutive modeling platform for soil testing, which is one of the key components in geomechanics and geotechnics. It discusses the fundamentals of the constitutive modeling of soils and illustrates the use of these models to simulate various laboratory tests. To help readers understand the fundamentals and modeling of soil behaviors, it first introduces the general stress–strain relationship of soils and the principles and modeling approaches of various laboratory tests, before examining the ideas and formulations of constitutive models of soils. Moving on to the application of constitutive models, it presents a modeling platform with a practical, simple interface, which includes various kinds of tests and constitutive models ranging from clay to sand, that is used for simulating most kinds of laboratory tests. The book is intended for undergraduate and graduate-level teaching in soil mechanics and geotechnical engineering and other related engineering specialties. Thanks to the inclusion of real-world applications, it is also of use to industry practitioners, opening the door to advanced courses on modeling within the industrial engineering and operations research fields.

Download or read book Modelling of Soil Behaviour with Hypoplasticity written by David Mašín and published by Springer. This book was released on 2018-12-12 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the hypoplastic modelling framework. It is divided into two parts, the first of which is devoted to principles of hypoplasticity. First, the basic features of soil’s mechanical behaviour are introduced, namely non-linearity and asymptotic properties. These features are then incorporated into simple one-dimensional hypoplastic equations for compression and shear. Subsequently, a hypoplastic equivalent of the Modified Cam-Clay model is developed in 2D space using stress and strain invariants to demonstrate key similarities and differences between elasto-plastic and hypoplastic formulations. Lastly, the mathematical structure of hypoplastic models is explained by tracing their historical development, from the early trial-and-error models to more recent approaches. In turn, Part II introduces specific hypoplastic models for soils. First, two reference models for sand and clay are defined. After summarising their mathematical formulations, calibration procedures are described and discussed. Subsequently, more advanced modelling approaches are covered: the intergranular strain concept incorporating the effects of small strain stiffness and cyclic loading, viscohypoplasticity for predicting rate effects, soil structure to represent structured and bonded materials and soil anisotropy. The book concludes with a description of partial saturation and thermal effects: topics that are increasingly important to the disciplines of energy and environmental geotechnics. Selecting a constitutive model and its parameters is often the most important and yet challenging part of any numerical analysis in geotechnical engineering. Hypoplasticity involves a specific class of soil constitutive models, which are described in detail here. The book offers an essential resource, both for model users who need a more advanced model for their geotechnical calculations and are mainly interested in parameter calibration procedures, and for model developers who are seeking a comprehensive understanding of the mathematical structure of hypoplasticity.

Download or read book An Elasto plastic Constitutive Model for Agricultural Cohesive Soil written by L. Chi and published by . This book was released on 1990 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Constitutive Models for an Agricultural Soil written by Ann Markel Samford and published by . This book was released on 1981 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Unified Constitutive Model for Clay and Sand written by H. S. Yu and published by . This book was released on 1995 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book MECHANICAL BEHAVIOUR OF HARDSETTING SOILS written by Ayub Gitau and published by LAP Lambert Academic Publishing. This book was released on 2010-12 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: An unsaturated soil mechanics approach was used to define critical state relations for agricultural soils. The modified cam clay model, an elasto- plastic constitutive model based on the critical state concept was used to model the soil behaviour. Mechanical properties of the hard setting soils thought to be pertinent to tillage were identified and constitutive relations developed through the critical state theories. The book is useful to researchers in the areas of critical state soil mechanics, mechanical behaviour of soils, soil tillage, and establishment of tillage machinery requirement and tool design. The book is highly relevant as reference material for engineering students in institutions of higher learning in; soil mechanics, tillage, machinery and modelling. Final year undergraduate students will find the book pertinent in Geotechnical design projects. Post graduate geotechnical students will find the book resourceful during their literature search and research reference. Practicing engineers in Geotechnical engineering, soil tillage and field machinery selection will find it relevant as a reference text.

Download or read book A Time dependent Constitutive Model for Cohesive Soils written by Rudolph Bonaparte and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Machine Interactions written by Shen and published by Routledge. This book was released on 2017-11-13 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aiming to improve work efficiency in such areas as tillage in agriculture, earth-moving in civil engineering, and tunnel-making in sea-bed operations, this work offers an introduction to Finite Element Method (FEM) analysis of soil-machine systems. It explains the advantage of FEM's numerical approach over traditional analytical and empirical methods of dealing with complex factors from nonlinear mechanical behaviour to geometric configurations.

Download or read book Adapting the Modified Cam Clay Constitutive Model to the Computational Analysis of Dense Granular Soils written by Jose Alejandro Arvelo G. and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The computational constitutive Modified Cam Clay Model (MCCM) was developed at Cambridge to study the behavior of clays and has been proven to be effective. In this study, this model is extended to the case of dense sands to analyze the accuracy of the stress-strain behavior. This analysis is based on triaxial test data applied to remolded and compacted sand samples under drained conditions.

Download or read book Numerical Modeling of Soil Constitutive Relationship written by Qingyang Ren and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book adopts numerical method to model soil constitutive relationship while it abandons the traditional idea of looking for plastic potential as the only way to model. Firstly, the triaxial compression tests of expansive soil, sand and clay under different stress paths are introduced; then the elastoplastic constitutive equations of expansive soil, sand and clay under various stress paths are established by numerical modeling method; finally, the constitutive equations are embedded in the finite element program and verified by comparing the finite element calculation results of the triaxial test soil samples with the corresponding test results. The modeling obtains high accuracy.

Download or read book An Inelastic Constitutive Model for Soils written by Yii-Wen Pan and published by . This book was released on 1986 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Application of Plasticity in Soil Constitutive Modeling written by R.L. Kushwaha and published by . This book was released on 1994 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Constitutive Modeling linear and Nonlinear Elasticity a Tutorial Presentation written by S.K. Upadhyaya and published by . This book was released on 1994 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanical Behavior and Constitutive Modelling of Natural Structured Soils written by Ken'ichi Soga and published by . This book was released on 1994 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: