Experiments And Elastic Viscoplastic Constitutive Modeling Of Concrete And Geomaterials
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Experiments And Elastic Viscoplastic Constitutive Modeling Of Concrete And Geomaterials
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Author :
language : en
Publisher:
Release Date : 2003
Experiments And Elastic Viscoplastic Constitutive Modeling Of Concrete And Geomaterials written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.
Confined, unconfined, dynamic, and quasistatic compressive tests were conducted on strain gage instrumented specimens of concrete, mortar, and granite to produce data for determination of the parameters of an elastic/viscopiastic (EVP) constitutive model of these materials. In addition, concrete grout specimens were tested in dynamic and quasistatic compression to observe columnar fracture and changes in ultrasonic wave speeds. The EVP model captures the basic features of the material behavior such as strain-hardening, confining pressure, rate influence, creep, and relaxation phenomena. The model is applicable to fully 3-D stress conditions, but all parameters can be determined from the results of a few quasistatic and dynamic tests. Reasonable agreements between model and tests were obtained within the natural scatter of the data.
Frank L Di Maggio Symposium On Constitutive Modeling Of Geomaterials June 3 5 2002
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Author : Hoe I. Ling
language : en
Publisher: CRC Press
Release Date : 2003-01-23
Frank L Di Maggio Symposium On Constitutive Modeling Of Geomaterials June 3 5 2002 written by Hoe I. Ling and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003-01-23 with Technology & Engineering categories.
Scientists involved with geomaterial modeling honor the retirement of distinguished colleague Frank L. DiMaggio (civil engineering and engineering mechanics, Columbia U.) by offering contributions representing recent advances in the modeling of sand, clay, and concrete. DiMaggio contributed to the d
Geomaterials Constitutive Equations And Modelling
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Author : F. Darve
language : en
Publisher: CRC Press
Release Date : 2002-11-01
Geomaterials Constitutive Equations And Modelling written by F. Darve and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-11-01 with Architecture categories.
Bifurcations Instabilities And Degradations In Geomaterials
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Author : Richard Wan
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-16
Bifurcations Instabilities And Degradations In Geomaterials written by Richard Wan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-16 with Science categories.
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.
Deformation Characteristics Of Geomaterials
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Author : C.-K. Chung
language : en
Publisher: IOS Press
Release Date : 2011
Deformation Characteristics Of Geomaterials written by C.-K. Chung and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Technology & Engineering categories.
This book is the international edition of the proceedings of IS-Seoul 2011, the Fifth International Symposium on Deformation Characteristics of Geomaterials, held in Seoul, South Korea, in September 2011.The book includes 7 invited lectures, as well as 158 technical papers selected from the 182 submitted. The symposium explored ideas about the complex load-deformation response in geomaterials, including laboratory methods for small and large strains; anisotropy and localization; time-dependent responses in soils; characteristics of treated, unsaturated, and natural geomaterials; applications in field methods; evaluation of field performance in geotechnical structures; and physical and numerical modeling in geomechanics. These topics were grouped under a number of main themes, including experimental investigations from very small strains to beyond failure; behavior, characterization and modeling of various geomaterials; and practical prediction and interpretation of ground response: field observation and case histories. Both the symposium and this book represent an important contribution to the exchange of advanced knowledge and ideas in geotechnical engineering and promote partnership among participants worldwide.
Rate Effects In The Constitutive Modeling Of Concrete And Geomaterials Including Plasticity And Damage
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Author : Vassilis P. Panoskaltsis
language : en
Publisher:
Release Date : 1992
Rate Effects In The Constitutive Modeling Of Concrete And Geomaterials Including Plasticity And Damage written by Vassilis P. Panoskaltsis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Deformation Characteristics Of Geomaterials
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Author : H. DiBenedetto
language : en
Publisher: CRC Press
Release Date : 2005-03-03
Deformation Characteristics Of Geomaterials written by H. DiBenedetto and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-03-03 with Science categories.
Solutions for soil engineering and soil-structure interaction problems need realistic and pertinent experimental and modelling tools. In this work, extensive developments proposed by the invited speakers of the Lyon International Symposium held in September 2003 are presented, including experimental investigations into deformation properties; laboratory, in-situ and field observation interpretations; behaviour characterisation and modelling; and case histories. The contributions include recent investigations into anisotropy and non-linearity, the effects of stress-strain-time history, ageing and time effects, yielding, failure and flow, cyclic and dynamic behaviour. In addition, advanced geotechnical testing is applied to real engineering problems, and to ways of synthesising information from a range of sources while engaging in practical site characterisation studies.
Computational Modeling Of Multiphase Geomaterials
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Author : Fusao Oka
language : en
Publisher: CRC Press
Release Date : 2012-07-05
Computational Modeling Of Multiphase Geomaterials written by Fusao Oka and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-07-05 with Technology & Engineering categories.
Computational Modeling of Multiphase Geomaterials discusses how numerical methods play a very important role in geotechnical engineering and in the related activity of computational geotechnics. It shows how numerical methods and constitutive modeling can help predict the behavior of geomaterials such as soil and rock.After presenting the fundament
Fy Us Air Force Plan For Defense Research Sciences
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Author :
language : en
Publisher:
Release Date : 1985
Fy Us Air Force Plan For Defense Research Sciences written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Aeronautics, Military categories.
Foundations Of Elastoplasticity Subloading Surface Model
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Author : Koichi Hashiguchi
language : en
Publisher: Springer Nature
Release Date : 2023-06-12
Foundations Of Elastoplasticity Subloading Surface Model written by Koichi Hashiguchi and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-06-12 with Science categories.
This book is the standard text book for elastoplasticity/viscoplasticity which is explained comprehensively covering the rate-independent to -dependent finite deformations of metals, soils, polymers, crystal plasticity, etc. and the friction phenomenon. Concise explanations on vector-tensor analysis and continuum mechanics are provided first, covering the underlying physical concepts, e.g. various time-derivatives, pull-back and push-forward operations, work-conjugacy and multiplicative decomposition of deformation gradient tensor. Then, the rigorous elastoplastic/viscoplastic model, called the subloading surface model, is explained comprehensively, which is based on the subloading surface concept to describe the continuous development of the plastic/viscoplastic strain rate as the stress approaches to the yield surface, while it can never be described by the other plasticity models, e.g. the Chaboche-Ohno and the Dafalias-Yoshida models assuming the purely-elastic domain. The main features of the subloading surface model are as follows: 1) The subloading surface concept underling the cyclic plasticity is introduced, which insists that the plastic deformation develops as the stress approaches the yield surface. Thus, the smooth elastic-plastic transition leading to the continuous variation of the tangent stiffness modulus is described always. 2) The subloading-overstress model is formulated by which the elastoplastic deformation during the quasi-static loading and the viscoplastic deformation during the dynamic and impact loading can be described by the unified equation. Then, only this model can be used to describe the deformation in the general rate of deformation, disusing the elastoplastic constitutive equation. 3) The hyperelastic-based (visco)plasticity based on the multiplicative decomposition of deformation gradient tensor and the subloading surface model is formulated for the exact descriptions of the finite elastic and (visco)plastic deformations. 4) The subloading-friction model is formulated for the exact description of the dry and the fluid (lubricated) frictions at the general rate of sliding from the static to the impact sliding. Thus, all the elastic and inelastic deformation/sliding phenomena of solids can be described accurately in the unified equation by the subloading-overstress model. The subloading surface model will be engraved as the governing law of irreversible deformation of solids in the history of solid mechanics.